Milk

A glass of cow's milk

Milk most often means the nutrient fluid produced by the mammary glands of female mammals. The female ability to produce milk is one of the defining characteristics of mammals and provides the primary source of nutrition for newborns before they are able to digest more diverse foods. It is also processed into dairy products such as cream, butter, yoghurt, ice-cream, gelato, cheese, casein, whey protein, lactose, condensed milk, powdered milk, and many other food-additive and industrial products.

It can also be used to mean:

  • The white juice and the processed meat of the coconut in more-or-less liquid form, used especially in Thai, Indian (Kerala), and Polynesian cuisine.
  • A non-animal substitute such as soy milk, rice milk, and almond milk.
  • Crop milk, the regurgitated substance pigeons feed their young.

Human milk is fed to infants through breastfeeding, either directly or by the female expressing her milk to be saved and fed later. The early lactation milk is known as colostrum, and carries the mother's antibodies to the baby. It can reduce the risk of many diseases in both mother and baby.

Composition and nutrition

The composition of milk differs widely between species. Factors such as the type of protein; the proportion of protein, fat, and sugar; the levels of various vitamins and minerals; and the size of the butterfat globules and the strength of the curd are among those than can vary.[1] For example:

  • Human milk contains, on average, 1.1% protein, 4.2% fat, 7.0% lactose (a sugar), and supplies 72 kcal of energy per 100 grams.
  • Cow's milk contains, on average, 3.4% protein, 3.6% fat, and 4.6% lactose, and supplies 66 kcal of energy per 100 grams.

Lactose in milk is digested with the help of the enzyme lactase. In humans, production of lactase can decline in adulthood, leading to an inability to digest milk; this is known as lactose intolerance. Some human populations (most notably Europeans) retain the ability to digest lactose into adulthood.

Cow's milk

In the Western world, cow's milk is extracted on an industrial scale for human consumption and industrial uses. It is the most commonly consumed form of milk. Dairy farming has become such a large business that in many countries the process is highly automated, with farmers using machines that attach directly to the teats of the cow's udder to speed milking, and breeds of cattle, such as Holstein, specially bred for increased milk production.

Commercial processing of milk

a cow-milking machine in action

In North America a dairy facility processes milk and products obtained from milk (dairy products), such as cream, butter, and cheese. Most dairies are local companies, as opposed to large or nationwide companies found in the southern hemisphere.

Upon standing, fresh milk has a tendency to separate into a high-fat cream layer on top of a larger, skim-milk layer. The cream is often sold as a separate product with its own uses. In the United States, a blended mixture of half cream and half milk is often sold in smaller quantities and is called half-and-half. Half-and-half is used for creaming coffee and similar uses.

Milk produced for commercial consumption usually undergoes several processes. Pasteurization kills many harmful microorganisms by heating the milk for a short time and then cooling it for storage and transportation. Pasteurized milk is still perishable and must be stored cold by both suppliers and consumers. Dairies print expiration dates on each container, after which stores will remove any unsold milk from their shelves. In many countries it is illegal to sell milk that is not pasteurized.

A complementary process for commercial milk is homogenization. This mechanically reduces the size of the fat globules, so that they will not separate out into a cream layer.

Milk, sold commercially in countries where the cattle (and often the people) live indoors, commonly has vitamin D added to it to make up for lack of exposure to UVB radiation. Milk often has flavoring added to it for better taste or as a means of improving sales. Chocolate-flavored milk has been sold for many years, followed recently by other flavors of milk and cream.

South Australia has the highest consumption of flavoured milk per person, where Farmers Union Iced Coffee outsells Coca-Cola, a success shared only by Inca Kola in Peru and Irn-Bru in Scotland.

Those preferring raw milk argue that the pasteurization process also kills beneficial microorganisms and important nutritional constituents. The resulting pasteurized product is said to contribute to its own indigestability, be less nutritious, and turn rancid (as opposed to sour) with age. Raw Milk Versus Pasteurized Milk

Nutritional benefits

A serving (1 cup or 250 ml) of 2%-fat milk contains 285 mg of calcium, which represents 22% to 29% of the daily recommended intake (DRI) of calcium for an adult, depending on the age, 8 grams of protein, and a number of other nutrients (either naturally or through fortification):

  • Vitamins D and K - essential for bone health
  • Iodine - a mineral essential for thyroid function
  • Vitamin B12 and Riboflavin - necessary for cardiovascular health and energy production
  • Biotin and Pantothenic Acid - B vitamins important for energy production
  • Vitamin A - critical for immune function
  • Potassium and Magnesium - for cardiovascular health
  • Selenium - cancer-preventive trace mineral
  • Thiamine - B-vitamin important for cognitive function, especially memory
  • Conjugated linoleic acid - beneficial fatty acid that inhibits several types of cancer in mice, has been shown to kill human skin cancer, colorectal cancer and breast cancer cells in in vitro studies, and may help lower cholesterol and prevent atherosclerosis; only available in milk from grass-fed cows

Studies show possible links between low-fat milk consumption and reduced risk of arterial hypertension, coronary heart disease, and obesity. Overweight individuals who drink milk may benefit from decreased risk of insulin resistance and type 2 diabetes. [2]

Nutritional side-effects

Overconsumption of Cow's milk is argued to be unhealthy primarily due to its fat and cholesterol content. The following studies are used to support this position:

  • Some milk is rich in saturated fat, which studies have linked to increased risk of atherosclerosis and coronary heart disease. Low-fat and non-fat forms of milk may mitigate any such risk.
  • Up to 70% of humans have an incomplete ability to digest milk, lactose intolerance. For those individuals, milk may induce symptoms such as cramping, bloating, gas, and diarrhoea. Certain ethnic groups may be more susceptible to these effects.
  • Critics dispute the claim that drinking large amounts of milk can reduce the risk of bone fractures, especially in the elderly. Studies have failed to associate high calcium intakes with lower risk of hip and forearm fractures in men[3] or women[4].
  • Critics of milk claim that plant-based sources of calcium are preferable, on the grounds that animal proteins in milk causes leaching or excretion of calcium from bones.[5] Such critics refute the claim that milk prevents osteoporosis and make the counterclaim that milk, in fact, contributes to that disease.
  • A study published in June 2005 suggests that consumption of milk by 9- to 14-year-old children is associated with weight gain, although the researchers identify that excessive calorie intake is the cause rather than dairy specific factors. Researchers were surprised by their conclusion that weight gain was associated with dietary calcium and low-fat or skim milk, but not dairy fat.[6]
  • A February 2005 study found a positive association between acne and the consumption of whole milk, skim milk, and other dairy products in high-school-age women.[7].
  • Two studies show a correlation between high galactose consumption, and high rates of ovarian cancer. [8][9]
  • A study suggests a correlation between high calcium intake and prostate cancer.[10]. There is no evidence that any such problem is specific to milk. A review published by the World Cancer Research Fund and the American Institute for Cancer Research states that at least 11 human population studies have linked dairy product consumption and prostate cancer.

Also there has been some controversy over whether or not humans, or any other mammals, are designed to consume milk after infancy. This article, published by PETA, highlights some of the debate. http://www.notmilk.com/kradjian.html

Distribution

Glass milk bottles used for home delivery service A brick of French UHT milk

Because of the perishable nature of milk, expeditious distribution is desirable. In many countries milk used to be delivered to households daily, but economic pressure has made milk delivery much less popular, and in many areas daily delivery is no longer avialable. People buy it chilled at grocery or convenience stores or similar retail outlets. Prior to the widespread use of plastics, milk was often distributed to consumers in glass bottles, and before that in bulk that was ladled into the customer's container. In the UK, milk can be delivered daily by a milkman who travels his local milk round (route) using a battery-powered milk float, although this is becoming less popular as a result of supermarkets selling milk at cheaper prices. In New Zealand, milk is no longer distributed in glass bottles.

In the United States bottles were replaced with milk cartons, tall boxes with a square cross-section and a peaked top that can folded outward upon opening to form a spout. Now milk is increasingly sold in plastic bottles. First the gallon and half-gallon sizes were sold in plastic jugs while the smaller sizes were sold in milk cartons. Recently milk has been sold in smaller resealable bottles made to fit in automobile cup holders.

The half-pint milk carton is the traditional unit as a component of school lunches. In the US, pictures of missing children were printed on the larger milk cartons as a public service until it was determined that this was disturbing to children.

Milk preserved by the UHT process is sold in boxes often called a "brick" that lack the peak of the traditional milk carton. Milk preserved in this fashion does not need to be refrigerated before opening and has a longer shelf life than milk in ordinary packaging.

Glass milk containers are rare these days. Most people purchase milk in plastic jugs or bags or in waxed-paper cartons. Ultraviolet light from fluorescent lighting can destroy some of the proteins in milk so many companies that once distributed milk in transparent or highly translucent containers are now using thicker materials that block the harmful rays. Many people feel that such "UV protected" milk tastes better.

Milk comes in a variety of containers with local variants:

  • United States: Commonly sold in gallon, half-gallon and quart containers (U.S. customary units) of rigid plastic or, occasionally for sizes less than a gallon, waxed cardboard. The US single-serving size is usually the half-pint (about 240 ml).
  • Canada: A 1 1/3 litre plastic bag (sold as 4 litres in 3 bags) is the most common, while 2 litre, 1 litre, 500 millilitre, and 250 millilitre cartons are also available. 4 litre plastic jugs are also available.
  • Parts of Europe: Sizes of 500 millilitres, 1 litre (the most common), 2 litres and 3 litres are commonplace.
  • United Kingdom: Most stores stock the equivalents of old Imperial sizes: 568 ml (1 pint), 1.136 l (2 pints), 2.273 l (4 pints) or, rarely, a combination including both metric and imperial sizes).
  • Australia and New Zealand: Distributed in a variety of sizes, most commonly in Tetra Paks for up to 1 litres, and plastic screw-top bottles beyond that. Most UHT-milk is packed in 1 litre paper containers with a sealed plastic spout.
  • South Africa: Commonly sold in 1 litre bags. The bag is then placed in a plastic jug and the corner cut off before the milk is poured.

Condensed milk is distributed in metal cans, 250 and 125 ml paper containers and 100 and 200 ml squeeze tubes, and powdered milk (skim and whole) is distributed in boxes or bags.

Varieties and brands

Cow's milk is generally available in several varieties. In some countries these are:

  • Full cream (or "whole" in North America, about 3.25% fat)
  • Semi-skimmed ("reduced fat" or "low fat", about 1.5-1.8% fat)
  • Skimmed (about 0.1% fat)

Milk in the U.S. and Canada is sold as:

  • Whole varieties
  • 2 % (reduced fat)
  • 1 % (low fat)
  • 1/2 % (very low fat)
  • Skim (no fat)

Note: In Canada "whole" milk refers to unhomogenized milk. "Homogenized" milk (or "Homo milk" in short) refers to milk which is 3.25% butterfat. Generally all store-bought milk in Canada has been homogenized, yet the term is also used as a name to describe butterfat content for a specific variety of milk. Modern commercial dairy processing techniques involve first removing all of the butterfat, and then adding back the appropriate amount depending on which product is being produced on that particular line.

In Britain, it is possible to get Channel Island milk, which is 5.5% fat.

In the United States, skim milk is also known as "fat free" milk, due to USDA regulations stating that any food with less than 1/2 gram of fat per serving can be labeled "fat free".

Full cream, or whole milk, has the full milk fat content (about 3-4% if Friesian- or Holstein-breed are the source). For skimmed or semi-skimmed milk, all of the fat content is removed and then some (in the case of semi-skimmed milk) is returned. The best-selling variety of milk is semi-skimmed; in some countries full-cream (whole) milk is generally seen as less healthy and skimmed milk is often thought to lack taste. Whole milk is recommended to provide sufficient fat for developing toddlers who have graduated from breast milk or infant formula.

Other milk animals

In addition to cows, the following animals provide milk for dairy products:

  • Sheep
  • Goats
  • Horses
  • Donkeys
  • Camels (including the South American camelids)
  • Yaks
  • Water buffalo
  • Reindeer

In Russia and Sweden, small moose dairies also exist. Donkey and horse milk have the lowest fat content, while the milk of seals contains more than 50% fat. [11]

Curdling

When raw milk is left standing for a while, it turns sour. This is the result of fermentation: lactic acid bacteria turning the milk sugar into lactic acid. This fermentation process is exploited in the production of various dairy products such as cheese and yogurt. There are four noted periods of milk decay:

  • Rancid (also called "on the turn". Milk is still consumable at this stage)
  • Curdling (separation of curd and whey will occur but may still be consumable)
  • Coagulation (beyond use. A period of aromatic decay sets in accompanied by mould)
  • Dry (beyond use. The milk has dehydrated and become hard and chalky)

Pasteurized cow's milk, on the other hand, spoils in a way that makes it unsuitable for consumption, causing it to assume an unpleasant odor and pose a high danger of food poisoning if ingested. The naturally-occurring lactic acid bacteria in raw milk, under suitable conditions, quickly produce large amounts of lactic acid. The ensuing acidity in turn prevents other germs from growing, or slows their growth significantly. Through pasteurization, however, these lactic acid bacteria are mostly destroyed, which means that other germs can grow unfettered and thus cause decomposition.

In order to prevent spoilage, milk can be kept refrigerated and stored between 1 and 4 degrees Celsius. Most milk is pasteurized by heating briefly and then refrigerated to allow transport from factory farms to local markets. The spoilage of milk can be forestalled by using ultra-high temperature (UHT) treatment; milk so treated can be stored unrefrigerated for several months until opened. Sterilized milk, which is heated for a much longer period of time, will last even longer, but also lose more nutrients and assume a still different taste. Condensed milk, made by removing most of the water, can be stored for many months, unrefrigerated. The most durable form of milk is milk powder which is produced from milk by removing almost all water.

Why milk expands on heating

Milk does not actually reach boiling point faster than water. The reason behind the quick expansion of milk on heating is due to its chemical composition. Proteins have the ability of coating bubbles and stabilizing foams; milk is an emulsion of very small fat droplets coated by casein.

At and below room temperature, droplets are arranged in a way that protects them from coalescing. On heating, this subtle architecture is destroyed: milk reaches a temperature (below boiling point of water) in which protein molecules are irreversibly changed in their spatial arrangement (denatured). Casein, together with other components, thereby forms a tough film which surrounds the water vapour bubbles of boiling milk, preventing them from breaking. This has the effect that the milk is transformed into a relatively stable foam, which occupies a much larger volume than the original liquid.

References

[12] Introduction to Dairy Science,Guelph


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[12] Introduction to Dairy Science,Guelph. Films provide them in an accessible and powerful way. This has the effect that the milk is transformed into a relatively stable foam, which occupies a much larger volume than the original liquid. Civilization develops and changes, at least in surface features, and so calls for a constant renewal of artistic means to channel these desires. Casein, together with other components, thereby forms a tough film which surrounds the water vapour bubbles of boiling milk, preventing them from breaking. The reason motion pictures endure is because people still want escapism, adventure, inspiration, humor and to be moved emotionally. On heating, this subtle architecture is destroyed: milk reaches a temperature (below boiling point of water) in which protein molecules are irreversibly changed in their spatial arrangement (denatured). all involve plots with common threads that existed in books, plays and other venues.

At and below room temperature, droplets are arranged in a way that protects them from coalescing. Romantic motion pictures about a girl loving a guy but not being able to be together for some reason, movies about a hero who fights against all odds a more powerful fiendish enemy, comedies about everyday life, etc. Proteins have the ability of coating bubbles and stabilizing foams; milk is an emulsion of very small fat droplets coated by casein. Apart from societal norms and cultural changes, there are still close resemblances between theatrical plays throughout the ages and films of today. The reason behind the quick expansion of milk on heating is due to its chemical composition. Many believe that film will be a long enduring art form because motion pictures appeal to diverse human emotions. Milk does not actually reach boiling point faster than water. Films have been around for more than a century, however this is not long when you consider it in relation to other arts like painting and sculpture.

The most durable form of milk is milk powder which is produced from milk by removing almost all water. Yet the migration is gradual, and as of 2005 most major motion pictures are still recorded on film. Condensed milk, made by removing most of the water, can be stored for many months, unrefrigerated. These approaches are extremely beneficial to moviemakers, especially because footage can be evaluated and edited without waiting for the film stock to be processed. Sterilized milk, which is heated for a much longer period of time, will last even longer, but also lose more nutrients and assume a still different taste. Modern digital video cameras and digital projectors are gaining ground as well. The spoilage of milk can be forestalled by using ultra-high temperature (UHT) treatment; milk so treated can be stored unrefrigerated for several months until opened. Some films in recent decades have been recorded using analog video technology similar to that used in television production.

Most milk is pasteurized by heating briefly and then refrigerated to allow transport from factory farms to local markets. Film preservation of decaying film stock is a matter of concern to both film historians and archivists, and to companies interested in preserving their existing products in order to make them available to future generations (and thereby increase revenue). In order to prevent spoilage, milk can be kept refrigerated and stored between 1 and 4 degrees Celsius. Digital methods have also been used to restore and preserve films. Through pasteurization, however, these lactic acid bacteria are mostly destroyed, which means that other germs can grow unfettered and thus cause decomposition. Some studios save three B&W negatives exposed through red, green, and blue filters. The ensuing acidity in turn prevents other germs from growing, or slows their growth significantly. Most movies on cellulose nitrate base have been copied onto modern safety films.

The naturally-occurring lactic acid bacteria in raw milk, under suitable conditions, quickly produce large amounts of lactic acid. However, historic films have problems in terms of preservation and storage, and the motion picture industry is exploring many alternatives. Pasteurized cow's milk, on the other hand, spoils in a way that makes it unsuitable for consumption, causing it to assume an unpleasant odor and pose a high danger of food poisoning if ingested. Film has also been incorporated into multimedia presentations, and often has importance as primary historical documentation. There are four noted periods of milk decay:. It can be used to present a progressive sequence of still images in the form of a slideshow. This fermentation process is exploited in the production of various dairy products such as cheese and yogurt. As a medium, film is not limited to motion pictures, since the technology developed as the basis for photography.

This is the result of fermentation: lactic acid bacteria turning the milk sugar into lactic acid. The soundtrack can be recorded separately from shooting the film, but for live-action pictures many parts of the soundtrack are usually recorded simultaneously. When raw milk is left standing for a while, it turns sour. Improvements since the late 19th century include the mechanization of cameras, allowing them to record at a consistent speed, the invention of more sophisticated filmstocks and lenses, allowing directors to film in increasingly dim conditions, and the development of synchronized sound, allowing sound to be recorded at exactly the same speed as its corresponding action. [11]. A new standard speed, 24 frames per second, came with the introduction of sound. Donkey and horse milk have the lowest fat content, while the milk of seals contains more than 50% fat. Originally moving picture film was shot at various speeds using hand-cranked cameras; then the speed for mechanized cameras and projectors was standardized at 16 frames per second, which was faster than much existing hand-cranked footage.

In Russia and Sweden, small moose dairies also exist. Stock widths and the film format for images on the reel have had a rich history, though most large commercial films are still shot on (and distributed to theaters) as 35 mm prints. In addition to cows, the following animals provide milk for dairy products:. Cellulose nitrate was the first type of film base used to record motion pictures, but due to its flammability was eventually replaced by safer materials. Whole milk is recommended to provide sufficient fat for developing toddlers who have graduated from breast milk or infant formula. Filmstock consists of a transparent celluloid, polyester, or other plastic base coated with an emulsion containing light-sensitive chemicals. The best-selling variety of milk is semi-skimmed; in some countries full-cream (whole) milk is generally seen as less healthy and skimmed milk is often thought to lack taste. According to a 2000 study by ABN AMRO, about 26% of Hollywood movie studios' worldwide income came from box office ticket sales; 46% came from VHS and DVD sales to consumers; and 28% came from television (broadcast, cable, and pay-per-view).

For skimmed or semi-skimmed milk, all of the fat content is removed and then some (in the case of semi-skimmed milk) is returned. There are a few movies every year that defy this rule, often limited-release movies that start in only a few theaters and actually grow their theater count through good word-of-mouth and reviews. Full cream, or whole milk, has the full milk fat content (about 3-4% if Friesian- or Holstein-breed are the source). However, today's barrage of highly marketed movies ensures that most movies are shown in first-run theaters for less than 8 weeks. In the United States, skim milk is also known as "fat free" milk, due to USDA regulations stating that any food with less than 1/2 gram of fat per serving can be labeled "fat free". The actual percentage starts with a number higher than that, and decreases as the duration of a film's showing continues, as an incentive to theaters to keep movies in the theater longer. In Britain, it is possible to get Channel Island milk, which is 5.5% fat. The movie theater pays an average of about 55% of its ticket sales to the movie studio, as film rental fees.

Modern commercial dairy processing techniques involve first removing all of the butterfat, and then adding back the appropriate amount depending on which product is being produced on that particular line. And indeed, some films that are rejected by their own studios upon completion are dumped into these markets. Generally all store-bought milk in Canada has been homogenized, yet the term is also used as a name to describe butterfat content for a specific variety of milk. These are often considered to be of inferior quality compared to theatrical releases. "Homogenized" milk (or "Homo milk" in short) refers to milk which is 3.25% butterfat. Some films are now made specifically for these other venues, being released as made-for-TV movies or direct-to-video movies. Note: In Canada "whole" milk refers to unhomogenized milk. Recording technology has also enabled consumers to rent or buy copies of films on video tape or DVD (and the older formats of laserdisc, VCD and SelectaVision—see also videodisc), and Internet downloads may be available and have started to become revenue sources for the film companies.

and Canada is sold as:. The development of television has allowed films to be broadcast to larger audiences, usually after the film is no longer being shown in theaters. Milk in the U.S. Originally, all films were made to be shown in movie theaters. In some countries these are:. Today, the bulk of the material shown before the feature film (those in theaters) consists of previews for upcoming movies and paid advertisements (also known as trailers or "The Twenty"). Cow's milk is generally available in several varieties. There were "double features"; typically, a high quality "A picture" rented by an independent theater for a lump sum, and a "B picture" of lower quality rented for a percentage of the gross receipts.

Condensed milk is distributed in metal cans, 250 and 125 ml paper containers and 100 and 200 ml squeeze tubes, and powdered milk (skim and whole) is distributed in boxes or bags. Typically, one film is the featured presentation (or feature film). Milk comes in a variety of containers with local variants:. In the United States, these theaters came to be known as nickelodeons, because admission typically cost a nickel (five cents). Many people feel that such "UV protected" milk tastes better. Thousands of such theaters were built or converted from existing facilities within a few years. Ultraviolet light from fluorescent lighting can destroy some of the proteins in milk so many companies that once distributed milk in transparent or highly translucent containers are now using thicker materials that block the harmful rays. The first theater designed exclusively for cinema opened in Pittsburgh, Pennsylvania in 1905.

Most people purchase milk in plastic jugs or bags or in waxed-paper cartons. When it is initially produced, a film is normally shown to audiences in a movie theater. Glass milk containers are rare these days. This method was pioneered by UPA and popularized (some say exploited) by Hanna-Barbera, and adapted by other studios as cartoons moved from movie theaters to television. Milk preserved in this fashion does not need to be refrigerated before opening and has a longer shelf life than milk in ordinary packaging. Limited animation is a way of increasing production and decreasing costs of animation by using "short cuts" in the animation process. Milk preserved by the UHT process is sold in boxes often called a "brick" that lack the peak of the traditional milk carton. Several independent animation producers have gone on to enter the professional animation industry.

In the US, pictures of missing children were printed on the larger milk cartons as a public service until it was determined that this was disturbing to children. However, the field of independent animation has existed at least since the 1950s, with animation being produced by independent studios (and sometimes by a single person). The half-pint milk carton is the traditional unit as a component of school lunches. Because animation is very time-consuming and often very expensive to produce, the majority of animation for TV and movies comes from professional animation studios. Recently milk has been sold in smaller resealable bottles made to fit in automobile cup holders. Graphics file formats like GIF, MNG, SVG and Flash allow animation to be viewed on a computer or over the Internet. First the gallon and half-gallon sizes were sold in plastic jugs while the smaller sizes were sold in milk cartons. Generating such a film is very labour intensive and tedious, though the development of computer animation has greatly sped up the process.

Now milk is increasingly sold in plastic bottles. When the frames are strung together and the resulting film is viewed at a speed of 16 or more frames per second, there is an illusion of continuous movement (due to the persistence of vision). In the United States bottles were replaced with milk cartons, tall boxes with a square cross-section and a peaked top that can folded outward upon opening to form a spout. Animation is the technique in which each frame of a film is produced individually, whether generated as a computer graphic, or by photographing a drawn image, or by repeatedly making small changes to a model unit (see claymation and stop motion), and then photographing the result with a special animation camera. In New Zealand, milk is no longer distributed in glass bottles. Most independent filmmakers rely on film festivals to get their films noticed and sold for distribution. In the UK, milk can be delivered daily by a milkman who travels his local milk round (route) using a battery-powered milk float, although this is becoming less popular as a result of supermarkets selling milk at cheaper prices. However, while the means of production may be democratized, financing, distribution, and marketing remain difficult to accomplish outside the traditional system.

Prior to the widespread use of plastics, milk was often distributed to consumers in glass bottles, and before that in bulk that was ladled into the customer's container. Filmmakers can conceivably shoot and edit a movie, create and edit the sound and music, and mix the final cut on a home computer. People buy it chilled at grocery or convenience stores or similar retail outlets. Since the introduction of DV technology, the means of production have become more democratized. In many countries milk used to be delivered to households daily, but economic pressure has made milk delivery much less popular, and in many areas daily delivery is no longer avialable. Technologies such as DVDs, IEEE 1394 connections and non-linear editing system pro-level software like Adobe Premiere Pro and Final Cut Pro, and consumer level software such as Final Cut Express and iMovie make movie-making relatively inexpensive. Because of the perishable nature of milk, expeditious distribution is desirable. Both production and post-production costs have been significantly lowered; today, the hardware and software for post-production can be installed in a commodity-based personal computer.

http://www.notmilk.com/kradjian.html. But the advent of consumer camcorders in 1985, and more importantly, the arrival of high-resolution digital video in the early 1990s, have lowered the technology barrier to movie production significantly. This article, published by PETA, highlights some of the debate. Film requires expensive lighting and post-production facilities. Also there has been some controversy over whether or not humans, or any other mammals, are designed to consume milk after infancy. The cost of 35mm film is outpacing inflation: in 2002 alone, film negative costs were up 23%, according to Variety. The following studies are used to support this position:. Until the advent of digital alternatives, the cost of professional film equipment and stock was also a hurdle to being able to produce, direct, or star in a traditional studio film.

Overconsumption of Cow's milk is argued to be unhealthy primarily due to its fat and cholesterol content. Films with unknowns, particularly in lead roles, are also rarely produced. [2]. An unproven director is almost never given the opportunity to get his or her big break with the studios unless he or she has significant industry experience in film or television. Overweight individuals who drink milk may benefit from decreased risk of insulin resistance and type 2 diabetes. in 2000 were joint ventures, up from 10% in 1987). Studies show possible links between low-fat milk consumption and reduced risk of arterial hypertension, coronary heart disease, and obesity. The problem is exacerbated by the trend towards co-financing (over two-thirds of the films put out by Warner Bros.

A serving (1 cup or 250 ml) of 2%-fat milk contains 285 mg of calcium, which represents 22% to 29% of the daily recommended intake (DRI) of calcium for an adult, depending on the age, 8 grams of protein, and a number of other nutrients (either naturally or through fortification):. On the business side, the costs of big-budget studio films also leads to conservative choices in cast and crew. Raw Milk Versus Pasteurized Milk. Experimental elements in theme and style are inhibitors for the big studios. The resulting pasteurized product is said to contribute to its own indigestability, be less nutritious, and turn rancid (as opposed to sour) with age. Creatively, it was becoming increasingly difficult to get studio backing for experimental films. Those preferring raw milk argue that the pasteurization process also kills beneficial microorganisms and important nutritional constituents. Creative, business, and technological reasons have all contributed to the growth of the indie film scene in the late 20th and early 21st century.

South Australia has the highest consumption of flavoured milk per person, where Farmers Union Iced Coffee outsells Coca-Cola, a success shared only by Inca Kola in Peru and Irn-Bru in Scotland. An independent film (or indie film) is a film initially produced without financing or distribution from a major movie studio. Chocolate-flavored milk has been sold for many years, followed recently by other flavors of milk and cream. Filmmaking also takes place outside of the Hollywood studio system, and is commonly called independent filmmaking. Milk often has flavoring added to it for better taste or as a means of improving sales. Crew are distinguished from cast, the actors who appear in front of the camera or provide voices for characters in the film. Milk, sold commercially in countries where the cattle (and often the people) live indoors, commonly has vitamin D added to it to make up for lack of exposure to UVB radiation. A film crew is a group of people hired by a film company for the purpose of producing a film or motion picture.

This mechanically reduces the size of the fat globules, so that they will not separate out into a cream layer. The third year, post-production and distribution. A complementary process for commercial milk is homogenization. The second year comprises preproduction and production. In many countries it is illegal to sell milk that is not pasteurized. The first year is taken up with development. Dairies print expiration dates on each container, after which stores will remove any unsold milk from their shelves. This production cycle typically takes three years.

Pasteurized milk is still perishable and must be stored cold by both suppliers and consumers. A typical Hollywood-style filmmaking Production cycle comprises five main stages:. Pasteurization kills many harmful microorganisms by heating the milk for a short time and then cooling it for storage and transportation. Filmmaking takes place all over the world using different technologies, styles of acting and genre, and is produced in a variety of economic contexts that range from state-sponsored documentary in China to profit-oriented movie making within the American studio system. Milk produced for commercial consumption usually undergoes several processes. However, a low-budget, independent film may be made with a skeleton crew, often paid very little. Half-and-half is used for creaming coffee and similar uses. Many Hollywood adventure films need computer generated imagery (CGI), created by dozens of 3D modellers, animators, rotoscopers and compositors.

In the United States, a blended mixture of half cream and half milk is often sold in smaller quantities and is called half-and-half. The nature of the film determines the size and type of crew required during filmmaking. The cream is often sold as a separate product with its own uses. Also, film quickly came to be used in education, in lieu of or in addition to lectures and texts. Upon standing, fresh milk has a tendency to separate into a high-fat cream layer on top of a larger, skim-milk layer. The Academy Awards (also known as The Oscars) are the most prominent film awards in the United States, providing recognition each year to films, ostensibly based on their artistic merits. Most dairies are local companies, as opposed to large or nationwide companies found in the southern hemisphere. Profit is a key force in the industry, due to the costly nature of filmmaking; yet many filmmakers strive to create works of lasting social significance.

In North America a dairy facility processes milk and products obtained from milk (dairy products), such as cream, butter, and cheese. Though the expense involved in making movies has led cinema production to concentrate under the auspices of movie studios, recent advances in affordable film making equipment have allowed independent film productions to flourish. Dairy farming has become such a large business that in many countries the process is highly automated, with farmers using machines that attach directly to the teats of the cow's udder to speed milking, and breeds of cattle, such as Holstein, specially bred for increased milk production. Whether the ten thousand plus features a year produced by the Valley porn industry should qualify for this title is the source of some debate. It is the most commonly consumed form of milk. Other regional centers exist in many parts of the world, and the Indian film industry (primarily centered around "Bollywood") annually produces the largest number of films in the world. In the Western world, cow's milk is extracted on an industrial scale for human consumption and industrial uses. In the United States today, much of the film industry is centered around Hollywood.

Some human populations (most notably Europeans) retain the ability to digest lactose into adulthood. Already by 1917, Charlie Chaplin had a contract that called for an annual salary of one million dollars. In humans, production of lactase can decline in adulthood, leading to an inability to digest milk; this is known as lactose intolerance. Dedicated theaters and companies formed specifically to produce and distribute films, while motion picture actors became major celebrities and commanded huge fees for their performances. Lactose in milk is digested with the help of the enzyme lactase. Other pictures soon followed, and motion pictures became a separate industry that overshadowed the vaudeville world. Factors such as the type of protein; the proportion of protein, fat, and sugar; the levels of various vitamins and minerals; and the size of the butterfat globules and the strength of the curd are among those than can vary.[1] For example:. The Oberammergau Passion play of 1898 was the first commercial motion picture ever produced.

The composition of milk differs widely between species. In each country, they would normally add new, local scenes to their catalogue and, quickly enough, found local entrepreneurs in the various countries of Europe to buy their equipment and photograph, export, import and screen additional product commercially. . Upon seeing how successful their new invention, and its product, was in their native France, the Lumieres quickly set about touring the Continent to exhibit the first films privately to royalty and publicly to the masses. It can reduce the risk of many diseases in both mother and baby. The making and showing of motion pictures became a source of profit almost as soon the process was invented. The early lactation milk is known as colostrum, and carries the mother's antibodies to the baby. They also tend to be affiliated with colleges or universities.

Human milk is fed to infants through breastfeeding, either directly or by the female expressing her milk to be saved and fed later. Rather than write for newspaper or appear on television their articles are published in scholarly journals, or sometimes in up-market magazines. It can also be used to mean:. These film critics try to come to understand why film works, how it works, and what effects it has on people. It is also processed into dairy products such as cream, butter, yoghurt, ice-cream, gelato, cheese, casein, whey protein, lactose, condensed milk, powdered milk, and many other food-additive and industrial products. This work is more often known as film theory or film studies. The female ability to produce milk is one of the defining characteristics of mammals and provides the primary source of nutrition for newborns before they are able to digest more diverse foods. It is argued that journalist film critics should only be known as film reviewers, and true film critics are those who take a more academic approach to films.

Milk most often means the nutrient fluid produced by the mammary glands of female mammals. However, this usually backfires as reviewers are wise to the tactic and warn the public that the film may not be worth seeing and the films often do poorly as a result. The milk has dehydrated and become hard and chalky). Conversely, there have been several films in which film companies have so little confidence that they refuse to give reviewers an advanced viewing to avoid widespread panning of the film. Dry (beyond use. Others note that positive film reviews have been shown to spark interest in little-known films. A period of aromatic decay sets in accompanied by mould). However, the cataclysmic failure of some heavily-promoted movies that were harshly reviewed, as well as the unexpected success of critically praised independent movies indicates that extreme critical reactions can have considerable influence.

Coagulation (beyond use. Some claim that movie marketing is now so intense and well financed that reviewers cannot make an impact against it. Curdling (separation of curd and whey will occur but may still be consumable). The impact of reviewer on a film's box office performance is a matter of debate. Milk is still consumable at this stage). Poor reviews will often deign a film to obscurity and financial loss. Rancid (also called "on the turn". For prestige films such as most dramas, the influence of reviews is extremely important.

Reindeer. The plot summary and description of a film that makes up the majority of any film review can still have an important impact on whether people decide to see a film. Water buffalo. Mass marketed action, horror, and comedy films tend not to be greatly affected by a critic's overall judgement of a film. Yaks. Despite this, critics have an important impact of films, especially those of certain genres. Camels (including the South American camelids). Normally they only see any given film once and have only a day or two to formulate opinions.

Donkeys. Film critics working for newspapers, magazines, and broadcast media mainly review new releases. Horses. In general this can be divided into academic criticism by film scholars and journalistic film criticism that appears regularly in newspapers and other media. Goats. Film criticism is the analysis and evaluation of films. Sheep. More recent analysis has given rise to psychoanalytical film theory, structuralist film theory, feminist film theory and others.

Skim (no fat). Classical film theory provides a structural framework to address classical issues of techniques, narrativity, diegesis, cinematic codes, "the image", genre, subjectivity, and authorship. 1/2 % (very low fat). Film theory seeks to develop concise, systematic concepts that apply to the study of film/cinema as art. 1 % (low fat). Digital technology has been the driving force in change throughout the 1990s and into the 21st Century. 2 % (reduced fat). New Hollywood, French New Wave and the rise of film school educated, independent filmmakers were all part of the changes the medium experienced in the latter half of the 20th Century.

Whole varieties. The 1950s, 60s and 70s saw changes in the production and style of film. Skimmed (about 0.1% fat). By the end of the 1960s, color had become the norm for film makers. Semi-skimmed ("reduced fat" or "low fat", about 1.5-1.8% fat). But as color processes improved and became as affordable as black-and-white film, more and more movies were filmed in color after the end of World War II, as the industry in America came to view color an essential to attracting audiences in its competition with television, which remained a black-and-white medium until the mid-60s. Full cream (or "whole" in North America, about 3.25% fat). The public was relatively indifferent to color photography as opposed to black-and-white.

The bag is then placed in a plastic jug and the corner cut off before the milk is poured. While the addition of sound quickly eclipsed silent film and theater musicians, color was adopted more gradually. South Africa: Commonly sold in 1 litre bags. The next major step in the development of cinema was the introduction of color. Most UHT-milk is packed in 1 litre paper containers with a sealed plastic spout. These sound films were initially distinguished by calling them "talking pictures", or talkies. Australia and New Zealand: Distributed in a variety of sizes, most commonly in Tetra Paks for up to 1 litres, and plastic screw-top bottles beyond that. In the 1920s, new technology allowed filmmakers to attach to each film a soundtrack of speech, music and sound effects synchronized with the action on the screen.

United Kingdom: Most stores stock the equivalents of old Imperial sizes: 568 ml (1 pint), 1.136 l (2 pints), 2.273 l (4 pints) or, rarely, a combination including both metric and imperial sizes). Murnau continued to advance the medium. Parts of Europe: Sizes of 500 millilitres, 1 litre (the most common), 2 litres and 3 litres are commonplace. W. 4 litre plastic jugs are also available. However in the 1920s, European filmmaker’s such as Sergei Eisenstein and F. Canada: A 1 1/3 litre plastic bag (sold as 4 litres in 3 bags) is the most common, while 2 litre, 1 litre, 500 millilitre, and 250 millilitre cartons are also available. The rise of European cinema was interrupted by the breakout of World War I while the film industry in United States flourished with the rise of Hollywood.

The US single-serving size is usually the half-pint (about 240 ml). By the early 1920s, most films came with a prepared list of sheet music for this purposes, with complete film scores being composed for major productions. customary units) of rigid plastic or, occasionally for sizes less than a gallon, waxed cardboard. Rather than leave the audience in silence, theater owners would hire a pianist or organist or a full orchestra to play music fitting the mood of the film at any given moment. United States: Commonly sold in gallon, half-gallon and quart containers (U.S. Other techniques such as camera movement were realized as effective ways to portray a story on film. A review published by the World Cancer Research Fund and the American Institute for Cancer Research states that at least 11 human population studies have linked dairy product consumption and prostate cancer. The scenes were later broken up into multiple shots of varying sizes and angles.

There is no evidence that any such problem is specific to milk. Films began stringing scenes together to tell narratives. A study suggests a correlation between high calcium intake and prostate cancer.[10]. Around the turn of the 20th Century, films began developing a narrative structure. [8][9]. Motion pictures were purely visual art up to the late 1920s, but these innovative silent films had gained a hold on the public imagination. Two studies show a correlation between high galactose consumption, and high rates of ovarian cancer. Early motion pictures were static shots that showed an event or action with no editing or other cinematic techniques.

A February 2005 study found a positive association between acne and the consumption of whole milk, skim milk, and other dairy products in high-school-age women.[7]. These reels, so exhibited, came to be known as "motion pictures". Researchers were surprised by their conclusion that weight gain was associated with dietary calcium and low-fat or skim milk, but not dairy fat.[6]. By the 1880s, the development of the motion picture camera allowed the individual component images to be captured and stored on a single reel, and led quickly to the development of a motion picture projector to shine light through the processed and printed film and magnify these "moving picture shows" onto a screen for an entire audience. A study published in June 2005 suggests that consumption of milk by 9- to 14-year-old children is associated with weight gain, although the researchers identify that excessive calorie intake is the cause rather than dairy specific factors. Early versions of the technology sometimes required the viewer to look into a special device to see the pictures. Critics of milk claim that plant-based sources of calcium are preferable, on the grounds that animal proteins in milk causes leaching or excretion of calcium from bones.[5] Such critics refute the claim that milk prevents osteoporosis and make the counterclaim that milk, in fact, contributes to that disease. With the development of celluloid film for still photography, it became possible to directly capture objects in motion in real time.

Studies have failed to associate high calcium intakes with lower risk of hip and forearm fractures in men[3] or women[4]. Naturally, the images needed to be carefully designed to achieve the desired effect — and the underlying principle became the basis for the development of film animation. Critics dispute the claim that drinking large amounts of milk can reduce the risk of bone fractures, especially in the elderly. These machines were outgrowths of simple optical devices (such as magic lanterns), and would display sequences of still pictures at sufficient speed for the images on the pictures to appear to be moving, a phenomenon called persistence of vision. Certain ethnic groups may be more susceptible to these effects. Mechanisms for producing artificially created, two-dimensional images in motion were demonstrated as early as the 1860s, with devices such as the zoetrope and the praxinoscope. For those individuals, milk may induce symptoms such as cramping, bloating, gas, and diarrhoea. .

Up to 70% of humans have an incomplete ability to digest milk, lactose intolerance. Films are also artifacts created by specific cultures, which reflect those cultures, and, in turn, affect them. Low-fat and non-fat forms of milk may mitigate any such risk. Any film can become a worldwide attraction, especially with the addition of dubbing or subtitles that translate the dialogue. Some milk is rich in saturated fat, which studies have linked to increased risk of atherosclerosis and coronary heart disease. The visual elements of cinema need no translation, giving the motion picture a universal power of communication. Conjugated linoleic acid - beneficial fatty acid that inhibits several types of cancer in mice, has been shown to kill human skin cancer, colorectal cancer and breast cancer cells in in vitro studies, and may help lower cholesterol and prevent atherosclerosis; only available in milk from grass-fed cows. Film is considered by many to be an important art form; films entertain, educate, enlighten and inspire audiences.

Thiamine - B-vitamin important for cognitive function, especially memory. Also of relevance is what causes the perception of motion — a psychological effect identified as beta movement. Selenium - cancer-preventive trace mineral. Flickering between frames is not seen due to an effect known as persistence of vision — whereby the eye retains a visual image for a fraction of a second after the source has been removed. Potassium and Magnesium - for cardiovascular health. They comprise a series of individual frames, but when these images are shown rapidly in succession, the illusion of motion is given to the viewer. Vitamin A - critical for immune function. Films are produced by recording actual people and objects with cameras, or by creating them using animation techniques and/or special effects.

Biotin and Pantothenic Acid - B vitamins important for energy production. Many other terms exist — motion pictures (or just pictures or "picture"), the silver screen, photoplays, the cinema, picture shows, flicks — and most commonly movies. Vitamin B12 and Riboflavin - necessary for cardiovascular health and energy production. The origin of the name comes from the fact that photographic film (also called filmstock) has historically been the primary medium for recording and displaying motion pictures. Iodine - a mineral essential for thyroid function. Film is a term that encompasses motion pictures as individual projects, as well as the field in general. Vitamins D and K - essential for bone health. Distribution.

Cow's milk contains, on average, 3.4% protein, 3.6% fat, and 4.6% lactose, and supplies 66 kcal of energy per 100 grams. Post-production. Human milk contains, on average, 1.1% protein, 4.2% fat, 7.0% lactose (a sugar), and supplies 72 kcal of energy per 100 grams. Production. Crop milk, the regurgitated substance pigeons feed their young. Preproduction. A non-animal substitute such as soy milk, rice milk, and almond milk. Development.

The white juice and the processed meat of the coconut in more-or-less liquid form, used especially in Thai, Indian (Kerala), and Polynesian cuisine.