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Home NEWS Science News Biology

A comprehensive look at cow’s milk

Bioengineer by Bioengineer
April 17, 2019
in Biology
Reading Time: 2 mins read
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Milk is a staple of the human diet, full of key nutrients such as protein, carbohydrates, fats, and vitamins. Cow’s milk in particular is one of the most-used dairy products globally, with over 800 million tons produced annually according to the United Nations Food and Agriculture Organization. Today, scientists report in ACS’ Journal of Agricultural and Food Chemistry a comprehensive, centralized database of all known bovine milk compounds.

Human milk consumption has played a key role in global economic and agricultural developments for over 10,000 years. Given its popularity, cow’s milk has been the subject of numerous scientific studies in recent history. There are thousands of known components in the liquid, but the data are scattered throughout the literature. And analyzing milk can be a complex undertaking, as the beverage can vary in amount of and identities of its constituent compounds, depending on the breed of cow, type of feed and other factors. Using targeted chemical analyses has provided a large amount of data on specific compounds, but none have been able to both fully identify and quantify the makeup of bovine milk. That’s why David Wishart and colleagues at the University of Alberta set out to perform a multi-tiered analysis that provides the most complete picture to date.

To build a database of bovine milk components, the researchers applied a combination of experimental technologies and literature text-mining. For their experimental work, they assessed commercially purchased skim, 1 percent, 2 percent and whole milk with four different spectrometric technologies. They identified and measured various substances in milk, including metal ions, vitamins, organic acids and amino acids. For the computer analysis part of the study, the researchers used a series of digital text-mining tools to find published chemical information on dairy compounds. The data from the project are freely available at the Milk Composition Database. More than 2,300 metabolite entries are in the database, and over 160 of these substances were reported on for the first time in cow’s milk.

###

The authors acknowledge funding from the Canadian Institutes of Health Research, Alberta Innovates-Bio Solutions, Alberta Livestock and Meat Agency, Genome Alberta and Genome Canada.

The paper’s abstract will be available on April 17 at 8 a.m. Eastern time here:
https://pubs.acs.org/doi/10.1021/acs.jafc.9b00204

The American Chemical Society, the world’s largest scientific society, is a not-for-profit organization chartered by the U.S. Congress. ACS is a global leader in providing access to chemistry-related information and research through its multiple databases, peer-reviewed journals and scientific conferences. ACS does not conduct research, but publishes and publicizes peer-reviewed scientific studies. Its main offices are in Washington, D.C., and Columbus, Ohio.

To automatically receive news releases from the American Chemical Society, contact [email protected].

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Katie Cottingham
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Tags: Chemistry/Physics/Materials SciencesFertilizers/Pest ManagementFood/Food ScienceNutrition/NutrientsZoology/Veterinary Science
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