Kjeldahl test
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Kjeldahl method (test) — Kjel·dahl method (test) (kyelґdahl) [Johan Gustav Christoffer Kjeldahl, Danish chemist, 1849–1900] see under method … Medical dictionary
Chemical test — In chemistry, a chemical test is a qualitative or quantitative procedure designed to prove the existence of, or to quantify, a chemical compound or chemical group with the aid of a specific reagent. A presumptive test is specifically used in… … Wikipedia
Protein (nutrient) — This article is about protein as a nutrient. For protein as a class of molecule, see protein. For other uses, see bodybuilding supplement. Amino acids are the building blocks of protein. Proteins are polymer chains made of amino acids linked… … Wikipedia
Protein in nutrition — Proteins are broken down in the stomach during digestion by enzymes known as proteases into smaller polypeptides to provide amino acids for the organism, including the essential amino acids that the organism cannot biosynthesize itself. Aside… … Wikipedia
method — The mode or manner or orderly sequence of events of a process or procedure. SEE ALSO: fixative, operation, procedure, stain, technique. [G. methodos; fr. meta, after, + hodos, way] Abell Kendall m. a … Medical dictionary
Devarda's alloy — Identifiers CAS number 8049 11 4 Properties Density 5,79 g·cm 3 … Wikipedia
Protein adulteration in the People's Republic of China — refers to the adulteration and contamination of several food and feed ingredients with inexpensive melamine and other compounds such as cyanuric acid, ammeline and ammelide. These adulterants can be used to inflate the apparent protein content of … Wikipedia
Chinese protein export contamination — was first identified after the wide recall of many brands of cat and dog food starting in March 2007 (the 2007 pet food recalls), and eventually involved the human food supply. The recalls in North America, Europe and South Africa came in… … Wikipedia
2008 Chinese milk scandal — For timeline of events in the contamination, see Timeline of the 2008 Chinese milk scandal. Stripped shelves in a supermarket in China as a result of the contamination (September 2008) The 2008 Chinese milk scandal was a food safety incident in… … Wikipedia
nitrogen group element — ▪ chemical elements Introduction any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… … Universalium
