ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Glycerol monochlorohydrin, (3-chloro-1,2-propanediol), which occurs in chemical hydrolysates of proteins, reacted with amino acids in model aqueous solutions to form the corresponding glycerylamino acids, i.e. N-(2,3-dihydroxypropyl)-amino acids. N-(2,3-dihydroxy-propyl)-derivatives of 15 amino acids were prepared and analyzed by gas chromatography and gas chromatography-mass spectrometry. No N-(2,3-dihydroxypropyl)-amino acid was detected in a freshly produced commercial soybean hydrolysate. Amounts up to ∼1 mg-kg-1 of N-(2,3-dihyproxypropyl)-serine and -threonine were found in a stored hydrolysate. Higher amounts of N-(2,3-dihydroxypropyl)-amino acids (up to about 10 mg-kg-1) were found in the alkaline treated and with 3-chloro-1,2-propanediol fortified hydrolysate. N-(2,3-dihydroxypropyl)-amino acids represent a new class of amino acids not previously reported in foodstuffs.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1991.tb07995.x
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