ISSN:
1750-3841
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Free amino acids and related compounds in the nonprotein nitrogen (NPN) fraction of winged bean seeds and sprouts were quantitatively determined. The proportion of NPN to total nitrogen was low in the seeds (9%) and in the cotyledons of the sprouts (11%), and relatively high in the epicotyls of the sprouts (54%). About 6% and 40% NPN were attributable to free amino acid nitrogen in the seeds and the sprouts, respectively. The free amino acid profile of seeds was characterized by the presence of sizable amounts of γ-L-glutamyl-L-tyrosine and γ-L-glutamyl-L-phenylalanine, indicating similarities to that of soybean seeds. Accumulation of free amino acids, particularly nonprotein amino acids such as α-aminoadipic acid and γ-aminobutyric acid, were demonstrated in the sprouts. No canavanine was detected in either seeds or sprouts.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1365-2621.1985.tb10514.x
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