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PROTEIN CONTENT AND AMINO ACID COMPOSITION IN GROATS AND HULLS OF DEVELOPING OATS (Avena sativa)
Author(s) -
POMERANZ Y.,
SHANDS H. L.,
ROBBINS G. S.,
GILBERTSON J. T.
Publication year - 1976
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1976.tb01099.x
Subject(s) - avena , threonine , lysine , composition (language) , amino acid , chemistry , food science , aspartic acid , glutamic acid , biology , agronomy , biochemistry , enzyme , serine , linguistics , philosophy
Protein content and ammo acid composition were determined in groats and hulls of three oat cultivars harvested at four stages of development. Protein content was slightly higher in mature than in immature groats. In the hulls, protein content decreased during development to about one‐third the content of immature hulls. The large decrease in protein content of the hulls was accompanied by little change in amino acid composition. In the groats, however, there were consistent and large decreases in concentrations of lysine, threonine and aspartic acid and an increase in glutamic acid. The results suggest that in addition to deposition of storage protein in the groat, ammo acids are translocated from the hulls to the groats.