THE COMPOSITIONS OF SOME PEPTIDES PRODUCED BY AN ENZYMIC HYDROLYSIS OF WHEAT GLIADIN
Tóm tắt
Wheat gliadin was hydrolyzed extensively by treatment with pepsin and then by trypsin. A large number of peptides were produced as well as small amounts of some amino acids, thus indicating a substantial amount of hydrolysis of gliadin by the enzymes. Five peptides were obtained crystalline and two of these constitute 11.5% and 1.2% of gliadin, respectively. Their structures have been partly determined. The results indicate that wheat gliadin contains (Asp.Asp) bonds and at least 1.9% of the glutamic acid is present as glutamylglutamic acid.
Từ khóa
Tài liệu tham khảo
BILINSKI W. B., 1958, Cereal Chem., 35, 66
MOORE W. H., 1954, Chem., 211, 907
HOLME D. R., 1959, Cereal Chem., 36, 321