THE KINETIC STUDIES ON THE CONTENT OF LIMITING AMINO ACIDS DURING RICE AGING
- VernacularTitle:稻谷陈化过程中限制性氨基酸变化的动力学研究
- Author:
Xia YE
;
Xuegang LI
;
Yi ZHANG
- Publication Type:Journal Article
- Keywords:
rice;
limiting amino acid;
aging
- From:
Acta Nutrimenta Sinica
1956;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the changes of rice protein and its limiting amino acids in storage and provide theoretical basis for utilizing and improving its nutritive value. Methods:During rice aging , the kinetic properties of Lys and Trp were studied. Results:The changes of Lys conformed to kinetics first-class reaction, lnk=ln(2.05?107)-6929.3/T and Ea(activation energy)=57.61 kJ/mol, while those of Trp conformed to first-class reaction, lnk=ln(1.18?05)-5426.9/T and Ea=45.12 kJ/mol. Conclusion:Both Lys and Trp contents decreased significantly in storage, Trp worse than Lys. The nutritive value of rice protein then decreased.
