Affiliation:
1. School of Colour Chemistry, University of Bradford, Bradford 7, Yorkshire, Great Britain
Abstract
A number of amino acids in solution have been irradiated by ultraviolet light and the rate of yellowing measured. With the exception of cystine, the production of color depends on the presence of oxygen, while the decomposition of the amino acid takes place even in the absence of oxygen, although at a slower rate. Cystine produces color both in the presence and absence of oxygen. A number of ultraviolet-absorbing soluble proteins were found to "yellow" on irradiation even in the absence of oxygen. Based on the amino acid composition, it is postulated that the sulfur-containing amino acids plus tryptophan are responsible for the color produced. The degree of coloration cannot be correlated with any single amino acid.
Subject
Polymers and Plastics,Chemical Engineering (miscellaneous)
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献