Home > Iowa Academy of Science > Journals & Newsletters > Proceedings of the Iowa Academy of Science > Volume 41 (1934) > Annual Issue
Document Type
Research
Abstract
The utilization of tryptophane for growth in the rat can be effectively prevented by benzoylation, but not by acetylation or by esterification with ethyl alcohol. For the purpose of extending these observations, the phenylacetyl, phenylpropionyl, and propionyl derivatives of tryptophane, as well as the phenyl and benzyl ester hydrochlorides, were prepared and fed as supplements in a diet deficient in tryptophane. Of these derivatives, only phenylacetyltryptophane failed to produce growth. Presumably all of the others undergo enzymatic cleavage and hence can be utilized as well as free tryptophane for purposes of growth.
Publication Date
1934
Journal Title
Proceedings of the Iowa Academy of Science
Volume
41
Issue
1
First Page
165
Last Page
165
Copyright
©1934 Iowa Academy of Science, Inc.
Language
en
File Format
application/pdf
Recommended Citation
Berg, Clarence P. and Hanson, H. Everett
(1934)
"The Availability of Tryptophane Derivatives for Supplementing Diets Deficient in Tryptophane,"
Proceedings of the Iowa Academy of Science, 41(1), 165-165.
Available at:
https://scholarworks.uni.edu/pias/vol41/iss1/46