AMINO-ACID HYDROLYSATE FROM CRAB PROCESSING WASTE

被引：19

作者：

JASWAL, AS

机构：

[1] New Brunswick Dep of Agriculture, Fredericton, New Brunswick, E3B 5H1

来源：

JOURNAL OF FOOD SCIENCE | 1990年 / 55卷 / 02期

关键词：

D O I：

10.1111/j.1365-2621.1990.tb06768.x

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

Variables affecting acid hydrolyses were investigated for their efficacy in producing high quality amino acid hydrolysates from crab waste protein for its potential use in specialized animal feed and other food products. In a preliminary trial, 5N HCl was found to be a suitable hydrolyzing agent based on the presence of nihydrin‐positive substances. Amino acid yields from a 12 hr hydrolysis time varied from about 28–31%, increased marginally to 29–32% with 24 hr of hydrolysis, but decreased with hydrolysis time in excess of 24 hr. Depending upon hydrolysis time, approximately 42–44% of the total amino acids were essential amino acids: principally leucine, arginine, valine, and threonine. The remaining nonessential amino acid fraction was composed mainly of glutamic acid, aspartic acid and glycine. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：379 / &

共 15 条

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