摘要
以氨基态氮、可溶性蛋白质含量和可溶性固形物含量为指标,研究了食品添加剂对南极大磷虾(Euphausia superba)蛋白自溶的影响。结果显示,氯化镁和柠檬酸对南极大磷虾蛋白的自溶有一定的促进作用,两者作用显著的添加量分别为2%和0.2%,结合可溶性蛋白质和可溶性固形物指标,促进作用最显著的为添加0.2%柠檬酸;葡萄糖和氯化钙对南极大磷虾蛋白的自溶影响不大;氯化钾、氯化钠、EDTA-2Na对南极大磷虾蛋白的自溶有一定的抑制作用,氯化钠和EDTA-2Na的抑制作用相近,但优于氯化钾,三者作用显著的添加量分别为2%、4%、0.05%,考虑到可溶性蛋白质含量,抑制作用最显著为添加0.05%EDTA-2Na。
Based on the testing indexes of Amino Nitrogen Contents（ANC）,Soluble Protein Concentration（SPC） and Total Soluble Solids（TSS）,influences of food addictive on protein autolysis of Euphausia superba were studied.Results showed that effects of magnesium chloride and citric acid on protein autolysis of Euphausia superba had certain simulative effect.Both optimum substitutabilities were 2% and 0.2%,respectively.Combined soluble protein concentration and total soluble solid indexes,the optimum was adding 0.2% citric acid.Glucose and calcium chloride protein autolysis of Euphausia superba had little impact on protein autolysis;Potassium chloride,sodium chloride and EDTA-2Na had certain inhibition on protein autolysis of Euphausia superba,and inhibition of sodium chloride and EDTA-2Na was similar,both better than potassium chloride.The most suitable adding amount of for the three were 2%,4%,and 0.05%.Considering the soluble protein concentration,the best for autolysis was adding 0.05% EDTA-2Na.
出处
《海洋渔业》
CSCD
北大核心
2011年第3期346-351,共6页
Marine Fisheries
基金
国家高技术研究发展计划项目(2011AA090801)
中央级公益性科研院所基本科研业务费专项资金(中国水产科学研究院东海水产研究所)资助项目(2009T05)
关键词
食品添加剂
南极大磷虾
自溶
Food addictive
Euphausia superba
Autolysis
