食品工业科技2013，Vol.34Issue(14)：142-147,155,7.
扫频超声处理对玉米醇溶蛋白酶解特性的影响
Effect of pretreatment with sweeping frequency ultrasound on zymohydrolysis characteristic of zein
摘要
Abstract
In order to explore the effect of sweeping frequency ultrasound (SFU) promoting zymohydrolysis reaction,improve the relative inhibitory activity(RIA) of hydrolysate to Angiotensin-I-Converting Enzyme (ACE),the SFU was used to treat zein.The One-factorial experiments were taked to search the best operating mode of SFU,pretreatment parameters of ultrasound and the optimal conditions of hydrolysis.With the optimal conditions of ultrasonic pretreatment and hydrolysis,we could find out that ACE inhibitory activity was 48.48％,DH was 11.20％.The IC50 value of hydrolysate was 3.77mg/mL,it decreased by 31.20％,compared with traditional enzymatic hydrolysis(without ultrasound treatment).The yield of product was 66.15％,compared with traditional enzymatic hydrolysis,it improved by 14.39％.These results proved that SFU could effectively promoted enzymatic hydrolysis of zein,and improved RIA of hydrolysate to ACE.关键词
扫频超声/玉米醇溶蛋白/酶解/ACE抑制活性Key words
sweeping frequency ultrasound/ zein/ enzymatic hydrolysis/ ACE inhibitory activity分类
轻工纺织引用本文复制引用
毛舒云,马海乐,任晓峰,骆琳..扫频超声处理对玉米醇溶蛋白酶解特性的影响[J].食品工业科技,2013,34(14):142-147,155,7.基金项目
国家自然科学基金(31071502) （31071502）
国家863计划(2013AA100203) （2013AA100203）
江苏省高校自然科学研究重大项目(12KJA550001). （12KJA550001）
