摘要
以花生粕为原料,经Alcalase碱性蛋白酶水解,研究不同加酶量、底物浓度、酶解温度、酶解时间和酶解pH对花生粕水解液抗氧化性的影响。在单因素分析的基础上采用响应面分析方法对花生粕的酶解条件进行优化,以羟基自由基清除能力为考察指标,确定最佳的酶解条件为:加酶量11820U/g,底物浓度为7.52%,酶解温度为43.1℃,酶解时间为3.9h,酶解pH为8.47,羟基自由基清除能力为60.54%,在上述优化后的工艺条件下的验证实验测得羟基自由基清除能力为60.21%。
With the peanut meal as material,Alcalase enzyme was used to hydrolyze peanut meal to prepare antioxidative hydrolyzate. The effect of enzyme dosage, substrate concentration,temperature,time and pH on oxidation resistance of peanut meal hydrolyzate was investigated. Single factor experiments and response surface test were applied to analyze the factors. The contribution rate of factors was as follow： enzyme dosage 11820U/g, substrate concentration 7.52%, temperature 43.1℃, time 3.9h and pH8.47, hydroxyl radical scavenging capacity could reach 60.54%,at this optimization condition validation experiment measured hydroxyl radical scavenging capacity was 60.21%.
出处
《食品工业科技》
CAS
CSCD
北大核心
2013年第6期177-180,193,共5页
Science and Technology of Food Industry
关键词
花生粕
酶水解
羟基自由基清除能力
peanut meal
enzymatic hydrolysis
hydroxyl radical scavenging capacity
