摘要
对比分析乙醇浓度和反应时间对四种蛋清蛋白酶解物清除DPPH自由基活性的影响情况。试验研究结果表明:以50%乙醇为溶剂时蛋清蛋白酶解物的清除活性较高,反应时间对蛋清蛋白酶解物清除活性影响不大;由碱性蛋白酶2709在适当条件下酶解1 h的蛋清蛋白酶解物对DPPH具有较高的清除活性,其清除率为56.78%。
Effects of ethanol concentration and reaction time were compared on DPPH free radical scavenging activity of egg white protein hydrolysates in this paper. The experimental results showed that： the egg white protein hydrolysates with 50% ethanol as solvent showed a higher scavenging activity and the reaction time had little effect on the scavenging activity of them; The egg white protein hydrolysates by Alcalase 2709 in one hour under the optimum condition had a higher scavenging activity on DPPH up to 56.78%.
出处
《食品工业》
北大核心
2009年第3期1-3,共3页
The Food Industry
基金
国家"863"项目计划项目(2007AA10Z329)
