食品研究与开发
食品研究與開髮
식품연구여개발
FOOD RESEARCH AND CEVELOPMENT
2015年
16期
97-100
,共4页
长白山松子%降血压肽%ACE%抑制率
長白山鬆子%降血壓肽%ACE%抑製率
장백산송자%강혈압태%ACE%억제솔
Changbai Mountain pine nuts%antihypertensive peptides%ACE%inhibitory activity
采用碱性蛋白酶对长白山松子分离蛋白进行酶解,以水解度和酶解物的ACE抑制率为考察指标,考察酶解pH、酶解温度、底物浓度、加酶量4个因素的影响,通过响应面(Box-Benhnken)组合优化试验,确定得到ACE抑制率最佳的条件为酶解pH8.9,酶解温度55℃,加酶量7500 U/g(以底物计),底物浓度2.5%,此时ACE抑制率为70.1%,水解度为17.5%,与模型预测值基本相符。
採用堿性蛋白酶對長白山鬆子分離蛋白進行酶解,以水解度和酶解物的ACE抑製率為攷察指標,攷察酶解pH、酶解溫度、底物濃度、加酶量4箇因素的影響,通過響應麵(Box-Benhnken)組閤優化試驗,確定得到ACE抑製率最佳的條件為酶解pH8.9,酶解溫度55℃,加酶量7500 U/g(以底物計),底物濃度2.5%,此時ACE抑製率為70.1%,水解度為17.5%,與模型預測值基本相符。
채용감성단백매대장백산송자분리단백진행매해,이수해도화매해물적ACE억제솔위고찰지표,고찰매해pH、매해온도、저물농도、가매량4개인소적영향,통과향응면(Box-Benhnken)조합우화시험,학정득도ACE억제솔최가적조건위매해pH8.9,매해온도55℃,가매량7500 U/g(이저물계),저물농도2.5%,차시ACE억제솔위70.1%,수해도위17.5%,여모형예측치기본상부。
Pinus koraiensis Sieb.et Zucc protein isolate was hydrolyzed with alcalase to prepare antihypertensive peptides. Operating parameters such as pH, temperature, substrate concentration and enzyme dosage were optimized using response surface analysis based on degree of hydrolysis and ACE inhibitory rate. The optimum hydrolysis conditions for ACE inhibitory rate (70.1%) and degree of hydrolysis (17.5%) were found to be hydrolysis at 55℃, pH 8.9 for 3 h with an enzyme/substrate ratio of 7 500 U/g and substrate concentration of 2.5%, with the model prediction.