论文编号:SW052 论文字数:8658,页数:20 摘要:固定化酶是酶工程的核心,它有利于实现酶的重复使用及产物与酶的分离。大豆蛋白经酶水解后往往产生一种令人难以接受的苦味,许多研究者已研究确认数种低分子疏水性的苦味肽,是其产生苦味的主要原因。在酶催化水解反应中,诸多因素影响着反应的进行,其中以初始pH,温度,海藻酸钠浓度、固定化时间、底物浓度、凝胶珠中酶量与海藻酸钠量比对反应速度影响较大,必须确定适当的参数来满足较快水解的要求。本实验对以海藻酸钠为载体包埋固定化中性蛋白酶水解大豆蛋白进行了比较研究,确定了最佳工艺条件为初始pH8.0,温度40℃,海藻酸钠浓度为3%,底物浓度为14%,凝胶珠中酶量与海藻酸钠量比为1:3,固定化时间为2.5h。 Preliminary study on hydrolyzed protein of Soy Protein with immobilized enzyme Abstract:The immobilized enzyme is enzyme project core,its separation beneficial to realizing enzyme repetition usage and outcome with the enzyme.The experiment about with sodium alginate for carrier embed fossilization neutral enzyme hydrolyze soy protein has carried out comparison research, and fix-rization to affecting the immobilized enzyme's leading the factor composing in reply a immobilized enzymatic activity to have been in progress studying.Pass the method discussing different immobilized fabrication,ascertain optimum immobilized method.The experiment right to alginate as a carrier neutral Immobilization of soybean protein hydrolysis conducted a comparative study,determine the optimal concentration of sodium alginate 3%,Optimal substrate concentration 14% ,enzyme gel beads with sodium alginate volume ratio of 1 : 3,most suitable for a fixed time of 2.5 h . 目 录
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Tags:固定化 水解 蛋白 初步 研究 | 2011-03-31 14:32:32【返回顶部】 |