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淡水小龙虾下脚料酶解制备抗氧化肽的工艺研究_陈晓明.pdf

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安徽农业科学,Journal of Anhui Agri. Sci. 20 11 ,39 (22):13530 - 13532 ,13632 责任编辑 郑丹丹 责任校对 傅真治 淡水小龙虾下脚料酶解制备抗氧化肽的工艺研究 , , 陈晓明 张晓娜 曹艺陆 ( , 22300 1) 淮阴工学院生命科学与化学工程学院 江苏淮安 [ ] 。 [ ] , 摘要 目的研究以淡水小龙虾下脚料为原料酶解制备龙虾抗氧化肽的工艺 方法 以酶水解产物清除羟自由基能力为指标 采用 。 [ ] 单因素和响应面试验考察了制备淡水小龙虾抗氧化肽的最佳蛋白酶种类及其酶解工艺 结果 碱性蛋白酶是制备淡水小龙虾抗氧化 ; : 1. 0∶ 1. 0 (g∶ ml)、 59 ℃ 、pH 8. 9 、 2 000 U/ g , 3 h。 [ ] 肽的优选蛋白酶 最佳酶解工艺条件为 料液比 酶解温度 加酶量 水解时间 结论 此工 , 74 . 66% 。 艺所得酶解液对羟自由基的清除效果最好 清除率为 ; ; ; ; 关键词 龙虾下脚料 抗氧化肽 还原力 蛋白酶 酶解 中图分类号 TS 254 . 9 文献标识码 A 文章编号 0517 - 6611 (2011)22 - 13530 - 03 Research on the Preparation Technology of the Antioxidant Peptide from the Waste of Freshwater Procambarus clarkia with Enzymatic Hydrolysis CHEN Xiao-ming et al (College of Life Science and Chemical Engineering ,Huaiyin Institute of Technology ,Huaian ,Jiangsu 223001) Abstract [Objective]The preparation technique of the antioxidant peptide from the waste of Procambarus clarkia as raw material with enzymat- ic hydrolysis was studied. [Method]The best type of protease and its digestion process for the preparation of the antioxidant peptide from the waste of Procambarus clarkia were analyzed with the design of single factor and the method of response surface experiment ,in which ,the ability of enzymatic hydrolysates in scavenging hydroxyl radical was taken as the index. [Result]The alkaline protease was the best one in the preparation of the antioxidant peptide from the waste of Procambarus clarkia and the optimal condition was :the ratio of raw material to liquid was 1. 0∶ 1. 0 (g∶ ml);th
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