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食品研究与开发:2017,38(16):82-85
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莲藕汁的酶法水解与稳定性研究
吕艳,王辰*
(长江大学 生命科学学院,湖北 荆州 434025)
Enzymatic Hydrolysis and Stability of Lotus Root Juice
Lü Yan, WANG Chen*
(College of Life Science, Yangtze University, Jingzhou 434025, Hubei,China)
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投稿时间:2017-04-05    
中文摘要: 研究莲藕的出汁率和莲藕汁的稳定性。 通过单因素与正交试验确定莲藕汁的酶解工艺,α-淀粉酶的最优作 用条件为:α-淀粉酶用量 10 U/g,酶处理温度 70 ℃,处理时间 60 min,pH 为 6.2,莲藕出汁率为 57.8 %;研究了莲藕汁的悬浮稳定性,用浊度差△E 作为考核稳定性的指标,在 0.1 %黄原胶,0.04 %海藻酸钠,0.06 % CMC-Na 复配条件下, 莲藕汁浊度差△E 值最小,产品无分层现象。
中文关键词: 莲藕汁  α-淀粉酶  酶法水解  稳定性
Abstract:The juice yield of lotus root and stability of lotus root juice were researched. By single factor and or- thogonal experiments, the enzymatic hydrolysis technology of lotus root juice were determined. The hydrolysis best conditions: the α-amylase for 10 U/g,the temperature 70 ℃,the hydrolysis time 60 min and pH 6.2, juice yield of lotus root was 57.8 %. The stability of lotus root juice were researched by using indicators for assessing stability with △E, 0.10 % CMC-Na, 0.04 % xanthan gum and 0.06 % sodium alginate were added,△E value was minimum. lotus root juice did not occur after standing for a long time.
文章编号:201716018     中图分类号:    文献标志码:A
基金项目:湖北省自然科学基金项目(2010CHB01801);湖北省新农村发展研究院(长江大学)开放基金项目(2014)
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