食品科学 ›› 2012, Vol. 33 ›› Issue (24): 142-146.doi: 10.7506/spkx1002-6630-201224029

• 工艺技术 • 上一篇    下一篇

酶法预处理硫酸软骨素原料除杂工艺优化

李利晓1,2,夏延斌1,2,*   

  1. 1.湖南农业大学食品科学技术学院,湖南长沙 410128;2.国家蔬菜加工技术研发分中心,湖南长沙 410128
  • 收稿日期:2011-09-27 修回日期:2012-11-21 出版日期:2012-12-25 发布日期:2012-12-12
  • 通讯作者: 李利晓 E-mail:lilixiaoy@126.com

Optimization of Enzymatic Pretreatment for Chondroitin Sulfate from Bovine Nose Cartilage

LI Li-xiao1,2,XIA Yan-bin1,2,*   

  1. 1. College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China;2. National R&D Branch Center for Vegetable Processing, Changsha 410128, China
  • Received:2011-09-27 Revised:2012-11-21 Online:2012-12-25 Published:2012-12-12
  • Contact: Li-Xiao LI E-mail:lilixiaoy@126.com

摘要:

选用胃蛋白酶处理牛鼻软骨,研究酶法预处理硫酸软骨素原料的除杂工艺。通过单因素和正交试验对酶解工艺进行优化,确定的最佳条件:酶解时间8h、酶解温度35℃、加酶量0.2%、pH2.5和料液比1:5(g/mL),在此条件下软骨得率、硫酸软骨素得率和蛋白质去除率,分别达到85.12%、28.98%和10.3%。

关键词: 牛鼻软骨, 预处理, 胃蛋白酶, 硫酸软骨素

Abstract:

The enzymatic pretreatment of bovine nose cartilage as a deproteinization step in the preparation of chondroitin sulfate was studied. Pepsin was found to be the best enzyme for the hydrolysis of bovine nose cartilage. Using an orthogonal array design, the optimum hydrolysis conditions were obtained as hydrolysis at 35 ℃ and initial pH 2.5 for 8 h with an enzyme load and 0.2% and a solid-to-solvent ratio of 1:5 (g/mL). Under these conditions, the yields of cartilage and chondroitin sulfate were 85.12% and 28.98% , respectively and the deproteinization rate was 10.3%.

Key words: bovine nose cartilage, pre-treatment, pepsin, chondroitin sulfate

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