食品科学 ›› 2010, Vol. 31 ›› Issue (2): 63-66.doi: 10.7506/spkx1002-6630-201002015

• 工艺技术 • 上一篇    下一篇

酶法提取葡萄籽中蛋白质工艺优化

仵昱舟,冯翠萍*   

  1. 山西农业大学食品科学与工程学院
  • 收稿日期:2009-03-03 出版日期:2010-01-15 发布日期:2010-12-29
  • 通讯作者: 冯翠萍 E-mail:ndfcp@163.com

Optimization of Enzymatic Extraction of Protein from Grape Seeds

WU Yu-zhou,FENG Cui-ping*   

  1. (College of Food Science and Technology, Shanxi Agricultural University, Taigu 030801, China)
  • Received:2009-03-03 Online:2010-01-15 Published:2010-12-29
  • Contact: FENG Cui-ping* E-mail:ndfcp@163.com

摘要:

采用酶法对葡萄籽中蛋白质进行提取,对蛋白酶用量、提取温度、料液比、pH 值、提取时间5 个因素进行研究。采用正交试验对最佳工艺进行探讨。结果表明,葡萄籽蛋白的等电点3.8;各因素对酶法提取葡萄籽蛋白的影响次序为料液比>蛋白酶用量>提取时间>提取温度,其中料液比对提取率的影响达到了显著水平;酶法提取葡萄籽蛋白的最佳工艺参数:蛋白酶用量60U/g、提取温度40℃、料液比1:30(g/mL)、提取时间80min、pH7.5。在此最佳工艺下,葡萄籽蛋白提取率可达94%。

关键词: 葡萄籽蛋白质, 酶法提取

Abstract:

Enzymatic extraction was used for protein production from grape seeds as a byproduct of grape wine making. The optimal values of theological parameters including extraction temperature, liquid/solid ratio, pH value and extraction time were investigated using single factor method combined with orthogonal array design. Results showed that the above parameters had different effects on protein extraction in the following order of solid/liquid ratio > alcalase concentration > time > temperature and a significant effect of solid/liquid ratio was observed. A maximum protein yield of 94% was obtained under the optimal values of extraction parameter as follows: alcalase concentration 60 U/g, extraction temperature 40 ℃, solid/liquid ratio 1:30, extraction time 8 0 min, and pH 7.5. The protein obtained was characterized by pI 3.8.

Key words: grape seed protein, enzymatic extraction

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