食品科学 ›› 2010, Vol. 31 ›› Issue (21): 72-75.doi: 10.7506/spkx1002-6630-201021016

• 基础研究 • 上一篇    下一篇

菜籽水解蛋白的组成及性质研究

王瑛瑶,魏翠平,栾 霞,张霜玉,杜传林   

  1. 国家粮食局科学研究院
  • 收稿日期:2010-05-13 修回日期:2010-09-25 出版日期:2010-11-15 发布日期:2010-12-29
  • 通讯作者: 王瑛瑶 E-mail:wyy@chinagrain.org
  • 基金资助:

    “十一五”国家科技支撑计划项目(2009BABD1B0305)

Chemical Composition and Functional Properties of Rapeseed Protein Hydrolysates Left after Aqueous Enzymatic Extraction of Oil

WANG Ying-yao,WEI Cui-ping,LUAN Xia,ZHANG Shuang-yu ,DU Chuan-lin   

  1. Academy of State Administration of Grain, Beijing 100037, China
  • Received:2010-05-13 Revised:2010-09-25 Online:2010-11-15 Published:2010-12-29
  • Contact: WANG Ying-yao E-mail:wyy@chinagrain.org

摘要:

对水酶法提油技术得到的菜籽水解蛋白的组成、物化性能及体外功能特性进行研究。菜籽水解蛋白主要由粗蛋白质、总糖和灰分组成,含量分别为54.95%、28.83%、14.82%,粗蛋白中疏水性氨基酸含量为37.21g/100g。菜籽水解蛋白具有良好的溶解性和高质量浓度下保持流动的特性。水解蛋白体外还原能力和清除自由基能力显著,具有体外抗氧化活性。

关键词: 菜籽水解蛋白, 组成, 物化性能, 抗氧化活性

Abstract:

The chemical composition, physico-chemical properties and in vitro functional properties of the rapeseed protein hydrolysates (RPHs) left after aqueous enzymatic extraction of oil were studied. The hydrolysates mostly consisted of protein, carbohydrate and ash, and the contents were 54.95%, 28.83% and 14.82%, respectively. The hydrophobic amino acid content was 37.21 g/100 g protein. The hydrolysates had an excellent solubility and lower viscosity at high concentration. Their reducing power and abilities to scavenge DPPH and hydroxyl free radicals were all obvious, indicating good antioxidant effect in vitro.

Key words: rapeseed protein hydrolysates, composition, physico-chemical properties, antioxidant activity

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