食品科学 ›› 2001, Vol. 22 ›› Issue (10): 43-45.

• 工艺技术 • 上一篇    下一篇

葡萄籽中多酚类物质的提取及其对油脂的抗氧化作用

  张峻, 吉伟之, 齐欣   

  1. 天津市园艺工程研究所
  • 出版日期:2001-10-15 发布日期:2012-02-15

Study on Extraction of Polyphenols from Grape Seeds and Extract Inhibition of Oil Oxidation

   Zhang-Jun, JI  Wei-Zhi, QI  Xin   

  • Online:2001-10-15 Published:2012-02-15

摘要: 研究了葡萄籽中多酚类物质的提取工艺,并考察了该提取物对食用油脂的抗氧化作用。结果表明,对含水率8%的葡萄籽,60%~80%的丙酮溶液为最佳提取剂。在20℃~50℃的范围内,温度对提取率无明显影响。进行一次或两次提取操作时,料液比以1∶20,每次浸提30min为宜;提取三次时,最佳料液比为1∶5。该葡萄籽提取物对葡萄籽油及猪油均有着较好的抗氧化作用,且效果优于BHT。

关键词: 葡萄籽, 多酚类物质, 提取, 抗氧化性

Abstract: The extraction of polyphenols from grape seeds was studied and the antioxidant activity of the extrct towards edible oils was evaluated as well.It was found that,the acetone-water(80:20 to 60:20)mixture was the optimum extractant for the grape seeds with moisture content of 8%.The extraction yield of polyphenols showed no obvious increase from 20℃ to 50℃.The ratio of grape seeds to extractant was optimal at 1∶20 for one extraction or twice but 1∶5 for three times of extraction with 30min each.The oven-storage experiment indicated that the grape seeds extract showed stronger protection for lard and grape seed oil from oxidation than the BHT.

Key words:  , Grape seeds Polyphenols Extract Antioxidation