食品科学 ›› 2004, Vol. 25 ›› Issue (2): 117-120.

• 工艺技术 • 上一篇    下一篇

葡萄籽中低聚原花青素提取条件研究

 赵文军, 吴雪萍, 王旭   

  1. 中国科学院新疆理化技术所
  • 出版日期:2004-02-15 发布日期:2011-10-24

Extraction of Oligomeric Proanthocyanidins from Grape Seeds

 ZHAO  Wen-Jun, WU  Xue-Ping, WANG  Xu   

  1. Xinjiang Institute of Physical and Chemical Technology, Chinese Academy of Science
  • Online:2004-02-15 Published:2011-10-24

摘要: 研究了葡萄籽中低聚原花青素的提取条件,考察了提取温度,时间,磷酸浓度对提取液总酚含量的影响,并对提取物的溶解性作了分析。结果表明:3%磷酸的乙酸乙酯-水溶液作提取剂,室温下搅拌提取10h的条件最适,所得产物颜色淡,水溶性好,其低聚原花青素提取率大于2.0%,总酚含量大于70%。

关键词: 葡萄籽, 提取, 低聚原花青素, 总酚含量

Abstract: The extraction of oligomeric proanthocyanidins(OPC) from grape seeds was studied in this paper. Some factors,including extracting time, extracting temperature and the concentration of phosphoric acid were studied. The optimal conditionswere: ethylacetate-water containing 3% phosphoric acid and stirring at room temperature for ten hours. The yield of oligomericproanthocyanidins was more than 2.0% and the polyphenolic content more than 70%. The sample was grayish and showed goodwater solubility.

Key words: grape seeds, extraction, oligomeric proanthocyanidins, total polyphenolic content