食品科学 ›› 2009, Vol. 30 ›› Issue (24): 141-143.doi: 10.7506/spkx1002-6630-200924029

• 工艺技术 • 上一篇    下一篇

落叶松中二氢槲皮素提取工艺研究

王 宇,王 遂*   

  1. 哈尔滨师范大学化学化工学院
  • 收稿日期:2008-12-09 出版日期:2009-12-15 发布日期:2010-12-29
  • 通讯作者: 王遂 E-mail:wangsuiyzl@126.com
  • 基金资助:

    黑龙江省教育厅科学技术资助项目(11521067)

Extraction of Dihydroquercetin in Larch

WANG Yu,WANG Sui*   

  1. College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, China
  • Received:2008-12-09 Online:2009-12-15 Published:2010-12-29
  • Contact: WANG Sui* E-mail:wangsuiyzl@126.com

摘要:

采用分光光度法,以二氢槲皮素为标准品,测定落叶松中二氢槲皮素提取率。以浸取法为提取方法,通过L9(34)正交试验设计,考察了提取条件与二氢槲皮素提取率的关系。结果表明,落叶松中二氢槲皮素的最佳提取工艺为乙醇体积分数30%、提取温度40℃、料液比1:20(g/ml)、提取时间120min。

关键词: 落叶松, 二氢槲皮素, 分光光度法, 提取工艺

Abstract:

The effects of ethanol concentration, solid-to-liquid ratio, extraction temperature and time on the yield of dihydroquercetins from larch were studied, and a L9(34) orthogonal test was then employed to optimize the extraction. The content of dihydroquercetins was determined by spectrometry. Results showed that the optimum extraction conditions were as follows: ethanol concentration 30%, temperature 40 ℃, solid-liquid ratio 1:20 (g/ml) and extraction time 120 min. Under such conditions, the yield of dihydroquercetins extract was 2.14% with its purity at 11.3%.

Key words: larch, dihydroquercetin, spectometric method, extraction technology

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