华南理工大学学报(自然科学版) ›› 2004, Vol. 32 ›› Issue (8): 93-96.

• • 上一篇    

微波辅助提取黄芪多糖的工艺研究

龚盛昭 杨卓如   

  1. 华南理工大学 化工与能源学院‚广东 广州510640
  • 收稿日期:2003-11-12 出版日期:2004-08-20 发布日期:2015-09-09
  • 通信作者: 龚盛昭(1970-)‚男‚现任广东轻工职业技术学院轻化工程系副教授‚在职博士生‚主要从事中药现代化技术研究 E-mail:shengzhao2002@sina.com
  • 作者简介:龚盛昭(1970-)‚男‚现任广东轻工职业技术学院轻化工程系副教授‚在职博士生‚主要从事中药现代化技术研究
  • 基金资助:
    广东省佛山市产学研专项资金资助项目(2003A36)

Investigation into the Microwave-assisted Extraction Technology for Astragalus Polysaccharide

Gong Sheng-zhao Yang Zhuo-ru   

  1. College of Chemical &Energy Engineering‚South China Univ.of Tech.‚Guangzhou510640‚Guangdong‚China
  • Received:2003-11-12 Online:2004-08-20 Published:2015-09-09
  • Contact: 龚盛昭(1970-)‚男‚现任广东轻工职业技术学院轻化工程系副教授‚在职博士生‚主要从事中药现代化技术研究 E-mail:shengzhao2002@sina.com
  • About author:龚盛昭(1970-)‚男‚现任广东轻工职业技术学院轻化工程系副教授‚在职博士生‚主要从事中药现代化技术研究

摘要: 以水为提取剂‚研究了微波辅助提取黄芪多糖的工艺‚得到了微波辅助提取黄芪多糖的最佳工艺条件:液料质量比为121 ;用饱和石灰水调节 pH=9;微波功率300☞W 时提取2次‚每次提取10☞min.提取液真空浓缩后‚加入乙醇使多糖沉淀‚过滤‚沉淀用乙醇洗涤多次‚真空干燥后即得黄芪粗多糖‚产率为14.6%‚纯度为88.1%.与直接加热提取法相比‚微波辅助提取能缩短提取时间‚降低提取剂用量‚并能提高黄芪多糖产率.

关键词: 黄芪多糖, 微波辅助提取, 提取工艺

Abstract: The microwave-assisted extraction technology for astragalus polysaccharide was studied‚with water as the extraction solvent.The optimal extraction conditions were obtained as follows: the ratio of water to the material‚12∶1;pH value‚9‚regulated by saturated limewater;two doses of microwave radiation (300☞W) for10min.Precipitate was obtained after the extracted liquor was concentrated in vacuum and blended with ethanol.The crude product of as-tragalus polysaccharide with the yield of14.6% and the purity of88.1% was then obtained after the precipitate was washed with ethanol for several times and dried in vacuum.It is found that‚compared with the direct -heating extrac-tion‚the microwave-assisted extraction can shorten the extraction duration‚reduce the consumption of the solvent and improve the yield of astragalus polysaccharide.

Key words: astragalus polysaccharide, microwave-assisted extraction, extraction technology

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