食品科学 ›› 2009, Vol. 30 ›› Issue (2 ): 69-73.doi: 10.7506/spkx1002-6630-200902012

• 工艺技术 • 上一篇    下一篇

蕨麻水溶性多糖的提取工艺与含量测定研究

王 峰1,李建科1,*,刘海霞1,张建兵2   

  1. 1.陕西师范大学食品工程与营养科学学院 2.中国人民解放军61542 部队卫生所
  • 收稿日期:2008-01-08 修回日期:2008-03-27 出版日期:2009-01-15 发布日期:2010-12-29
  • 通讯作者: 李建科 E-mail:jiankel@snnu.edu.cn

Extraction and Determination of Water-soluble Polysaccharides from Potentilla anserina L.

WANG Feng1,LI Jian-ke1,*,LIU Hai-xia1,ZHANG Jian-bing2   

  1. (1. College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China;
    2. Health Center of 61542 Army, People's Liberation Army, Xi'an 710016, China)
  • Received:2008-01-08 Revised:2008-03-27 Online:2009-01-15 Published:2010-12-29
  • Contact: LI Jian-ke1 E-mail:jiankel@snnu.edu.cn

摘要:

本实验对蕨麻中水溶性多糖进行提取和测定研究。通过单因素试验和L9(33)正交试验优化提取工艺,结果显示最佳工艺为:料液比1:30,温度100℃,时间3.5h,蕨麻多糖提取率为8.78%。同时,采用改良苯酚- 硫酸法,以葡萄糖为参照品,利用紫外分光光度法测定蕨麻中多糖的含量。葡萄糖含量在10.8~75.6μg/ml 范围内与吸光度呈良好的线性关系。回归方程为A=0.0124C+0.0052,R2=0.9987,得到蕨麻多糖含量为9.26%,精密度为0.829%(n=6),样品加标平均回收率为99.33%。此法操作简便,结果稳定可靠,是蕨麻多糖含量测定的有效方法。

关键词: 蕨麻, 多糖, 提取, 测定

Abstract:

Single factor test and orthogonal test methods L9(33) were applied to optimize the technics for extraction and determination of water-soluble polysaccharide in Potentilla anserina L. The results indicated that the optimum technics are as following: solid-liquid ratio 1:30, temperature 100 ℃ and time 3.5 h. Under these conditions, the obtained polysaccharide content is 8.78%. Using improved phenol-sulfuric acid method with glucose as the reference objective, the polysaccharide content in Potentilla anserina L. was also determined by ultraviolet spectrophotometer. The linear range of polysaccharide content is at 10.8~75.6 μg/ml, the regress equation is A=0.0124C+0.0052, R2=0.9987. The determined polysaccharide content is 9.28% and the precision is 0.829% (n=6). The average rate of recovery is 99.33%. In conclusion, this method is simple, easy and reproducible and can be used on the quality control.

Key words: Potentilla anserina L., polysaccharide, extraction, determination

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