J4 ›› 2016, Vol. 1 ›› Issue (4): 26-28.

• 药学 • 上一篇    下一篇

云南部分兰科植物多糖的提取及含量测定

  

  1. (大理大学药学与化学学院,云南大理671000)
  • 收稿日期:2016-01-09 出版日期:2016-04-15 发布日期:2016-04-15
  • 作者简介:赵会然,硕士研究生,主要从事天然药物化学研究.
  • 基金资助:

    国家自然科学基金资助项目(81160393);大理大学大学生科研基金资助项目(yh201404)

Extraction of Polysaccharide and Content Determination of Yunnan Orchidaceae Plants

  1. (College of Pharmacy and Chemistry, Dali University, Dali, Yunnan 671000, China)
  • Received:2016-01-09 Online:2016-04-15 Published:2016-04-15

摘要:

目的:建立云南部分兰科植物多糖含量测定的方法,并对其提取工艺进行研究。方法:采用传统水提取方法提取多糖,
以葡萄糖为标准品,用苯酚-硫酸法测定多糖的含量,并以其为考察指标,采用提取条件的优化筛选最佳提取工艺。结果:葡
萄糖在0.000~0.020 mg/mL范围内线性关系良好,线性回归方程为A =55.55c(mg/mL)+ 0.001(r = 0.999 8),平均加标回收率为
99.7%,RSD=3.13%(n=6);最佳显色条件:苯酚用量1.0 mL、浓硫酸用量7.0 mL、显色温度80 ℃、显色时间30 min;提取兰科植物
多糖的最佳工艺条件为:提取温度70 ℃,料液比1:40,提取时间2 h。结论:该方法简便、准确,优选出的提取工艺重复性好。

关键词: 兰科植物, 多糖, 提取条件, 含量测定, 苯酚-硫酸法

Abstract:

Objective: To establish the method for determining the contents of polysaccharides and to explore the extraction
technique for polysaccharides from Yunnan orchidaceae plants. Methods: The polysaccharide was extracted with the traditional water
extraction, using glucose as the standard, and the contents of polysaccharides was measured by the phenol-sulfuric acid method. With
the content of polysaccharides as an index, the univariate test were performed to find the optimal extraction technique. Results: A good
linear relationship with a regression equation of A=55.55c(mg/mL)+0.001(r=0.999 8)was achieved when the concentration of glucose
ranged between 0.000 and 0.020 mg/mL. The average recovery rate was 99.7%, and the relative standard deviation was 3.13%(n=6).
The best conditions of color are as follows, the dosage of phenol and sulphuric acid was 1.0 mL and 7.0 mL respectively, temperature of
color was at 80 ℃, and developing time was 30 minutes. The optimal extraction of polysaccharide was performed by 2 hours soaking
using 1 : 40 volumes of solvent at 70 ℃. Conclusion: The established method is simple and accurate and the optimal extraction
technique shows good reproducibility.

Key words: Orchidaceae plants, polysaccharide, extraction conditions, determination of content, phenol sulfuric acid method

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