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目的:比较不同提取方法对首乌藤多糖提取效率的影响。方法:采用苯酚-硫酸法测定多糖含量,以粗多糖得率和多糖质量分数为评价指标,对首乌藤多糖不同提取方法进行研究。结果:6种方法中以氢氧化钠提取方法的效果最优,粗多糖得率和多糖质量分数可达25.13%和21.46%。结论:氢氧化钠提取首乌藤多糖是一种效率高且稳定可行的提取方法。
Objective: To compare the effects of different extraction methods on the extraction efficiency of Polysaccharides from Polygonum. Methods: The content of polysaccharide was determined by phenol-sulfuric acid method. The extraction rate of crude polysaccharide and the content of polysaccharide were used as evaluation indexes to study the different extraction methods of polysaccharide from Radix u. Results: The extraction method of sodium hydroxide was the best among the six methods. The yield of crude polysaccharides and polysaccharides were 25.13% and 21.46%, respectively. Conclusion: Extraction of Polygonum multiflorum polysaccharide with sodium hydroxide is an efficient and stable extraction method.