安徽农业科学2018，Vol.46Issue(3)：1-2,5,3.
齿瓣石斛多糖及醇溶性浸出物含量积累规律研究
Study on the Accumulation of Polysaccharides and Alcohol-soluble Extracts from Dendrobium devonianum Paxt
摘要
Abstract
[Objective] The research aimed to study the changes of polysaccharide content and content of alcohol-soluble extract in fresh Dendrobium devonianum at different altitudes and different harvesting time.[Method] The polysaccharides content and alcohol-soluble extracts contents from Dendrobium devonianum were extracted by the method of circulating water bath heating.The chemical reaction was used to develop the color reaction and form the complexes.The content of polysaccharides in Dendrobium samples was determined by ultraviolet spectrophotometry.The contents of alcohol-soluble extracts in Dendrobium samples were determined by the difference method.[Result] Dendrobium devonianum was influenced by altitude and harvesting time.The content of polysaccharides and alcohol-soluble extracts from Dendrobium devonianum were significantly different at different altitudes and harvesting time.In the west of Yunnan suitable for planting Dendrobium devonianum,the higher the elevation,the higher the content of polysaccharides and alcohol-soluble extracts contained from Dendrobium devonianum;The longer the harvesting time,the polysaccharide content from Dendrobium devonianum showed a decreasing tendency,but the change was not obvious;on the contrary,the content of alcohol-soluble extract gradually increased.[Conclusion] The study provides a reference for the cultivation and harvesting of Dendrobium devonianum.关键词
齿瓣石斛/多糖/醇溶性浸出物/积累规律Key words
Dendrobium devonianum Paxt./Polysaccharides/Alcohol-soluble extracts/Accumulation law分类
农业科技引用本文复制引用
姚志军,白燕冰,罗仁山,史文斌,李泽生..齿瓣石斛多糖及醇溶性浸出物含量积累规律研究[J].安徽农业科学,2018,46(3):1-2,5,3.基金项目
中华人民共和国农业部专项(16RZZY-07-07). （16RZZY-07-07）
