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Position: Home > Articles > Study on the Accumulation of Polysaccharides and Alcohol-soluble Extracts from Dendrobium devonianum Paxt. Journal of Anhui Agricultural Sciences 2018 (3) 1-2+5

齿瓣石斛多糖及醇溶性浸出物含量积累规律研究

作者：

姚志军;白燕冰;罗仁山;史文斌;李泽生

单位：

云南省德宏热带农业科学研究所

关键词：

齿瓣石斛;多糖;醇溶性浸出物;积累规律

摘要：

[目的]研究不同海拔、不同采收时间齿瓣石斛鲜条内的多糖含量以及醇溶性浸出物含量变化规律。[方法]采用循环水浴加热法提取齿瓣石斛中的多糖、醇溶性浸出物,并进一步运用化学试剂反应显色以及形成络合物;采用紫外分光光度法对石斛样品中的多糖含量进行测定,用差量法对石斛样品中的醇溶性浸出物含量进行测定。[结果]齿瓣石斛受海拔、采收时间的影响较大,不同海拔、不同采收时间所测齿瓣石斛所含多糖含量及醇溶性浸出物含量变化较大。在适宜种植齿瓣石斛的滇西地区,海拔越高,齿瓣石斛所含多糖及醇溶性浸出物含量越高;采收时间越长,齿瓣石斛所含多糖含量呈减少的趋势,但变化不明显,相反醇溶性浸出物含量却逐渐增加。[结论]该研究为齿瓣石斛种植和采收提供参考。

译名：

Study on the Accumulation of Polysaccharides and Alcohol-soluble Extracts from Dendrobium devonianum Paxt.

作者：

YAO Zhi-jun;BAI Yan-bing;LUO Ren-shan;Yunnan Dehong Institute of Tropical Agricultural Sciences;

关键词：

Dendrobium devonianum Paxt;;Polysaccharides;;Alcohol-soluble extracts;;Accumulation law

摘要：

[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.

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齿瓣石斛多糖及醇溶性浸出物含量积累规律研究

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