不同生长时期人参中总糖、还原糖和可溶性多糖含量变化

目的:研究不同生长时期人参根、茎、叶中糖类含量的变化规律.方法:分别于人参展叶期、开花期、结果期、果后参根生长期和枯萎期采集人参根、茎、叶样品,应用紫外分光光度法对其总糖、还原糖和可溶性多糖含量进行测定.结果:参根中总糖和还原糖含量在果后参根生长初期达到最大值,可溶性多糖含量在果后参根生长后期达到最大值;参茎和参叶中的总糖、还原糖和可溶性多糖含量在人参整个生长时期无显著性变化.结论:人参中总糖、还原糖和可溶性多糖含量在人参不同生育期均有其各自的变化规律,与人参的形态建成及物质代谢密不可分.

Research on Total Sugar, Reducing Sugar and Soluble Polysaccharide Content Change in Ginseng Radix et Rhizoma from Different Growth Period

Objective: To analyze the change rules of carbohydrate content in Ginseng Radix et Rhizoma root, stem and leaf from different growth period. Method: Acquisition Ginseng Radix et Rhizoma root, stem and leaf samples from the spreading stage, the flowering stage, the fruit growth stage, the root growing after fruit stage and the withering stage, ultraviolet spectrophotometry was adopted to detect the content of total sugar, reducing sugar and soluble polysaccharide in Ginseng Radix et Rhizoma. Result: The content of total sugar and reducing sugar in Ginseng Radix et Rhizoma root reached the maximum value at the fruit growth initial stage, the soluble polysaccharide content reached the maximum value at the fruit growth later stage; the total sugar, reducing sugar and soluble polysaccharide content in Ginseng Radix et Rhizoma stem and leaf had no significant change at the throughout growth stages. Conclusion: The content of total sugar, reducing sugar and soluble polysaccharide in Ginseng Radix et Rhizoma have their own variation at the different growth period, and may be closely related to the plant morphogenesis and material metabolism.