湖北十堰何首乌不同生长期主要活性成分的分布及含量变化
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1.华中农业大学植物科学技术学院;2.十堰市农业科学院

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国家科技部“中医药现代化研究”重点专项(2017YFC1701000)


Distribution and Content Changes of Main Active Components in Polygonum multiflorum Thunb. at Different Growth Stages in Shiyan of Hubei Province
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    摘要:

    【目的】探索十堰地区何首乌(Polygonum multiflorum (Thunb.))中活性成分随生长年限的动态变化过程,以确定何首乌人工栽培的适宜采收时期。方法:采用HPLC法连续测定何首乌移栽后不同生长时期、不同器官中二苯乙烯苷(THSG)和不同形态蒽醌类物质的含量。【结果】何首乌地下部干物质在移栽后3年内持续增加,移栽后的2年内增加最快,第3年增长速度明显减慢。何首乌不同器官中二苯乙烯苷和蒽醌类物质含量高低顺序均为未膨大根 > 块根 > 茎,叶中上述2类物质的含量微少、难以检出;根中二苯乙烯苷和蒽醌类成分含量均在移栽后2年内呈“直线式”增加趋势,并于第2年12月份达到最大值,第3年时与第2年同时期的相比其2类物质的含量没有显著差异;茎中上述2类物质的含量在3年间的总体差异不显著,但在不同季节存在明显波动,均以每年的12月份含量最高。【结论】十堰地区何首乌在移栽后第2年12月份质量、产量相对最优,可作为人工种植何首乌适宜采收期的参考依据。

    Abstract:

    Objective: To study the dynamic change process of main active ingredients in P. multiflorum Thunb. in Shiyan City, so as to determine the suitable harvest time of P. multiflorum Thunb. cultivated in this area. Method: the contents of 2,3,5,4"-tetrahydroxystilbene 2-O-glucoside(THSG) and anthraquinones in different forms in different organs of P. multiflorum Thunb. at different growth stages after transplanting were determined by HPLC method. Result: The underground dry matter of P. multiflorum Thunb. increased continuously within 3 years after transplanting, increased fastest in the first 2 years and then slowed down obviously in the third year. The order of the contents of THSG and anthraquinones in different organs of P. multiflorum Thunb. was as follows: unexpanded root > root tuber > stem, and the contents of the above two kinds of substances in leaves were too small to be detected. The contents of THSG and anthraquinones in root of P. multiflorum Thunb. increased almost linearly within 2 years after transplanting, and reached the maximum value in December of the second year, and there was no significant difference between the content of the above two kinds of the substances in the third year compared with that in the same period of the second year’s organs The content of the above two kinds of substances in stems has no significant difference in three years, but there are obvious fluctuations in different seasons, with the highest content in December each year. Conclusion: The quality and yield of P. multiflorum Thunb. in Shiyan area are the best in December of the second year after transplanting, which could be used as a reference for the suitable harvest time of P. multiflorum Thunb. cultivated in this area

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  • 收稿日期:2021-07-28
  • 最后修改日期:2021-09-03
  • 录用日期:2021-09-06
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