?不同产地多花黄精生物活性成分含量比较

2020-09-02 07:30:09王丹张鸿刘嘉丽满琪董新荣刘德明黄立新
湖南农业科学 2020年7期

王丹 张鸿 刘嘉丽 满琪 董新荣 刘德明 黄立新

摘 要:以湖南永州地区、湘西地区、张家界地区、娄底地区及四川甘孜地区这5个不同产地的多花黄精为试验材料,采用比色法对其多糖、总皂苷、总黄酮3种生物活性成分的含量进行了测定与分析比较。结果表明:多花黄精中的生物活性成分含量因产地不同而存在着较大差异,多糖含量在8.09%~11.78%范围内变化,以娄底地区的最高;总皂苷含量范围为2.73%~5.01%,以永州地区的最高;总黄酮含量范围为0.21%~0.71%,以张家界地区及四川甘孜地区的较高。总体来看,不同产地多花黄精中多糖含量均较高,总皂苷含量居中,总黄酮含量均较低。

关键词:多花黄精;产地;多糖;总皂苷;总黄酮

中图分类号:R284文献标识码:A文章编号:1006-060X(2020)07-0089-04

Abstract: Polygonatum cyrtonema Hua samples from Yongzhou, Xiangxi, Zhangjiajie  and  Loudi  regions of Hunan , and Garzê region of  Sichuan were used as experimental material for the determination and comparison of  their polysaccharide, total saponins and total flavonoids contents  by colorimetric analysis method. The results showed that the contents of bioactive components in Polygonatum cyrtonema samples varied greatly with different habitats, polysaccharide content ranged from 8.09% to 11.78%, with the highest content from Loudi region; total saponins content ranged from 2.73% to 5.01%, with the highest from Yongzhou region; total flavonoids content ranged from 0.21% to 0.71%, which was relatively higher in Zhangjiajie region of Hunan and Garzê region of Sichuan. In general, polysaccharide content of  these Polygonatum cyrtonema samples is high , total saponins content is medium and total flavones content is low.

Key words: Polygonatum cyrtonema Hua; habitat; polysaccharide; total saponins; total flavones

黃精为百合科植物滇黄精(Polygonatum kingianum Coll. et Hemsl)、黄精(Polygonatum sibiricum Red.)或多花黄精(Polygonatum cyrtonema Hua)的干燥根茎,具有补气养阴、健脾、润肺、益肾的功效[1]。黄精最早见于晋代陶弘景的《名医别录》,在《本草经集注》及《本草纲目》述及:“黄精宽中意气,使五脏调良,肌肉充实,骨髓坚强,其力增倍,多年不老”[2],现为药食两用植物[3]。现代药理及临床研究表明,黄精具有提高免疫力、抗菌、抗病毒、抗衰老、抗肿瘤、降血糖、降血脂、提高记忆力等作用[4-9]。

多花黄精是南方地区的道地中药材,但因长期采挖,导致野生多花黄精资源稀少,不能满足人们的需求。因此,人工栽培多花黄精正在兴起[10]。但是,多花黄精品质与品种、产地自然环境等密切相关。目前,中国药典[1]评价黄精的品质主要为定性评价,仅对多糖含量进行了定量评价。……

登录APP查看全文