不同产地黄芪饮片中矿质元素含量差异性研究

Research on Differences of Mineral Elements Content in Astragalus membranaceus Tablets from Different Places

[目的]研究不同产地黄芪的药用价值。[方法]通过测定不同产地8种黄芪饮片中10种矿质元素含量,进一步分析不同产地黄芪的营养品质。黄芪饮片中氮、磷元素采用比色法测定,钾、钙、镁、铁、锰、锌、铜元素采用原子吸收光谱法测定,硒元素采用原子荧光光度计法测定。[结果]不同产地的8种黄芪对矿质元素富集能力与产地土壤、气候等环境有关。黄芪饮片中全N含量为19.4～24.3g/kg,全P含量为1.8～3.6 g/kg,全K含量为1.1～2.3 g/kg,全Ca含量为838.3～3692.8 mg/kg,全Mg含量为380.1～522.8 mg/kg,全Fe含量为236.6～286.2 mg/kg,全Mn含量为22.3～34.1 mg/kg,全Zn含量为4.4～23.0 mg/kg,全Cu含量为8.1～8.5 mg/kg,全Se含量为0.009～0.464 mg/kg。[结论]综合考虑各产地黄芪饮片中各矿质元素含量的高低,山西浑源黄芪除磷、钾和镁元素外,其余各元素含量均较其他产地黄芪高,为优质黄芪品系。

[Objective] To study medicinal value of Astragalus membranaceus from different places. [Method] Through determining 10 kinds of mineral elements content in 8 Astragalus membranaceus tablets from different places,the nutritional value was further analyzed. N,P were determined by colorimetry,K,Ca,Mg,Fe,Mn,Cu,Zn were determined by atomic absorption spectrometry,Se was determined by atomic fluorescence spectrometer. [Result]The results showed that mineral element enrichment ability of 8 Astragalus membranaceus tablets from different places is related to soil and climate. The contents of N,P,K,Ca,Mg,Fe,Mn,Zn,Cu,Se were in the range of 19. 4- 24. 3 g / kg,1. 8- 3. 6 g / kg,1. 1- 2. 3 g / kg,838. 3- 3 692. 8 mg / kg,380. 1- 522. 8 mg / kg,236. 6- 286. 2 mg / kg,22. 3- 34. 1 mg / kg,4. 4- 23. 0mg / kg,8. 1- 8. 5 mg / kg,0. 009- 0. 464 mg / kg,respectively. [Conclusion] By considering element content,except P,K and Mg,the nutritional quality of Astragalus membranaceus from Hunyuan was better than others.