道地产区当归药材品质区域划分

目的:进行当归药材的品质区划研究,指导当归的合理栽培。方法:通过走访和实地调查,从定西市5个县857个样地,采集当归样品857份,使用全球定位系统(GPS)获取采样点信息,超高效液相色谱法(UPLC)测定当归药材8个指标成分含量,结合全国生态因子数据,利用最大熵模型(MaxEnt),SPSS软件,ArcGIS软件进行当归品质适宜性分析。结果:当归的分布适宜区集中在定西市中部及南部,在适宜区范围内阿魏酸、阿魏酸松柏酯、洋川芎内酯H含量由南向北递减;绿原酸含量由北向南递减;洋川芎内酯A,洋川芎内酯I含量由东向西递减;丁烯基苯酞含量规律性不强,含量最高区域在岷县西部、渭源县清源镇、上湾乡、会川镇;藁本内酯在适宜区范围内含量一致性高,含量最高区域在渭源县中部及通渭县北部地区。岷县、漳县、渭源县南部、通渭县北部地区当归药材指标成分含量高,综合品质好。结论:该研究对定西市当归药材品质适宜性进行了等级划分,生成了各指标成分及当归综合品质适宜性区划图,研究结果可为当归药材的综合利用,正确选建优质当归原料基地,科学指导当归药材生产与区域开发提供参考依据。

Quality Regionalization of Angelica sinensis in Genuine Producing Area

Objective:To study on the quality regionalization of Angelica sinensis,in order to guide the rational cultivation of A. sinensis. Method:Through visits and field surveys,a total of 857 batches of A. sinensis were collected from different counties of Dingxi,relevant geographic information such as longitude,latitude,altitude of each sampling point were obtained by using the global positioning system(GPS),the content of 8 indexes in A. sinensis was detected by UPLC,and based on national ecological environment factor data,the suitability analysis of the quality of A. sinensis was performed by using MaxEnt,ArcGIS,SPSS. Result: The suitable areas of A. sinens were concentrated in central and southern Dingxi. In the suitable areas,the content of ferulic acid,coniferyl ferulate,senkyunolide H decreased from south to north,the content of chlorogenic acid decreased from north to south,the content of senkyunolide A,senkyunolide I decreased from east to west,the distribution regularity of butenyl phthalide was not strong,the highest-content areas were in western Min county,Qingyuan town of Qingyuan county,Shangwan Township and Huichuan town. The content of ligustilide was consistent in the suitable area,and the highest content were in the middle of Weiyuan county and the northern Tongwei county. The results showed that it had a higher index components and comprehensive quality in Min county,Zhang county,southern Weiyuan county and northern Tongwei county. Conclusion: In this study,the quality suitability areas of A. sinensis in Dingxi were graded. The chemical components and the quality suitability zoning maps were generated. The findings could provide references for the comprehensive utilization of A. sinensis,the selection and construction of high-quality A. sinensis raw material base,and the scientific guidance for the production and regional development of A. sinensis in Dingxi.