摘要
目的研究槐花、蒲黄、鸡冠花、莲房、地榆、乌梅、牡丹皮、石榴皮的生品及不同炭化程度的炭品与其p H值、炭吸附力以及扫描电镜特征的相关性。方法采用连续回流提取槐花等8种饮片的生品及其不同炭化程度的炮制品,测定其pH值;采用分光光度法测定吸附力的大小;采用扫描电镜观察其特征结构变化。结果槐花、蒲黄、鸡冠花、莲房、地榆、乌梅、牡丹皮、石榴皮饮片的炭品的pH值比生品大,且随着炒炭程度的增加而增加;吸附力的大小是标准炭的吸附力比其轻炭和重炭的吸附力大;扫描电镜的结果为随炭化程度的增加,其特征结构数量会减少。结论槐花等8种饮片不同炭化程度的相关性可以采用测定pH值、炭吸附力及扫描电镜的方法,作为中药饮片"炒炭存性"的质量控制指标。
Objective To study the degree of carbonization correlation with p H value,carbon absorption and electron scanning of carbonized products of Sophora Flos,Typhae Pollen,Celosiae Cristatae Flos,Nelumbinis Receptaculum,Sanguisorbae Radix,Mume Fructus,Moutan Cortex,Granati Pericarpium.Methods The components were extracted from these samples by using continuum circumfluence,the p H value was measured;absorption power was measured by spectrophotometry;its structure and composition were observed by scanning electron microscope(SEM).Results The p H value of carbonized products was bigger than the unprocessed,and the values present the obviously uptrend with the carbon was stronger than increase of fried time of the carbon;the absorption power of standard was bigger than light carbon and heavy carbon;the results of SEM showed that the number of characteristic structures decreased with the increase of carbonization degree.Conclusion p H value,carbon adsorption capacity and SEM can be adopted as the quality control indexes for the carbonization degree of the eight kinds of Chinese herbal pieces.
作者
丁珂
望梓娴
刘先琼
DING Ke;WANG Zixian;LIU Xianqiong(College of Pharmacy,Hubei University of Chinese Medicine,Wuhan 430065)
出处
《湖北中医药大学学报》
2020年第1期38-43,共6页
Journal of Hubei University of Chinese Medicine
基金
2016年度湖北省普通本科高校“荆楚卓越人才”协同育人计划项目(中药学)(鄂教高函[2016]35号)。