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目的研究茯苓的挥发性成分。方法利用有机溶剂-水蒸气蒸馏提取茯苓挥发性成分,用GC/MS进行分离测定,结合计算机检索技术对分离化合物进行结构鉴定,应用色谱峰面积归一化法计算各成分的相对百分含量。结果茯苓超微粉中分离出131个成分,鉴定出67个化学成分,占挥发油总量的51.145%;茯苓普通粉中分离出103个成分,鉴出61个化学成分,占挥发油总量59.223%。茯苓2种粉末挥发油成分中,含有57种相同成分,其中含量最高的分别为α-柏木醇(茯苓超微粉7.936%)、反橙花叔醇(茯苓普通粉8.657%)。结论首次报道利用简便的有机溶剂-水蒸气蒸馏法提取茯苓超微粉挥发性成分,并将其与茯苓普通粉一起进行定性定量的对比研究。
Objective To study the volatile components of alfalfa. Methods The volatile components were extracted by organic solvent-steam distillation and separated by GC/MS. The structures of the isolated compounds were identified by computer-assisted extraction. The relative percentage of each component was calculated by the method of peak area normalization. RESULTS: 131 components were separated from the ultrafine powder, 67 chemical components were identified, accounting for 51.145% of the total volatile oil, 103 components were separated from the common powder, and 61 chemical components were identified, accounting for 59.223% of the total volatile oil. Among the two kinds of powdered volatile oil components, there are 57 kinds of the same components, of which the highest contents are α-ceryl alcohol (7.936% of ultrafine powder) and nerolidol (8.657% of common powder). Conclusion For the first time, a simple organic solvent-steam distillation method was used to extract the volatile components of the ultrafine powder, and the qualitative and quantitative comparisons of the ultrafine powders were performed.