5种干燥方法对益母草质量的影响

摘要

AIM To investigate the effects of five drying methods on the quality of Leonurus japonicus Houtt.METHODS With the contents of alkaloids (stachydrine,leonurine) and flavonoids (rutin,quercetin,apigenin,genkwanin) as evaluation indices,the quality of L.japonicus after sun drying,shade drying,hot-air drying,infrared drying and microwave drying was evaluated,respectively.Then the analysis was performed by TOPSIS method.RESULTS After hot-air drying,the retentions of various constituents were the best.After microwave drying,the losses of various constituents were the most.Compared with dissection drying,whole plant drying could hold more constituents.The higher drying temperature was,the less various constituents lost.CONCLUSION Whole plant hot-air drying at 70 ℃ is the most suitable method for drying L.japonicus.%目的 考察5种干燥方法对益母草Leonurus japonicus Houtt.质量的影响.方法 以生物碱(水苏碱、益母草碱)和黄酮(芦丁、槲皮素、芹菜素、芫花素)含有量为评价指标,分别对晒干、阴干、热风干燥、红外干燥、微波干燥后益母草的质量进行评价,再通过TOPSIS法进行分析.结果 热风干燥后,各成分保留最好;微波干燥后,各成分流失最多.与切段干燥相比,整株干燥可保留更多成分.干燥温度越高,各成分流失越少.结论 整株热风70℃干燥是益母草最适宜的干燥方法.