摘要
目的:考察不同干燥方式对杜仲叶中活性成分含量的影响,为建立杜仲叶在产地采收后的干燥加工方式提供参考。方法:取杜仲叶采用不同干燥方法[自然阴干72 h、自然晒干36 h、烘干(60℃6 h、80℃2 h、100℃1 h、120℃0.5 h)、微波真空冷冻干燥12 h、真空冷冻干燥12 h]对杜仲叶进行处理;采用高效液相色谱法同时测定样品中桃叶珊瑚苷、京尼平苷酸、绿原酸、京尼平苷的含量,并与未处理的鲜品进行比较。结果:2种冷冻干燥后的样品与鲜品中的4种成分含量接近,并高于其他干燥方式处理的样品。结论:干燥方法对杜仲叶有效成分具有较显著的影响,微波真空冷冻干燥和真空冷冻干燥较自然阴干、自然晒干、烘干更能保留杜仲鲜叶中的活性成分。
OBJECTIVE：To investigate the effects of different drying methods on contents of active ingredients in leaves of Eucommia ulmoides,and provide reference for establishing its drying methods after habitat harvesting. METHODS：Different drying methods [natural drying in the shade for 72 h,natural drying in the sunlight for 36 h,drying beside or over a fire（60 ℃ 6 h,80 ℃2 h,100 ℃ 1 h,120 ℃ 0.5 h）,microwave vacuum freeze drying for 12 h,vacuum freeze drying for 12 h] were used for processing. HPLC was conducted to determine the contents of aucubin,geniposidic acid,chlorogenic acid and geniposide in samples and compare with the untreated fresh products. RESULTS：Contents of 4 ingredients in samples after the 2 freeze drying were close to these in fresh samples,which were higher than samples after other drying. CONCLUSIONS：Drying methods show significant effects on the effective ingredients in leaves of E. ulmoides. Compared with natural drying in the shade and natural drying sunlight and drying beside or over a fire,microwave vacuum freeze drying and vacuum freeze drying can make better retention of the active ingredients in fresh leaves of E. ulmoides.
出处
《中国药房》
CAS
北大核心
2017年第28期3973-3976,共4页
China Pharmacy
基金
国家中医药管理局公益性行业专项--30味中药饮片产地加工及饮片生产一体化研究(No.201507002-2)
关键词
杜仲叶
桃叶珊瑚苷
京尼平苷酸
绿原酸
京尼平苷
干燥方式
微波真空冷冻干燥
真空冷冻干燥
Leaves of Eucommia ulmoides
Aucubin
Geniposidic acid
Chlorogenic acid
Geniposide
Drying method
Microwave vacuum freeze drying
Vacuum freeze drying
