The effects of different drying methods on medicinal components in leaves of Eucommia ulmoides was evaluated by the multi-index comprehensive scoring method to improve the utilization value of E.ulmoides leaves and preferably develop,protect and utilize E.ulmoides resources.Results:The chlorogenic acid content in E.ulmoides leaves dried with hot wind at 80℃ is the highest (1.059 7％).The pinoresinol diglucoside content in E.ulmoides leaves dried at 80℃ after steaming is the highest (0.521 6％).The flavonoids content in E.ulmoides leaves dried with hot wind at 70℃ is the highest (11.910 0％).The water soluble extracts content in E.ulmoides leaves dried at 80℃ after steaming is the highest (41.980 0％).The ethanol soluble extracts content in E.ulmoides leaves dried with hot wind at 70℃ is the highest (43.490 0％).The comprehensive score of the drying at 80℃ after steam method is 0.872 5 (the highest) based on the multi-index comprehensive scoring method.In conclusion,the method of drying at 80℃ after steam should be used in drying of E.ulmoides leaves.%为提高杜仲叶的利用价值,更好地开发、保护和合理利用杜仲资源,采用多指标综合评分法研究不同制干工艺对杜仲叶药效成分的影响.结果表明:杜仲叶的绿原酸含量以热风杀青80℃烘干工艺最高,为1.059 7％;松脂醇二葡萄糖苷含量以蒸青后80℃烘干工艺最高,为0.521 6％;总黄酮含量以热风杀青70℃烘干工艺最高,为11.910 0％;水溶性浸出物含量以蒸青后80℃烘干工艺最高,为41.980 0％;醇溶性浸出物含量以热风杀青70℃烘干工艺最高,为43.490 0％.多指标综合评分以蒸青后80℃烘干工艺的最高,为0.872 5;建议生产上用蒸青后80℃烘干工艺对杜仲叶进行制干处理.
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