The fresh Poria cocos were dried by different drying methods(natural drying,drying at 60℃,drying at 80℃,drying at 105℃and freeze drying).The contents of triterpenes and pachymic acid of dried Poria cocos were determined,and the effects of dif-ferent drying methods on the contents of triterpenes and pachymic acid were compared.The results showed that the contents of triter-penes and pachymic acid in Poria cocos were freeze drying>drying at 105℃>drying at 80℃>drying at 60℃>natural drying.Un-der the freeze drying process,the triterpenes and pachymic acid contents of Poria cocos were up to 8.95%and 6.89%,respectively,and the triterpenoids and pachymic acid contents of natural drying Poria cocos were the lowest.The best drying method of Poria cocos was determined to provide reference for the selection of the post-processing technology of Poria cocos.
维普
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