不同干燥方法对白芷提取物中欧前胡素含量的影响

Objective To investigate the influence of different drying technology on imperatorin of Angelica dahurica extract. Methods We detect imperatorin of different drying samples by HPLC determination. Results The content of imperatorin which included in microwave drying almost equal to the spray drying samples, followed by the vacuum drying samples, the ambient pressure drying samples. Conclusion The spray drying and microwave drying technology can be used for the dehydration of Chinese Herb Medicine with the advantage of shortened drying time and better preservation of active ingredient.