STUDY ON LOW-TEMPERATURE ADSORPTION DRYING TECHNOLOGY AND IMPACT ON ANGELICA DAHURICA

摘要：

The quality of angelica dahurica drying by low-temperature adsorption drying technique was studied.The effects of drying medium temperature, relative humidity of drying medium and wind speed on the content of imperatorin and total coumarin were investigated.Based on the final water ratio less than or equal to 12％ after drying, the best drying process conditions are as follows: temperature 40 ℃, relative humidity 3~4％, air velocity 0.208m/s; content of imperatorin and coumarins is 0.206 ％ and 1.210％ respectively.It’s proved that low-temperature adsorption drying technique is a highly effective drying way to rapidly obtain dried angelica dahurica (drying time 4.1h) meanwhile minimizing product quality deterioration.

关键词： adsorption drying Angelica dahurica imperatorin coumarins

作者: Li Pingbo Xu Jian Cui Qun Wang Haiyan

作者单位: College of Chemistry and Chemical Engineering,Nanjing University of Technology,No.5 Xinmofan Road,Nanjing 210009,China

会议类型: 国际会议

会议名称: The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)

会议地点: 天津

会议语种:英文

页码: 1-5

在线出版日期: 2011-09-18（万方平台首次上网日期，不代表论文的发表时间）