title: [Analysis of variation of coumarin and volatile compounds in Angelica Dahuricae radix in different drying methods and conditions].
abstract: To explore the effect of different processing methods and conditions of coumarin and volatile compounds in Angelica Dahuricae Radix and their change regularity, in order to optimize and establish appropriate drying methods and conditions. After being cleaned, fresh Angelica Dahuricae Radix herbs were baked, sun-dried, shade-dried, sun-dried after sulfur-fumigation, dried by quick-lime embedding, freeze-dried, microwave-dried. Finally, 24 groups of samples were obtained after being mashed and passing through the 60-mesh screen. The HPLC-PDA method was adopted to simultaneously determine the content of coumarin compounds. The GC-MS method was used to determine the content of volatile compounds. The principal component analysis (PCA) was made on the standardized analysis results for the 24 groups of samples processed with different drying methods. According to the PCA results, the comprehensive scores of coumarin and volatile compounds in Angelica Dahuricae Radix herbs processed with different methods in the order from high to low were that unpeeled and dried by quicklime embedding > unpeeled and dried with hot-air at 100 degrees C > unpeeled and dried with hot-air at 40 degrees C > peeled and infrared-dried > peeled and dried with hot-air at 60 degrees C > peeled and dried with hot-air at 40 degrees C > peeled and sun-dried > peeled and dried with hot-air at 60 degrees C > peeled and dried with hot-air at 100 degrees C > peeled and microwave-dried > peeled and dried with hot-air at 80 degrees C > unpeeled and sun-dried > unpeeled and dried with sulfur-fumigation > peeled and dried with sulfur-fumigation > unpeeled and dried with hot-air at 120 degrees C > unpeeled and freeze-dried > unpeeled and infrared-dried > peeled and dried with hot-air at 120 degrees C > peeled and freeze-dried > peeled and dried by quicklime embedding > unpeeled and dried with hot-air at 80 degrees C > peeled and shade-dried > unpeeled and shade-dried > unpeeled and microwave-dried. According to the findings, different drying processing methods have certain impacts on the content coumarin and volatile compounds in Angelica Dahuricae Radix herbs. The traditional method of drying by quicklime embedding is recommended as the optimum origin processing method of Angelica Dahuricae Radix, which is followed by the method for being peeled and dried with hot-air at 100 degrees C.
authors.forename: Pei
authors.initials: P
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Bing
authors.initials: B
authors.lastname: Zhou
authors.forename: Yuan
authors.initials: Y
authors.lastname: Xu
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Qian
authors.forename: Jin-Ao
authors.initials: JA
authors.lastname: Duan
mesh_terms: D029969:Angelica / Q000737:chemistry*; D003374:Coumarins / Q000032:analysis*; D003890:Desiccation / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry; D006358:Hot Temperature; D025341:Principal Component Analysis; D055549:Volatile Organic Compounds / Q000032:analysis*
chemical_list: D003374:Coumarins; D055549:Volatile Organic Compounds; C030123:coumarin