Volatile Profile Comparison of Raw and Dried Rizhome of Atractylodes japonica Oh Chang-Hwan Department of Oriental Medical Food and Nutrition, Semyung University, 65 Semyung-ro, Jecheon, Chungbuk-27136, South Korea Online published on 14 May, 2018. Abstract Atractylodes japonica is a source of herbal medicinal material “Sab-Joo” for herbal medicine “Baekchul” in Korea. Volatile aroma compounds may play some valuable therapeutic activities. Volatiles in raw and dried Sab-Joo(the rhizome of A. japonica) were analyzed by GC-MS after a dynamic headspace method. The mashed samples were stabilized at 40°C for 30min and volatile compounds were captured by 100 □ polydimethylsiloxane coated SPME fiber just before DB-5MS column separation followed by mass spectrometric analysis (with electron impact mode). Among 58 detected peaks, the 15 major components were observed for their fate after drying of Sab-Joo. β-Elemene, β-maaliene, 2, 3, 4, 5-tetramethyltricyclo[3.2.1.02, 7] oct-3-ene, curcumene, 1-(3, 3-dimethyl-but-1-ynyl)-1, 2-dimethyl-3-methylene-cyclopropane, guaia-10, 11 diene, and furanodiene were diminished after drying. α-Selinene and valencene were almost disappeared in dried Sab-Joo. Among the eight volatiles relatively increased after drying, five components, such as β-patchoulene, valencene, α-selinene, 9, 10-dehydro-Isolongifolene, and (−)-aristolene were more than doubled up(percent change over 100%). β-Patchoulene, valencene increased about four times after drying. The major volatiles over 5%(NPA%) in the dried sample were all sesquiterpenes having molecular formula (MW=204). The relative quantitative volatile profiles were quite different before and after drying Sab-C15H24 Joo. Therefore the fate of the pharmaceutically/toxicallyimportant volatile components by the simple drying process should be carefully studied to maximize the efficacy and minimize the risk of the final product. Top Keywords Atractylodes japonica, Sab-Joo, Volatiles, SPME, GC-MS, Drying. Top |