期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2018
卷号：9
期号：6
页码：1735-1740
DOI：10.26872/jmes.2018.9.6.193
出版社：University of Mohammed Premier Oujda
摘要：The final product of medicinal and aromatic plants depends on the quality of farmingsystems and manufacturing processes, in addition to the treatment of post-harvest.Storage is an important factor to maintain the quality and safety of medicinal andaromatic plants. This study focused on the comparison of the best ways to storeLaurusnobilis L. essential oil, whether to store it in the form of essential oils or keep itinside the dry herb until extracting by hydrodistillation. This experiment consists of twoparts, the first is storing the distilled oil under cool conditions, while, the second is thevolatile oil which stored inside the herb in bags of cartoon and stored in a dry place untilextracting. In all cases the essential oil was analyzed by GC/MS every four months forone year. The fresh essential oil (at zero time) consist of approximately 56.83% 1,8-cineole. Other major constituents of oxygenated monoterpens were α-terpenyl acetate(13.47 %), trans-beta-terpineol (4.96%) and terpinen-4-ol (3.19). while, α-pinene andsabinene were (4.09 and 6.94%) respectively. On the other hand the constituents of cislinalool oxide, isobornyl acetate and β--elemene were identified in concentrations above1%. The essential oil constituents changes during storage time depend on the storageconditions. The largest change in essential oil constituents for the dry herb wasobserved after storage period of one year, while this change was less after storageperiod of four month.Also, oil compounds were more stable during the first eightmonths of the herb storage, then it reduced after that. At the same time, some changeshave been recorded in the chemical composition of L. nobilis essential oil stored undercooling conditions due to the duration of storage.
关键词：LaurusnobilisL; Essential oil; Storage; Gas chromatography ; Constituents; 1;8cineole;
