Characterization of chemical components of essential oil from flowers of Chrysanthemum morifolium produced in Anhui province / 中国中药杂志

<p><b>OBJECTIVE</b>To analyze the chemical components of the essential oil extracted from six cultivars' Juhua (Zaogongju, Wangongju, Huangyaoju, Chuju, Xiaoboju and Daboju) produced in Anhui province of China, which were breed from Chrysanthemum morifolium, and to provide scientific basis for quality control.</p><p><b>METHOD</b>The essential oils of the six cultivars'Juhua were extracted by water-steam distillation and separated by GC capillary column chromatography. The components were quantitatively determined with normalization method, and identified by GC-MS.</p><p><b>RESULT</b>From Zaogongju, Wangongju, Huangyaoju, Chuju, Xiaoboju and Daboju, 247, 226, 246, 182, 216 and 122 chromatographic peaks were detected, among them 75, 54, 78, 50, 53 and 43 components were identified,which were composed of 85.67%, 82.80%, 81.38%, 73.22%, 71.51% and 72.87% of the total essential oil, respectively.</p><p><b>CONCLUSION</b>Monoterpenoid compounds were higher more than sesquiterpenoid compounds in the five juhua except for Chuju. There was no difference in the constituents of essential oil of Zaogongju and Wangongju. And verbenyl acetate was the main chemical constituent and composed of 32.10% and 37.85% of the total essential oil, respectively. (1R)-Camphor and bisabolol oxide A were the main chemical constituents in Huangyaoju, which were composed of 28.70% and 12.58% of the total essential oil, respectively. beta-Selinene and borneol were the main chemical constituents in Chuju, which were composed of 17.85% and 12.84% of the total essential oil, respectively. Eucalyptol was the main chemical constituent in Xiaoboju, which were composed of 21.33%. Verbene oxides and chrysanthenone were composed of 25.32% and 8.26% of the total essential oil, respectively, in the Daboju. The common chemical constituents were camphene, borneol, bornyl aceate, (1R)-camphor, (-)-4-terpineol, alpha-terpineol, eucalyptol, cis-caryophyllene, caryophyllene oxide, juniper camphor, beta-sesquiphellandrene, alpha-curcumene and beta-farnesene in the six cultivars' Juhua produced in Anhui province of China. The resultant data provided the further evidences to distinguish Juhua' cultivars and scientific basis for quality control of Juhua.</p>

GC-MS analysis of essential oil from anthodiums of Chrysanthemum morifolium processed by microwave-airflow and steam calefaction / 中国中药杂志

<p><b>OBJECTIVE</b>Analysis of the constituents of the essential oil extracted from the flowers of the Chrysanthemum morifolium processed by the microwave-airflow and the calefaction after steam process from the State Chrysanthemum GAP bases in Zhejiang Province and to provide scientific basis for quality control.</p><p><b>METHOD</b>The essential oil was extracted by water-steam distillation and separated by GC capillary column chromatography. The components were quantitatively determined with normalization method, and identified by GC-MS.</p><p><b>RESULT</b>From the microwave-airflow dried sample and the calefactively dried sample after steam process, 119 and 175 components were detected, among them fifty and fifty-five components were identified, which were composed of 67.89% and 63.64% of the total essential oil, respectively.</p><p><b>CONCLUSION</b>The yield of the essential oil extracted from the microwave-airflow dried sample was 0.40%, and that from the calefactively dried sample after steam process was 0. 19%. The former is 2.1 times higher than the latter. The components of the essential oil are similar and there are differences between the content of corresponding compounds in the two samples. The results showed that application of microwave-airflow combined drying technology remained original and essential constituents. The production benefit was improved greatly. The grade and quality of C. morifolium enhanced, and it's market selling price was increased compared to the traditional drying calefaction after steam process.</p>

GC-MS analysis of essential oils from Radix Angelicae Pubescentis / 中国中药杂志

<p><b>OBJECTIVE</b>To analyze the constituents of the essential oils from Radix Angelicae Pubescentis planted in a GAP base of the Chinese medica materials, and provide the scientific basis for quality control.</p><p><b>METHOD</b>The essential oils were extracted by water-steam distillation and separated by GC capillary column chromatography. The components were calculated with normalization method, and were identified by MS detector.</p><p><b>RESULT</b>229 peaks weredetected, among which 8 compounds have been identified, which made up 78.23% of the total essential oil.</p><p><b>CONCLUSION</b>In the total essential oils of Radix Angelicae Pubescentis, 3-carene (8.89%), m-cymene (4.99%) and beta-phellandrene (8.35%) as the monoterpenes and its derivatives, and eudesma-4 (14), 11-diene (4.36%), alpha-selinene (1.36%), ledol (1.14%), alpha-bisabolol (6.03%), and 1, 8-dimethyl-4-(1-methylethyl)-spiro[4.5]dec-8-en-7-one (4.37%) as the sesquiterpenes and its derivatives, are main components.</p>

GC-MS analysis of essential oils from seeds of Myristica fragrans in Chinese market / 中国中药杂志

<p><b>OBJECTIVE</b>To analyze the constituents of the essential oils extracted from nine samples of commercial seeds of Myristica fragrans Houtt respectively and to provide qualities control foundations.</p><p><b>METHOD</b>Water steam distillation and GC-MS were used.</p><p><b>RESULT</b>95-118 compounds were separated respectively. 79 Compounds being identified which were 95.18%-98.70% of the total essential oil.</p><p><b>CONCLUSION</b>Myristicin (39.63%) and terpene series were the main compounds.</p>