A new sesquiterpenoid,named baimuxifuranic acid,has been isolated from the volatile oil of Aquilaria sinensis(Lour.)Gilg.belonging to the family Thymelaceae by silica gel column chromatography.Based on spectral analys...A new sesquiterpenoid,named baimuxifuranic acid,has been isolated from the volatile oil of Aquilaria sinensis(Lour.)Gilg.belonging to the family Thymelaceae by silica gel column chromatography.Based on spectral analysis its structure was deduced as(1).Reduction of baimuxifuranic acid by LiAlH_4 gave a展开更多
To analyze the constituents of essential oil from Chinese eaglewood [resinous wood of Aquilaria sinensis （Lour.） Gilg] and its anti-methicillin-resistant Staphylococcus aureus （MRSA） activity. The essential oil wa...To analyze the constituents of essential oil from Chinese eaglewood [resinous wood of Aquilaria sinensis （Lour.） Gilg] and its anti-methicillin-resistant Staphylococcus aureus （MRSA） activity. The essential oil was extracted by water-steam distillation and analyzed by GC/MS method. The relative contents of the compounds were determined by normalization. The compounds were characterized by NIST05 and WILEY275L database matching and comparison of their MS spectra with those of literature data. Antibacterial activity of the oil was assayed by the filter paper disc agar diffusion method. The oil showed significant antibacterial activity against MRSA. Sixty-six chromatographic peaks were detected, among them thirty compounds comprising 59.80% of the total essential oil were characterized. Twenty-six compounds comprising 54.26% of the oil were identified as sesquiterpenes. β-Agarofuran （8.96%）, kusunol （7.82%）, （-）-jinkoh-eremol （5.04%）, agarospirol （4.53%）, baimuxifuranic acid （4.09%） were the major sesquiterpenes. Four nor-sesquiterpenes and some other sesquiterpenes, such as 10-epi-γ-eudesmol, α-agarofuran, epi-ligulyl oxide, etc. were detected in Chinese eaglewood oil for the first time. This is the first report about anti-MRSA activity of Chinese eaglewood oil from A. sinensis.展开更多
三叶青(Tetrastigma hemsleyanum Diels et Gilg)药效显著,具有较大开发利用价值,但其野生资源濒危且尚未完全实现人工产业化栽培。在总结三叶青药材的药用历史与产品现状分析的基础上,系统分析了浙江省三叶青种质资源、栽培环节、综合...三叶青(Tetrastigma hemsleyanum Diels et Gilg)药效显著,具有较大开发利用价值,但其野生资源濒危且尚未完全实现人工产业化栽培。在总结三叶青药材的药用历史与产品现状分析的基础上,系统分析了浙江省三叶青种质资源、栽培环节、综合开发等产业化发展的关键问题,并提出了实施三叶青产业化过程中需关注的发展思路及对策。展开更多
三叶崖爬藤(Tetrastigma hemsleyanum Diels et Gilg)作为一种重要的中药材产品,林下套种的种植方式也越来越得到重视,但不同套种模式对三叶崖爬藤生长有显著的影响。本文设计3种不同种植模式进行比较,结果表明:利用无纺布袋种植的模式...三叶崖爬藤(Tetrastigma hemsleyanum Diels et Gilg)作为一种重要的中药材产品,林下套种的种植方式也越来越得到重视,但不同套种模式对三叶崖爬藤生长有显著的影响。本文设计3种不同种植模式进行比较,结果表明:利用无纺布袋种植的模式Ⅰ和模式Ⅱ均较直接裸地栽植的模式Ⅲ在成活率、分枝数、单株块茎数量和单株产量上有显著的提高(P<0.05)。套袋对三叶崖爬藤生长作用明显,表现为有套袋的模式Ⅰ较无套袋的模式Ⅱ在成活率、株高、分枝数、单株块茎数量和单株产量上分别增加了2.8%、23.3%、35.4%、95.2%和87.6%,但均未达到显著水平。展开更多
文摘A new sesquiterpenoid,named baimuxifuranic acid,has been isolated from the volatile oil of Aquilaria sinensis(Lour.)Gilg.belonging to the family Thymelaceae by silica gel column chromatography.Based on spectral analysis its structure was deduced as(1).Reduction of baimuxifuranic acid by LiAlH_4 gave a
基金Foundation items:National Basic Research Program of China(Grant No.2007CB 116306)Science and Technology Foundation of Chinese Academy of Tropical Agricultural Sciences(Grant No.RKY0726)National Nonproft Institute Research Grant of CATAS-ITBB(Grant No.ITBBZDO743).
文摘To analyze the constituents of essential oil from Chinese eaglewood [resinous wood of Aquilaria sinensis （Lour.） Gilg] and its anti-methicillin-resistant Staphylococcus aureus （MRSA） activity. The essential oil was extracted by water-steam distillation and analyzed by GC/MS method. The relative contents of the compounds were determined by normalization. The compounds were characterized by NIST05 and WILEY275L database matching and comparison of their MS spectra with those of literature data. Antibacterial activity of the oil was assayed by the filter paper disc agar diffusion method. The oil showed significant antibacterial activity against MRSA. Sixty-six chromatographic peaks were detected, among them thirty compounds comprising 59.80% of the total essential oil were characterized. Twenty-six compounds comprising 54.26% of the oil were identified as sesquiterpenes. β-Agarofuran （8.96%）, kusunol （7.82%）, （-）-jinkoh-eremol （5.04%）, agarospirol （4.53%）, baimuxifuranic acid （4.09%） were the major sesquiterpenes. Four nor-sesquiterpenes and some other sesquiterpenes, such as 10-epi-γ-eudesmol, α-agarofuran, epi-ligulyl oxide, etc. were detected in Chinese eaglewood oil for the first time. This is the first report about anti-MRSA activity of Chinese eaglewood oil from A. sinensis.
文摘三叶青(Tetrastigma hemsleyanum Diels et Gilg)药效显著,具有较大开发利用价值,但其野生资源濒危且尚未完全实现人工产业化栽培。在总结三叶青药材的药用历史与产品现状分析的基础上,系统分析了浙江省三叶青种质资源、栽培环节、综合开发等产业化发展的关键问题,并提出了实施三叶青产业化过程中需关注的发展思路及对策。
文摘三叶崖爬藤(Tetrastigma hemsleyanum Diels et Gilg)作为一种重要的中药材产品,林下套种的种植方式也越来越得到重视,但不同套种模式对三叶崖爬藤生长有显著的影响。本文设计3种不同种植模式进行比较,结果表明:利用无纺布袋种植的模式Ⅰ和模式Ⅱ均较直接裸地栽植的模式Ⅲ在成活率、分枝数、单株块茎数量和单株产量上有显著的提高(P<0.05)。套袋对三叶崖爬藤生长作用明显,表现为有套袋的模式Ⅰ较无套袋的模式Ⅱ在成活率、株高、分枝数、单株块茎数量和单株产量上分别增加了2.8%、23.3%、35.4%、95.2%和87.6%,但均未达到显著水平。
