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Extraction of cinnamomum longepaniculatum deciduous leaves essential oil using solvent-free microwave extraction: Process optimization and quality evaluation

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Oil Crop Science 2023年第1期8卷 7-15页

作者： Chunlei Wei Chuyun Wan Fenghong Huang Tingting Guo Oil Crops Research Institute Chinese Academy of Agricultural SciencesWuhanChina Hubei Key Laboratory of Lipid Chemistry and Nutrition WuhanChina Oil Crops and Lipids Process Technology National&Local Joint Engineering Laboratory WuhanChina

The optimal process conditions for solvent-free microwave extraction(SFME)of essential oils from cinnamomum longepaniculatum deciduous leaves after moisture conditioning were established by response surface methodology(RSM).A Box-Behnken design(BBD)was applied to evaluate the effects of three independent variables:moisture content(A:54%–74%),microwave power(B:300–500 W)and microwave time(C:20–40 min),on the extraction yield of essential *** compounds of the essential oils obtained by SFME,hydro-distillation and microwaveassisted hydro-distillation(MADE)were identified by gas chromatography-mass spectrometry(GC-MS),and the total lipids of *** fresh leaves and deciduous leaves were *** correlation analysis of the response regression model indicated that quadratic polynomial model could be employed to optimize the extraction of essential *** optimal extraction condition was A:58%,B:400 W and C:28 *** the optimal condition,the maximum extraction yield was 4.475 mL/100 g dw and higher than that by *** main compound of the essential oil was eucalyptol(63.54%),and total oxygenated compounds was 78.95%,mainly caused by SFME and the metabolism of endophytic bacteria with decreasing content of phospholipids and fatty *** of variance under the extraction condition illustrated high fitness of the model and the success of RSM for optimizing and reflecting the expected process *** combined with moisture regulation was an effective method for extracting essential oil from *** deciduous leaves.

关键词： cinnamomum longepaniculatum Deciduous leaves Solvent-free microwave extraction Response surface methodology Extraction yield Essential oil

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Anti-inflammatory activity of leaf essential oil from cinnamomum longepaniculatum(Gamble) ***

Anti-inflammatory activity of leaf essential oil from Cinnam...

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生态文明建设中的植物学：现在与未来——中国植物学会第十五届会员代表大会暨八十周年学术年会

作者：魏琴 Zhongqiong Yin Yonghua Du Lijun Zhou Cui Tao Renyong Jiac Key Laboratory of Fermentation Resource and Application of Institutes of Higher Learning in Sichuan Key Lab.of Southwest Special Economic Plant Proteition and Exploitation Yibin University College of Veterinary Medicine Sichuan Agricultural University Key Laboratory of Animal Disease and Human Health of Sichuan Province Sichuan Agricultural University

The anti-inflammatory activity and the possible mechanism of leaf essential oil from *** were *** oil both led to a significantly reduction in the dimethylbenzene-induced ear edema in mice and the carrageenan-induced paw edema in *** anti-inflammatory activity of essential oil was observed both in the early and late inflammatory phase and peaked at 4 h after carrageenan *** oil significantly inhibibted the peritoneal capillary permeability induced by acetic acid in mice in a dose-dependent *** inhibition of prostaglandin E 2(PGE 2),histamine and 5-hydroxytryptamine(5-HT) production in the exudates of edema paw induced by carrageenin indicated the probable anti-inflammatory mechanisms of essential *** the essential oil and indomethacin resulted a relative lower inhibitation on histamine and 5-HT than PGE 2 at 4 h after carrageenan injection.

关键词： cinnamomum longepaniculatum essential oil anti-inflammatory activity

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油樟种子育苗技术

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林业科技通讯 2024年第11期 70-75页

作者：罗瑞周成强练东明宁登文冯发玉宜宾林竹产业研究院

本研究通过对油樟(cinnamomum longepaniculatum)种子育苗技术的系统研究，旨在找出提高油樟种子出苗率和小苗生长质量的最佳办法。研究内容涵盖了种子处理、贮藏、催芽及小苗移植等关键步骤。试验结果表明，应选择油樟母树林的优质母... 详细信息

本研究通过对油樟(cinnamomum longepaniculatum)种子育苗技术的系统研究，旨在找出提高油樟种子出苗率和小苗生长质量的最佳办法。研究内容涵盖了种子处理、贮藏、催芽及小苗移植等关键步骤。试验结果表明，应选择油樟母树林的优质母树作为种源。种子的贮藏方式对出苗率的影响有限，但干藏法较沙藏法在操作上更为简便。此外，催芽处理显著提高了种子的出苗率。而在小苗移植阶段，采用容器移植方法能够有效促进小苗生长。这些发现有助于改进现有育苗技术，为今后实际生产提供有益参考。

关键词：油樟 cinnamomum longepaniculatum 育苗容器移植森林培育学

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