2023年1月JournalofGreenScienceandTechnology第25卷第2期收稿日期:2022-11-23基金项目:湖南省科技厅项目(编号:2019NK3031)作者简介:薛佑明(1997-),男,硕士研究生,研究方向为资源利用与植物保护。通讯作者:何介南(1965-),男,博士,副教授,研究方向为资源生态利用与评价。盐析-水蒸气蒸馏法提取樟叶精油工艺的研究薛佑明,何介南,崔仕杰,曾谛,肖佐钰,李嘉顺(中南林业科技大学林学院,湖南长沙410004)摘要:为优化实际生产中采用水蒸气蒸馏法从香樟叶中提取精油的工艺,试验了用一定质量分数的NaCl溶液作为盐析试剂,采用盐析-水蒸气蒸馏法提取香樟叶精油。通过单因素试验考察了在提取过程中料液比、蒸馏时间、NaCl浓度3个方面对香樟新鲜叶片得油率和纯露产出量的影响,从而确定了最佳的提取工艺以及在该工艺下的纯露产出量。结果表明:采用盐析-水蒸气蒸馏法用水蒸气蒸馏提取装置对香樟叶新鲜样品进行加热冷凝回流提取精油和纯露,待水沸腾时开始计时,在液料比1∶10g/mL、蒸馏时间90min、NaCl浓度3%时,得油率达到最高为1.26%,此时的纯露产量为762mL。关键词:水蒸气蒸馏法;盐析;香樟叶精油;香樟叶纯露;工艺优化中图分类号:TQ654文献标识码:A文章编号:1674-9944(2023)02-0276-05StudyonExtractionTechnologyofEssentialOilFromCinnamomumcamphoraLeavesbySalting-SteamDistillationXueYouming,HeJienan,CuiShijie,ZengDi,XiaoZuoyu,LiJiashun(CollegeofForestry,CentralSouthForestryUniversity,Changsha,Hunan410004,China)Abstract:InordertooptimizetheextractionprocessofessentialoilfromCinnamomumcamphoraleavesbyhydrodistillation,thisexperimentusedacertainmassfractionofNaClsolutionasthesaltingreagenttoex-tractessentialoilfromCinnamomumcamphoraleavesbysaltingandhydrodistillation.Theeffectsoftheex-tractionprocessontheoilyieldandthehydrolatyieldoffreshCinnamomumcamphoraleaveswereinvestiga-tedbysingle-factortest,inordertodeterminethebestextractionprocessandthehydrolatyieldundertheprocess.Theresultsshowedthattheessentialoilandhydrolatwereextractedbyheatingandcondensingre-fluxoffreshCinnamomumcamphoraleafsamplesusingthesalinization-waterdistillationextractiondevice.Whenthetimeof90minandNaClconcentrationis3%,theoilratereachesthehighestoilrateto1.26%.Atthistime,thehydrolatproductionatthistimeis7...
