首页|柠檬香茅精油的成分分析及抑菌作用研究

柠檬香茅精油的成分分析及抑菌作用研究

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为了研究柠檬香茅精油及其主要成分的抑菌活性,为开发植物源农药提供理论基础,采用水蒸气蒸馏法提取柠檬香茅精油,通过气相色谱-质谱法(GC-MS)对精油进行成分分析,鉴定出了26种成分,占精油的93.57％.其中以柠檬醛(75.73％)为主,萜类化合物含量最高,可达93.13％.醛类化合物在精油中比重最高,占76.35％,其次是醇类、酮类、环醚类和酯类.采用菌丝生长法测试柠檬香茅精油及柠檬醛对黄瓜腐霉菌、番茄灰霉菌、番茄早疫病菌和辣椒尖孢镰刀菌4种重要果蔬病原真菌的抑菌活性,结果表明:在4种供试菌中,柠檬香茅精油及柠檬醛均对黄瓜腐霉病的抑菌效果最佳,但柠檬醛的抑菌效果高于柠檬香茅精油35.30％.
Composition Analysis and Antibacterial Activity of the Essential Oil from Cymbopogon citratus
In order to investigate the essential oil from Cymbopogon citratus and the antimicrobial activities of its predominant element,to provide a theoretical basis for further exploitation of plant pesticide,this paper extracted essential oil from Cymbopogon citratus by steam distillation and analyzed the component of essential oil by gas chromatography coupled with mass spectrometry (GC-MS).Total 26 components were identified representing 93.57％ of the essential oil,including citral (75.73％),the most predominant compound,terpenoids having the highest relative content (93.13％).Besides,aldehyde took the highest proportion of essential oil by 76.35％,followed by alcohol,ketone,cyclic ether and ester.The bacteriostatic activities of Cymbopogon citratus essential oil and citral against 4 important pathogenic fungi from vegetables and fruits Pythium,Botrytis cinerea,Alternaria and Fusarium oxysporum were tested in vitro.The results indicated that among these 4 pathogens,both essential oil from Cymbopogon citratus and citral had the best antibacterial effect against Pythium aphanidermatum,especially the effect of citral is 35.30％ higher than that of the essential oil from Cymbopogon citratus.

essential oil from Cymbopogon citratusgas chromatography-spectrometry(GC-MS)antibacterial activity

林霜霜、邱珊莲、郑开斌、刘华建、刘荣章、鞠玉栋

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福建省农业科学院亚热带农业研究所,福建漳州363005

福建省农业科学院作物研究所,福州350013

福建出入境检验检疫局检测中心,福州350001

柠檬香茅精油 气相色谱-质谱(GC-MS) 抑菌作用

福建省公益类项目福建省农业科学院设施农业科技创新项目福建省农科院科技下乡“双百”行动项目福建省公益类项目福建省农业科学院科技创新团队PI项目

2016R1012-62014CX-19sbmb16082015R1013-12016PI-2

2017

10.13304/j.nykjdb.2016.756

中国农业科技导报
中国农村技术开发中心

中国农业科技导报

CSTPCDCSCD北大核心
影响因子：1.252
ISSN：1008-0864
年,卷(期)：2017.19(10)
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