Bioactivity and Chemical Composition of Essential Oils from Three Chemotypes of Aeollanthus pubescens Benth

Q3 Chemistry

Natural product sciences Pub Date : 2023-09-30 DOI:10.20307/nps.2023.29.3.162

Kodjo Eloh, Oudjaniyobi Simalou, Sassou Mégnassan, Hélène Afantchao, Marie-France Bakaï, Koffi Koba, Pierluigi Caboni

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引用次数: 0

Abstract

Aeollanthus pubescens Benth. (Lamiaceae) is a herbaceous plant that is native to West Africa. It is commonly used in cooking and traditional healing in some parts of Togo and Benin. This study analyzed the chemical compositions of essential oils obtained from different parts of Togo (Kozah, Est-Mono, and Ogou) using gas chromatography-mass spectrometry. Additionally, the study investigated the bioactivity of essential oils and water extracts on the cowpea weevil Callosobruchus maculatus, plant parasitic nematode Meloidogyne incognita, and two plant seeds, Sesamum indicum, and Pennisetum glaucum, regarding germination inhibition. The results showed that the major components of the different essential oils were thymol (55.02%) and thymol acetate (20.03%) for Kozah, D-fenchone (65.05%) for Est-Mono, and thymol (29.48%), carvacrol (20.93%), thymol acetate (16.98%), and carvacryl acetate (13.14%) for Ogou. The Est-Mono essential oil was the most effective in controlling cowpea weevils with an EC50 value of 3.1 ± 0.6 μL/L air. Kozah and Ogou essential oils showed more potent nematicidal activity with ECSUB50/72h/SUB values of 305.4 ± 7.3 mg/L and 275.6 ± 2.6 mg/L, respectively, while Est-Mono essential oil did not exhibit any activity. Finally, the Kozah and Ogou essential oils were found to inhibit the germination of dicotyledonous S. indicum seeds by more than 80% at 10 mg/mL, while less germicidal activity was observed on the monocotyledon P. glaucum from the different essential oils. These findings suggest that extracts of A. pubescens could be used in agriculture as a biopesticide.

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三种化学型短毛风精油的生物活性及化学成分研究

被风柔毛底。(Lamiaceae)是一种草本植物，原产于西非。在多哥和贝宁的一些地区，它通常用于烹饪和传统治疗。本研究采用气相色谱-质谱联用技术分析了从多哥不同地区(Kozah、Est-Mono和Ogou)获得的精油的化学成分。此外，本研究还研究了精油和水提取物对豇豆象鼻虫Callosobruchus maculatus、植物寄生线虫Meloidogyne incognita以及两种植物种子Sesamum indicum和Pennisetum glaucum的抑制萌发的生物活性。结果表明，不同挥发油的主要成分为百里香酚(55.02%)和乙酸百里香酚(20.03%)，Est-Mono挥发油的主要成分为D-fenchone (65.05%)， Ogou挥发油的主要成分为百里香酚(29.48%)、香芹酚(20.93%)、乙酸百里香酚(16.98%)和乙酸香芹酯(13.14%)。Est-Mono精油对豇豆象鼻虫的防治效果最好，EC50值为3.1±0.6 μL/L。精油的ECSUB50/72h/SUB值分别为305.4±7.3 mg/L和275.6±2.6 mg/L，而Est-Mono精油则无活性。结果表明，在10 mg/mL浓度下，枸杞精油和奥沟精油对双子叶紫花苜蓿种子萌发的抑制作用大于80%，而对单子叶紫花苜蓿种子萌发的抑制作用较弱。这些研究结果表明，短毛草提取物可作为生物农药在农业上的应用。

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来源期刊

Natural product sciences Chemistry-Organic Chemistry

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： Natural Product Sciences is the official publication of the Korean Society of Pharmacognosy which was launched in 1995. The journal is published quarterly at the end of March, June, September, and December each year and the official title of the journal is abbreviated title as "Nat. Prod. Sci." The research papers on original work, either experimental or theoretical, that advance our understanding of natural product sciences, including important questions of phytochemistry, chemistry, and bio-chemistry of natural resources will be published. Timely reviews and commentaries on recent progress in active areas of natural products research will be also published.