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首页> 外文期刊>Indian Perfumer >Essential oil composition and antimicrobial activity of leaves and stem of Stevia rebaudiana Bertoni cultivated in the Western Himalaya, India
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Essential oil composition and antimicrobial activity of leaves and stem of Stevia rebaudiana Bertoni cultivated in the Western Himalaya, India

机译：在印度喜马拉雅山西部种植的甜叶菊甜叶菊的茎和叶的精油成分和抑菌活性

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摘要

Stevia rebaudiana Bertoni, is one of the 154 members of the genus Stevia, produces number of high-potency and low calorie sweeteners in its leaf tissues. It has been used throughout the world as sweetener and medicine. The objectives of present study were to evaluate comparative chemical compositions and antimicrobial activity of essential oil of its leaves and stem. Constituents of both essential oils were characterized with the help of GC and GC-MS and were found to be a complex mixture of mono- and sesquiterpenoids. Major constituents in both of the essential oils were identified as β-elemene, β-caryophyllene, β-famesene, germacrene D, bicyclogermacrene, (E)-nerolidol, spathulenol, and viridiflorol with quantitative variations. Both the oils showed antibacterial activity against Micrococcus luteus. Staphylococcus aureus and antifungal activity against Aspergillus ochraceous, A. flavus and Trichophyton rubrum. Antifungal potential against A. sydowii and A. parasiticus was also observed for the leaves essential oil.
机译：甜叶菊甜叶菊（Stevia rebaudiana Bertoni）是甜叶菊属（Stevia）的154个成员之一，在其叶片组织中产生多种高效能和低卡路里的甜味剂。它已在全世界用作甜味剂和药物。本研究的目的是评估其叶和茎的精油的比较化学组成和抗菌活性。借助GC和GC-MS对两种精油的成分进行了表征，发现它们是单萜和倍半萜的复杂混合物。两种精油中的主要成分均被鉴定为β-榄香烯，β-石竹烯，β-法美烯，germ并丁烯D，双环菊酯，（E）-橙花醇，七叶烯醇和viridiflorol，且存在定量变化。两种油均对黄褐微球菌具有抗菌活性。金黄色葡萄球菌及其对曲霉，黄曲霉和毛癣菌的抗真菌活性。叶片精油还观察到了针对sydowii和A. parasiticus的抗真菌潜力。

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