The present invention relates to anti-microbial activity of the essential oil of Cymbopogon flexuosus (Nees ex Steud) Wats and the process of isolation of novel sesquiterpene compound which is mainly responsible for the strong anti-microbial/anti-bacterial activity. The present invention particularly relates to anti-bacterial activity of the essential oil and a pure isolate identified as (+)-1-bisabolone of formula 1 against gram positive bacteria from a strain of a grass identified as Cymbopogon flexuosus.

Council of Scientific and Industrial Research

(+)-1-Bisabolone isolated from cymbopogon flexuosus and antibacterial activity thereof

Antibacterial cleaning agent having principally natural active ingredients includes water, soap-nut-derived saponins, polysorbate 20, glycerin, a mixture of essential oils of lemongrass, tea tree, geranium, lavender, and oregano, and extract of grapefruit seed; methods of laundering, cleaning, and bathing using the cleaning agent.

Baker; Shanna

Johnson; Cornelius

Cleaning agent compositions for reducing MRSA transmission

The present invention provides an antimicrobial composition comprising an antimicrobial effective amount (such as a preservative, bactericidal, and/or fungicidal effective amount) of a mixture comprising at least two of: (a) lemon grass oil; (b) cinnamaldehyde, cinnamon oil, Cinnamomum cassia, cinnamon extract, cassia leaf oil, 3,4-dihydroxycinnamic acid or salt thereof, or a mixture thereof; (c) sorbic acid, or a salt thereof; (d) erythorbic acid, or a salt thereof; (e) benzoic acid, or a salt thereof; (f) arabinogalactan, galactoarabinan, or a mixture thereof; (g) a hexahydro-iso-alpha-acid, tetrahydro-iso-alpha-acid, or a mixture thereof; (h) Achillea fragrantissima (Santolina fragrantissima Forssk., lavender cotton) oil; and (i) .delta.-gluconolactone. The present invention also provides a product (preferably a product other than a foodstuff, pharmaceutical, or cosmetic) comprising a preservative effective amount of cinnamaldehyde or a mixture of cinnamaldehyde and one or more alkanol-dialkyl hydantoins.

cymbopogon khasianus/抗菌的

(+)-1-Bisabolone isolated from cymbopogon flexuosus and antibacterial activity thereof

Cleaning agent compositions for reducing MRSA transmission

Antimicrobial compositions

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