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Antimicrobial activity of volatile components and various extracts of the red alga Jania rubens
N Ulku Karabay-Yavasoglu1, Atakan Sukatar, Guven Ozdemir
1Ege University, Faculty of Science, Department of Biology, 35100 Bornova, Izmir, Turkey.
Abstract:
The methanol, dichloromethane, hexane, chloroform and volatile oil extracts of the red alga Jania rubens were tested in vitro for their antimicrobial activity (five Gram-positive, four Gram-negative bacteria and Candida albicans ATCC 10239). GC-MS analysis of the volatile components of J. rubens identified 40 compounds which constituted 77.53% of the total. The volatile components of J. rubens consisted of n-docosane (6.35%), n-eicosane (5.77%) and n-tetratriacontane (5.58%) as major components. The methanol and chloroform extracts (4 mg/disc) showed more potent antimicrobial activity than the hexane and dichloromethane extracts and the volatile oil of J. rubens.
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