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BY-NC-ND 3.0 license Open Access Published by De Gruyter June 2, 2014

Antibacterial Activity of Citrus reticulata Peel Extracts

  • Gudddadarangavvanahally K. Jayaprakasha EMAIL logo , Pradeep S. Negi , Sagarika Sikder , Lingamallu Jagan Mohanrao and Kurian K. Sakariah

Citrus peels were successively extracted with hexane, chloroform and acetone using a soxhlet extractor. The hexane and chloroform extracts were fractionated into alcohol-soluble and alcohol-insoluble fractions. These fractions were tested against different gram positive and gram negative bacteria. The EtOH-soluble fraction was found to be most effective. Fractionation of EtOH -soluble fraction on silica gel column yielded three polymethoxylated flavones, namely desmethylnobiletin, nobiletin and tangeretin. Their structures were confirm ed by UV, 1H, 13C NMR and mass spectral studies. The findings indicated a potential of these natural compounds as bio preservatives in food applications.

Received: 2000-7-3
Revised: 2000-8-21
Published Online: 2014-6-2
Published in Print: 2000-12-1

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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