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Identification of difurocumenonol, a new antimicrobial compound from mango ginger (Curcuma amada Roxb.) rhizome.

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JAM-01-07
 
Title Identification of difurocumenonol, a new antimicrobial compound from mango ginger (Curcuma amada Roxb.) rhizome.
 
Creator Policegoudra, R. S.
Divakar, S.
Aradhya, S. M.
 
Subject 30 Spices/Condiments
32 Antioxidants
 
Description AIM: The aim of the present work was to purify and characterize potential natural antibacterial compound from mango ginger (Curcuma amada Roxb.) rhizome. METHODS AND RESULTS: The mango ginger rhizome powder was sequentially extracted and screened for antibacterial activity by agar well diffusion method and broth dilution method. Nonpolar extracts of mango ginger showed high antibacterial activity against gram-positive bacteria with low minimum inhibitory concentration (60-180 ppm). Among five extracts of mango ginger, the chloroform extract demonstrated highest antibacterial activity. Antibacterial activity-guided fractionation of the chloroform extract by repeated silica gel column chromatography yielded pure compound. The purified antibacterial compound was analysed by UV, IR, LC-MS and 2D-HMQCT NMR spectra and was identified as a difurocumenonol, a novel compound not reported previously. CONCLUSIONS: Mango ginger extracts and isolated difurocumenonol demonstrated high antibacterial activity against gram-negative and gram-positive bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY: A novel and natural antibacterial compound as well as mango ginger extracts can be used as food preservative to control the growth of food-borne pathogens and as a source of mango flavour.
 
Date 2007
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/1855/1/Journal_of_Applied_Microbiology_102%286%29_2007_1594-.pdf
Policegoudra, R. S. and Divakar, S. and Aradhya, S. M. (2007) Identification of difurocumenonol, a new antimicrobial compound from mango ginger (Curcuma amada Roxb.) rhizome. Journal of applied microbiology, 102 (6). pp. 1594-602. ISSN 1364-5072