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In vitro Antifungal Activity of Dehydrozingerone and its Fungitoxic Properties.

Rahath Kubra, I. and Pushpa, S. Murthy and Jagan Mohan Rao, L. (2013) In vitro Antifungal Activity of Dehydrozingerone and its Fungitoxic Properties. Journal of Food Science, 78 (1). M64-M69.

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The efficacy of Dehydrozingerone (DZ; dehydroderivative of zingerone) as an antifungal agent and its mode of action against food spoilage fungal pathogens was studied and presented. DZ is a constituent of ginger (Zingiber officinale rhizomes) and structural half analogue of curcumin. Its efficacy against Aspergillus oryzae, Aspergillus flavus, Aspergillus niger, Aspergillus ochraceus, Fusarium oxysporum and Penicillium chrysogenum was evaluated. Effect of DZ on the growth and sporulation of A. ochraceus was also studied. The fungal species were susceptible to DZ and the minimum inhibitory concentration and fungicidal concentration ranged from 755 to 911 μM and 880 to 1041 μM respectively. The mycelial and spore germination was significantly inhibited; reduction in the weight of the cell mass, carbohydrate, protein, DNA and RNA constituents in the cells isolated from cultures of A. ochraceus grown with DZ were observed. Scanning electron microscopy studies revealed morphological observations such as cell lysis, inhibition and morphological alterations in hyphae and sporulation in A. ochraceus on treatment with DZ.

Item Type: Article
Uncontrolled Keywords: antifungal, A. ochraceus, Dehydrozingerone, ginger, hyphae
Subjects: 600 Technology > 08 Food technology > 30 Spices/Condiments
600 Technology > 08 Food technology > 31 Food Additives
Divisions: Plantation Products Spices and Flavour Technology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 12 Mar 2013 06:48
Last Modified: 30 Dec 2016 08:26
URI: http://ir.cftri.com/id/eprint/11148

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