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Natural aflatoxin uptake by sugarcane (Saccharum officinaurum L.) and its persistence in jaggery

Hariprasad, P. and Vipin, A. V. and Karuna, S. and Raksha, R. K. and Venkateswaran, G. (2015) Natural aflatoxin uptake by sugarcane (Saccharum officinaurum L.) and its persistence in jaggery. Environmental Science and Pollution Research, 22. pp. 6246-6253.

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Abstract

The present study focused on aflatoxin (AF) uptake by sugarcanes from contaminated soils, and its persistence in jaggery. Analysis of 25 agricultural soil samples from sugarcane growing fields revealed that 80 % were found contaminated with AF ranging from 0.5 to 22 ppb and all samples harbored aflatoxigenic fungi. Forty percent of the juices extracted from sugarcane grown in contaminated soil recorded AF ranging from 1.0 to 9.5 ppb. Conversely, jaggery prepared from those samples was almost free from AF. Further, greenhouse experiment confirms the AF uptake ability of sugarcane plants. Analysis of sugarcane juice and jaggery collected from local vendor showed 21 % (0.5 to 6.5 ppb) and 5.6 % (0.5– 1.0 ppb) of AF contamination, respectively. Aflatoxigenic Aspergillus flavus strain was evaluated for their ability to grow and produce AF on jaggery medium. At 14th day after inoculation, decreased concentration of AF was recorded in jaggery medium ranging from 0 to 120 mg jaggery/ml, above which AF was absent though the fungal growth was noted. From the results, it could be concluded that sugarcane plants have the ability to uptake AF from contaminated soil, but AF was reduced during jaggery preparation. Also, higher concentration of jaggery was inhibitory to AF production.

Item Type: Article
Uncontrolled Keywords: Sugarcane juice . Jaggery . Aspergillus flavus . Aflatoxin . ELISA
Subjects: 600 Technology > 08 Food technology > 25 Sugar/Starch/Confectionery
Divisions: Food Microbiology
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 18 May 2016 05:38
Last Modified: 18 May 2016 05:38
URI: http://ir.cftri.com/id/eprint/12144

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