The relationship betweenPleurotus ostreatus andAspergillus flavus and the production of aflatoxin

Ginterová, A.; Polster, M; Janotková, O.

doi:10.1007/bf02876615

Cited by 5 publications

(2 citation statements)

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“…It was found that P. ostreatus could liquidate colonies of A. flavus . However, cultivation of P. ostreatus in the presence of 40–100 µg of AFB1/g of substrate did not result in complete detoxification of the material even after 34 days of co-cultivation, but AFB1 concentration decreased to about one-fourth of the added amount (Ginterová et al 1980 ).…”

Section: Resultsmentioning

confidence: 99%

Aflatoxin B1 degradation during co-cultivation of Aspergillus flavus and Pleurotus ostreatus strains on rice straw

et al. 2014

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Aflatoxin B1 (AFB1) produced by Aspergillus flavus is known to have carcinogenic and teratogenic effects on animal health. Accidental feeding of AFB1-contaminated rice straw may be detrimental to dairy cattle. White-rot basidiomycetous fungus Pleurotus ostreatus can grow on different agronomic wastes by synthesizing different ligninolytic enzymes. These extracellular enzymes are capable of degrading many environmentally hazardous compounds including AFB1. The present study examines the ability of different strains of P. ostreatus to degrade AFB1 in contaminated rice straw. Different strains of A. flavus were inoculated on rice straw for AFB1 production. The moldy straw was then subjected to co-cultivation by different strains of P. ostreatus. The extent of AFB1 degradation was determined by high performance liquid chromatography. Results indicated the presence of AFB1 in the moldy straw samples at levels of 27.95 ± 0.23 and 21.26 ± 0.55 µg/g of dry substrate for A. flavus MTCC 2798 and A. flavus GHBF09, respectively. Co-cultivation of P. ostreatus strains on AFB1-contaminated rice straw revealed their ability to rapidly colonize the substrate by profuse hyphal ramification. Highest degradation of AFB1 (89.41 %) was recorded in the straw containing co-cultures of A. flavus MTCC 2798 and P. ostreatus GHBBF10. Natural isolate P. ostreatus GHBBF10 demonstrated higher AFB1-degradation potential than P.ostreatus MTCC 142. This basidiomycete strain can be further exploited to effectively degrade moderate concentrations of AFB1 in contaminated moldy rice straw.

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Section: Resultsmentioning

confidence: 99%

Aflatoxin B1 degradation during co-cultivation of Aspergillus flavus and Pleurotus ostreatus strains on rice straw

et al. 2014

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“…Actinomycetales of the suborder Corynebacterineae, including Mycobacterium, Rhodococcus, and Norcardia Liu et al, 1998Liu et al, , 2001Cao et al, 2011;Guan et al, 2015 Motomura et al, 2003;Alberts et al, 2009;Das et al, 2014;Yehia 2014;Ginterová et al, 1980 Petchkongkaew et al, 2008;Ma et al, 2012;Fan et al, 2013;Gao et al, 2011 Brachybacterium sp. Ciegler et al, 1966;Smiley and Draughon, 2000;D'Souza and Brackett, 2001;Teniola et al, 2005 Alberts et al, 2006;Teniola et al, 2005;Kong et al, 2012;Eshelli et al, 2015;Cserháti et al, 2013 genera, are known to biodegrade aflatoxin (Taylor et al, 2010).…”

Section: Enzymes Of Bacterial Originmentioning

confidence: 99%

Invited review: Microbe-mediated aflatoxin decontamination of dairy products and feeds

Kim

Lee

et al. 2017

Journal of Dairy Science

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Aspergillus flavus, Aspergillus parasiticus, and Aspergillus nomius contaminate corn, sorghum, rice, peanuts, tree nuts, figs, ginger, nutmeg, and milk. They produce aflatoxins, especially aflatoxin B, which is classified as a Group 1 carcinogen by the International Agency for Research on Cancer. Many studies have focused on aflatoxin removal from food or feed, especially via microbe-mediated mechanisms-either adsorption or degradation. Of the lactic acid bacteria, Lactobacillus rhamnosus GG efficiently binds aflatoxin B, and a peptidoglycan in the bacterium cell wall plays an important role. This ability of L. rhamnosus GG should be applied to the removal of aflatoxin B. Aflatoxin can be removed using other aflatoxin-degrading microorganisms, including bacterial and fungal strains. This review explores microbe-associated aflatoxin decontamination, which may be used to produce aflatoxin-free food or feed.

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Degradation of ochratoxin a and b by the white rot funguspleurotus ostreatus

Engelhardt

2002

Mycotox Res

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Degradation of ochratoxin A (OTA) and B (OTB) by three selected fungi during solid state fermentation of barley contaminated with ochratoxins was compared. In presence of the soil fungusRhizopus japonicus and the white rot fungusPanerochaete chrysosporium more than 60 % of the mycotoxins remained stable, while in the white rot fungusPleurotus ostreatus only 23 % of the initial OTA and 3 % of OTB were detected after a four weeks incubation period. Kinetic studies on mycotoxin degradation byPI ostreatus demonstrated formation of ochratoxin α and presumably ochratoxin β as intermediate products, what indicates that hydrolysis is the first step in OTA and OTB degradation followed by further degradation of the intermediates.

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The relationship betweenPleurotus ostreatus andAspergillus flavus and the production of aflatoxin

Cited by 5 publications

References 4 publications

Aflatoxin B1 degradation during co-cultivation of Aspergillus flavus and Pleurotus ostreatus strains on rice straw

Aflatoxin B1 degradation during co-cultivation of Aspergillus flavus and Pleurotus ostreatus strains on rice straw

Invited review: Microbe-mediated aflatoxin decontamination of dairy products and feeds

Degradation of ochratoxin a and b by the white rot funguspleurotus ostreatus

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