Show simple item record Pagnussatt, Fernanda Arnhold Bretanha, Cristiana Costa Meza, Silvia Leticia Rivero Buffon, Jaqueline Garda Furlong, Eliana Badiale 2014-11-16T00:52:55Z 2014-11-16T00:52:55Z 2013
dc.identifier.citation PAGNUSSATT, Fernanda Arnhold et al.Activity of rice bran proteic extracts against Fusarium graminearum. African Journal of Agricultural Research, v. 8, n. 48, p. 6283-6290, 2013. Disponível em: <>. Acesso em: 07 nov. 2014 pt_BR
dc.identifier.issn 1991-637X
dc.description.abstract The application of natural antifungal substances is motivated by the need for alternatives to existing methods that are not always applicable, efficient, or that do not pose risk to consumers or the environment. Furthermore, studies on the behaviour of toxigenic species in the presence of natural fungicides have enabled their safe application in the food chain. This study aimed to identify the fraction of the rice grain with greater inhibitory activity of amylase and related to its antifungal and antimycotoxigenic potential against Fusarium graminearum CQ 244 biomass. The greatest inhibitory effect was observed in extracts of bran, which inhibited by 90% the fungal amylase activity. The primary fractionation of the rice bran extract was more efficient when ethanolic extracts was precipitated by acetone, resulting in a specific inhibition estimated at 20 μg min-1mg protein1, PF 45 and recovery 61%. The rice bran protein extracts showed fungistatic activity against F. graminearum, with MIC50 of 419 μg ml-1 and 168 mg ml-1 estimated from glucosamine and amylase inhibition, respectively, which cause 63% biomass inhibition and 40% of the nivalenol (NIV) production. pt_BR
dc.language.iso eng pt_BR
dc.rights open access pt_BR
dc.subject Rice pt_BR
dc.subject Fusarium graminearum pt_BR
dc.subject Glucosamine pt_BR
dc.subject Amylase pt_BR
dc.subject Nivalenol (NIV) pt_BR
dc.title Activity of rice bran proteic extracts against Fusarium graminearum pt_BR
dc.type article pt_BR
dc.identifier.doi 10.5897/AJAR2013.7358 pt_BR

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