Taxonomy of mycelial actinobacteria isolated from Saharan soils and their efficiency to reduce aflatoxin B1 content in a solid-based medium

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dc.contributor.authorLahoum, Abdelhadi
dc.contributor.authorVerheecke-Vaessen, Carol
dc.contributor.authorBouras, Noureddine
dc.contributor.authorSabaou, Nasserdine
dc.contributor.authorMathieu, Florence
dc.date.accessioned2017-03-24T14:19:12Z
dc.date.available2017-03-24T14:19:12Z
dc.date.issued2017-02-02
dc.description.abstractAflatoxin B1 (AFB1) is a carcinogenic compound produced by filamentous fungi. In order to reduce AFB1 occurrence in foodstuffs, 13 strains of mycelial actinobacteria were tested in vitro for the efficacy to reduce AFB1 content; all were isolated from the Saharan soils of Algeria. Firstly, morphological study and molecular analysis, based on the 16S rRNA gene, indicated that these strains belong to Actinomadura, Nocardiopsis, Nonomuraea, Saccharothrix and Streptomyces genera. Secondly, each strain’s efficacy to reduce pure AFB1 content was studied in ISP2-medium. After a 4-day incubation at 30°C on AFB1-supplemented medium (5 ppm of AFB1), AFB1 was extracted and quantified. AFB1 content was reduced by all strains (42.9–97.6%). The three most efficient reducers (94.9–97.6%) were two strains belonging to the genus Streptomyces and one to the genus Saccharothrix. Among the latter, strains ACD6 and ABH19 showed no adsorption mechanism involved, suggesting a potential degradation mechanism. These findings led us to suggest that these actinobacterial strains could be used as decontamination treatments for the reduction of AFB1 content.en_UK
dc.identifier.citationAbdelhadi Lahoum, Carol Verheecke-Vaessen, Noureddine Bouras, Nasserdine Sabaou and Florence Mathieu. Taxonomy of mycelial actinobacteria isolated from Saharan soils and their efficiency to reduce aflatoxin B1 content in a solid-based medium. Annals of Microbiology, March 2017, Volume 67, Issue 3, pp 231–237en_UK
dc.identifier.issn1590-4261
dc.identifier.urihttp://dx.doi.org/10.1007/s13213-017-1253-7
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11655
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectMycelial actinobacteriaen_UK
dc.subjectTaxonomyen_UK
dc.subjectMolecular identificationen_UK
dc.subjectAflatoxin B1 decontaminationen_UK
dc.titleTaxonomy of mycelial actinobacteria isolated from Saharan soils and their efficiency to reduce aflatoxin B1 content in a solid-based mediumen_UK
dc.typeArticleen_UK

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