Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina
Manganese (Mn) is toxic at higher concentrations requiring its removal before returning the wastewater to the environment. This article reported the Mn removal of two fungi strains isolated from mine wastewater. ITS rRNA region sequencing identified the fungi strains as Cladosporium halotolerans and...
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doaj-3f76809889a547cfb103856fcb00f3e82020-11-25T02:19:41ZengElsevierBiotechnology Reports2215-017X2020-03-0125Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorinaEster Alves Mota0Érica Barbosa Felestrino1Versiane Albis Leão2Renata Guerra-Sá3Biochemistry and Molecular Biology Laboratory, Department of Biological Sciences, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG, BrazilBiochemistry and Molecular Biology Laboratory, Department of Biological Sciences, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG, BrazilBio & Hydrometallurgy Laboratory, Department of Metallurgical and Materials Engineering, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, MG, Ouro Preto, BrazilBiochemistry and Molecular Biology Laboratory, Department of Biological Sciences, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro, Ouro Preto, MG, Brazil; Corresponding author. Present address: Universidade Federal de Ouro Preto, Departamento de Ciências Biológicas/ Núcleo de Pesquisas em Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, ICEB 2, Sala 045 Campus Morro do Cruzeiro, 35400-000, Ouro Preto, MG, Brazil.Manganese (Mn) is toxic at higher concentrations requiring its removal before returning the wastewater to the environment. This article reported the Mn removal of two fungi strains isolated from mine wastewater. ITS rRNA region sequencing identified the fungi strains as Cladosporium halotolerans and Hypocrea jecorina. Mn2+ removal assays were performed in Sabouraud broth with 50 mg L−1 Mn2+ supplemented and bioleaching assays using MnO2 instead of MnSO4 at the same conditions. C. halotolerans removed 96 % of 50 mg L−1 Mn2+ at two weeks without MnO2 bioleaching with 649.9 mg of biomass and H. jecorina removed about 50 % of Mn2+ in 21 days from initial 50 mg of Mn2+ L-1 with 316.8 mg of biomass. Extracellular laccases were present in C. halotolerans agar regardless of the Mn addition. Mn adsorbed was detected on C. halotolerans hyphae. Mn oxidation was positive to H. jecorina by reaction of its medium with Leucoberbelin blue. Keywords: Hypocrea jecorina, Cladosporium halotolerans, Chelating, Manganese, Mn oxidationhttp://www.sciencedirect.com/science/article/pii/S2215017X19302486 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ester Alves Mota Érica Barbosa Felestrino Versiane Albis Leão Renata Guerra-Sá |
spellingShingle |
Ester Alves Mota Érica Barbosa Felestrino Versiane Albis Leão Renata Guerra-Sá Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina Biotechnology Reports |
author_facet |
Ester Alves Mota Érica Barbosa Felestrino Versiane Albis Leão Renata Guerra-Sá |
author_sort |
Ester Alves Mota |
title |
Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina |
title_short |
Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina |
title_full |
Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina |
title_fullStr |
Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina |
title_full_unstemmed |
Manganese (II) removal from aqueous solutions by Cladosporium halotolerans and Hypocrea jecorina |
title_sort |
manganese (ii) removal from aqueous solutions by cladosporium halotolerans and hypocrea jecorina |
publisher |
Elsevier |
series |
Biotechnology Reports |
issn |
2215-017X |
publishDate |
2020-03-01 |
description |
Manganese (Mn) is toxic at higher concentrations requiring its removal before returning the wastewater to the environment. This article reported the Mn removal of two fungi strains isolated from mine wastewater. ITS rRNA region sequencing identified the fungi strains as Cladosporium halotolerans and Hypocrea jecorina. Mn2+ removal assays were performed in Sabouraud broth with 50 mg L−1 Mn2+ supplemented and bioleaching assays using MnO2 instead of MnSO4 at the same conditions. C. halotolerans removed 96 % of 50 mg L−1 Mn2+ at two weeks without MnO2 bioleaching with 649.9 mg of biomass and H. jecorina removed about 50 % of Mn2+ in 21 days from initial 50 mg of Mn2+ L-1 with 316.8 mg of biomass. Extracellular laccases were present in C. halotolerans agar regardless of the Mn addition. Mn adsorbed was detected on C. halotolerans hyphae. Mn oxidation was positive to H. jecorina by reaction of its medium with Leucoberbelin blue. Keywords: Hypocrea jecorina, Cladosporium halotolerans, Chelating, Manganese, Mn oxidation |
url |
http://www.sciencedirect.com/science/article/pii/S2215017X19302486 |
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