Solubilization of hardly soluble iron phosphate in culture medium

Detalhes bibliográficos
Autor(a) principal: Barroso, Cinthya Babá
Data de Publicação: 2008
Outros Autores: Nahas, Ely
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/79
Resumo: The objective of this work was to evaluate the efficiency of solubilization of FePO4 by Aspergillus niger, in culture medium with different carbon (C) and nitrogen (N) sources, and enhancing concentrations of phosphate. The amount of soluble phosphate, acidity and final pH were determined after the fungus growth in a stationary culture at 30°C. Efficiency of solubilization increased according to fungus growth, reaching the maximum at the 11th day (68%) and later decreased. In relation to C and N sources, the largest efficiencies of solubilization were found with mannitol (21%) and glutamic acid (17%). Increasing phosphate concentration (0 to 1,330 µg mL-1), maximal efficiency of solubilization (70%) was found with 330 µg mL-1 PO43-, and decreased up to 47% with 1,330 µg mL-1 PO43-. The amount of acids produced was the factor that more influenced FePO4 solubilization, based in the positive and significant correlation between phosphate and acidity production.
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spelling Solubilization of hardly soluble iron phosphate in culture mediumSolubilização do fosfato de ferro em meio de culturaAspergillus niger; titratable acidity; carbon sources; nitrogen sources; soluble phosphateAspergillus niger; acidez titulável; fontes de carbono; fontes de nitrogênio; fosfato solúvelThe objective of this work was to evaluate the efficiency of solubilization of FePO4 by Aspergillus niger, in culture medium with different carbon (C) and nitrogen (N) sources, and enhancing concentrations of phosphate. The amount of soluble phosphate, acidity and final pH were determined after the fungus growth in a stationary culture at 30°C. Efficiency of solubilization increased according to fungus growth, reaching the maximum at the 11th day (68%) and later decreased. In relation to C and N sources, the largest efficiencies of solubilization were found with mannitol (21%) and glutamic acid (17%). Increasing phosphate concentration (0 to 1,330 µg mL-1), maximal efficiency of solubilization (70%) was found with 330 µg mL-1 PO43-, and decreased up to 47% with 1,330 µg mL-1 PO43-. The amount of acids produced was the factor that more influenced FePO4 solubilization, based in the positive and significant correlation between phosphate and acidity production.O objetivo deste trabalho foi avaliar a eficiência de solubilização de FePO4 por Aspergillus niger, em meio de cultura com diferentes fontes de carbono (C) e nitrogênio (N) e com concentrações crescentes de fosfato. A quantidade de fosfato solúvel, acidez e pH final foram determinados após o crescimento do fungo, em cultura estacionária a 30°C. A eficiência de solubilização aumentou conforme o crescimento do fungo, atingiu o máximo no 11o dia (68%) e depois regrediu. Das fontes de C e de N testadas, as maiores eficiências de solubilização foram obtidas com manitol (21%) e ácido glutâmico (17%). Com o aumento da concentração de fosfato (0 a 1.330 µg mL-1), a máxima eficiência de solubilização (70%) foi obtida com 330 µg mL-1 de PO43- e decresceu até 47% com 1.330 µg mL-1. A produção de ácidos foi o principal mecanismo de solubilização do FePO4, com base na correlação positiva e significativa entre a produção de fosfato e a acidez.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFAPESPCNPqBarroso, Cinthya BabáNahas, Ely2008-08-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/79Pesquisa Agropecuaria Brasileira; v.43, n.4, abr. 2008; 529-535Pesquisa Agropecuária Brasileira; v.43, n.4, abr. 2008; 529-5351678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/79/5417https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/79/54https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/79/66https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/79/173info:eu-repo/semantics/openAccess2014-05-16T17:40:44Zoai:ojs.seer.sct.embrapa.br:article/79Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-05-16T17:40:44Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Solubilization of hardly soluble iron phosphate in culture medium
Solubilização do fosfato de ferro em meio de cultura
title Solubilization of hardly soluble iron phosphate in culture medium
spellingShingle Solubilization of hardly soluble iron phosphate in culture medium
Barroso, Cinthya Babá
Aspergillus niger; titratable acidity; carbon sources; nitrogen sources; soluble phosphate
Aspergillus niger; acidez titulável; fontes de carbono; fontes de nitrogênio; fosfato solúvel
title_short Solubilization of hardly soluble iron phosphate in culture medium
title_full Solubilization of hardly soluble iron phosphate in culture medium
title_fullStr Solubilization of hardly soluble iron phosphate in culture medium
title_full_unstemmed Solubilization of hardly soluble iron phosphate in culture medium
title_sort Solubilization of hardly soluble iron phosphate in culture medium
author Barroso, Cinthya Babá
author_facet Barroso, Cinthya Babá
Nahas, Ely
author_role author
author2 Nahas, Ely
author2_role author
dc.contributor.none.fl_str_mv
FAPESP
CNPq
dc.contributor.author.fl_str_mv Barroso, Cinthya Babá
Nahas, Ely
dc.subject.por.fl_str_mv Aspergillus niger; titratable acidity; carbon sources; nitrogen sources; soluble phosphate
Aspergillus niger; acidez titulável; fontes de carbono; fontes de nitrogênio; fosfato solúvel
topic Aspergillus niger; titratable acidity; carbon sources; nitrogen sources; soluble phosphate
Aspergillus niger; acidez titulável; fontes de carbono; fontes de nitrogênio; fosfato solúvel
description The objective of this work was to evaluate the efficiency of solubilization of FePO4 by Aspergillus niger, in culture medium with different carbon (C) and nitrogen (N) sources, and enhancing concentrations of phosphate. The amount of soluble phosphate, acidity and final pH were determined after the fungus growth in a stationary culture at 30°C. Efficiency of solubilization increased according to fungus growth, reaching the maximum at the 11th day (68%) and later decreased. In relation to C and N sources, the largest efficiencies of solubilization were found with mannitol (21%) and glutamic acid (17%). Increasing phosphate concentration (0 to 1,330 µg mL-1), maximal efficiency of solubilization (70%) was found with 330 µg mL-1 PO43-, and decreased up to 47% with 1,330 µg mL-1 PO43-. The amount of acids produced was the factor that more influenced FePO4 solubilization, based in the positive and significant correlation between phosphate and acidity production.
publishDate 2008
dc.date.none.fl_str_mv 2008-08-08
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/79
url https://seer.sct.embrapa.br/index.php/pab/article/view/79
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/79/5417
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/79/54
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/79/66
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/79/173
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.43, n.4, abr. 2008; 529-535
Pesquisa Agropecuária Brasileira; v.43, n.4, abr. 2008; 529-535
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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