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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/06/2021 |
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Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LODI, L. A.; KLAIC, R.; RIBEIRO, C.; FARINAS, C. S. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA; CRISTIANE SANCHEZ FARINAS, CNPDIA. |
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Título: |
A green K-fertilizer using mechanical activation to improve the solubilization of a low-reactivity potassium mineral by Aspergillus niger. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Bioresource Technology Reports, v. 15, e100711, 2021. |
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Páginas: |
1-8 |
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ISSN: |
2589-014X |
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DOI: |
https://doi.org/10.1016/j.biteb.2021.100711 |
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Idioma: |
Inglês |
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Conteúdo: |
Here, we investigated process engineering strategies to improve the biological solubilization of K-feldspar, a lowreactivity potassium mineral, aiming to obtain a green K-fertilizer for agricultural applications. The results using submerged cultivation of Aspergillus niger showed that the biological K-solubilization of pristine K-feldspar rock released up to 15.87% (reaching 220 mg L− 1 after 3 days) when using 5% glucose as carbon source and initial pH 4, without a preculture step. Besides medium acidification, the microorganism-mineral physical interaction played a key role in promoting K-solubilization. Furthermore, prior mechanical activation of the K-feldspar led to substantial increases of up to 172% in K release (reaching 326.86 mg L− 1 ), compared to the original mineral, and reduced the K-solubilization cultivation time to only 24 h. The results demonstrated the potential of integrating mechanical activation with biological solubilization to advance on the use of low-solubility potassium minerals as K-fertilizers, thus contributing to a more sustainable agriculture. |
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Palavras-Chave: |
Biological solubilization; Igneous rock; Mechanical activation; Potassium rock; Submerged cultivation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01905naa a2200253 a 4500
001 2132518
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a2589-014X
024 7 $ahttps://doi.org/10.1016/j.biteb.2021.100711$2DOI
100 1 $aLODI, L. A.
245 $aA green K-fertilizer using mechanical activation to improve the solubilization of a low-reactivity potassium mineral by Aspergillus niger.$h[electronic resource]
260 $c2021
300 $a1-8
520 $aHere, we investigated process engineering strategies to improve the biological solubilization of K-feldspar, a lowreactivity potassium mineral, aiming to obtain a green K-fertilizer for agricultural applications. The results using submerged cultivation of Aspergillus niger showed that the biological K-solubilization of pristine K-feldspar rock released up to 15.87% (reaching 220 mg L− 1 after 3 days) when using 5% glucose as carbon source and initial pH 4, without a preculture step. Besides medium acidification, the microorganism-mineral physical interaction played a key role in promoting K-solubilization. Furthermore, prior mechanical activation of the K-feldspar led to substantial increases of up to 172% in K release (reaching 326.86 mg L− 1 ), compared to the original mineral, and reduced the K-solubilization cultivation time to only 24 h. The results demonstrated the potential of integrating mechanical activation with biological solubilization to advance on the use of low-solubility potassium minerals as K-fertilizers, thus contributing to a more sustainable agriculture.
653 $aBiological solubilization
653 $aIgneous rock
653 $aMechanical activation
653 $aPotassium rock
653 $aSubmerged cultivation
700 1 $aKLAIC, R.
700 1 $aRIBEIRO, C.
700 1 $aFARINAS, C. S.
773 $tBioresource Technology Reports$gv. 15, e100711, 2021.
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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