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Registro Completo |
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
23/06/2021 |
Data da última atualização: |
10/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LODI, L. A.; KLAIC, R.; RIBEIRO, C.; FARINAS, C. S. |
Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA; CRISTIANE SANCHEZ FARINAS, CNPDIA. |
Título: |
A green K-fertilizer using mechanical activation to improve the solubilization of a low-reactivity potassium mineral by Aspergillus niger. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Bioresource Technology Reports, v. 15, e100711, 2021. |
Páginas: |
1-8 |
ISSN: |
2589-014X |
DOI: |
https://doi.org/10.1016/j.biteb.2021.100711 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Biological solubilization; Igneous rock; Mechanical activation; Potassium rock; Submerged cultivation. |
Categoria do assunto: |
-- |
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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Embrapa Instrumentação (CNPDIA) |
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3. | | KLAIC, R.; FÁVARO, C. P.; LODI, L. A.; OLIVEIRA, C. R. de; FARINAS, C. S. Biofertilizantes a partir do uso de fontes de nutrientes de baixa reatividade e microrganismos solubilizadores. In: SIMPÓSIO NACIONAL DE INSTRUMENTAÇÃO AGROPECUÁRIA, 4., 2019, São Carlos, SP. Ciência, inovação e mercado: anais. São Carlos, SP: Embrapa Instrumentação, 2019. Editores: Paulino Ribeiro Villas-Boas, Maria Alice Martins, Débora Marcondes Bastos Pereira Milori, Ladislau Martin Neto. SIAGRO 2019. 375-379Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Instrumentação. |
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Registros recuperados : 3 | |
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