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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
27/06/2024 |
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Data da última atualização: |
31/07/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
NATARELLI, C., V. L.; BARROS, H. E. A. B.; CARVALHO, E. E. N. de; VILAS BOAS, E. V. de B.; OLIVEIRA, J. E. de; MARCONCINI, J. M. |
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Afiliação: |
FEDERAL UNIVERSITY OF LAVRAS; FEDERAL UNIVERSITY OF LAVRAS; FEDERAL UNIVERSITY OF LAVRAS; FEDERAL UNIVERSITY OF LAVRAS; FEDERAL UNIVERSITY OF LAVRAS; JOSE MANOEL MARCONCINI, CNPDIA. |
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Título: |
Zinc‑Loaded PVA/Zein Nanofbers Applied as Seed Coating. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Polymers and the Environment, v. 32, 2024. |
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Páginas: |
2835 - 2844 |
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DOI: |
https://doi.org/10.1007/s10924-024-03281-x |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract The development of a seed coating with micronutrient release system is of extreme research importance for sustainable agriculture. In this work, a zinc release system was developed, using zinc-loaded PVA/Zein nanofbers. Solution blow spinning was used to produce nanofbers (average diameter of approximately 160 nm), as demonstrated by feld-emission scanning electron microscopy (FE-SEM), with some bead presence, which served as main zinc reservoir, as evidenced by energydispersive X-ray spectroscopy (EDX). Biodegradation assay showed the biodegradability of the PVA/Zein nanofbers with over 30% mass loss after 31 days, an important and desired ability for the proposed application. Encapsulation efciency of the nanofbers was measured at more than 90%. The release profle of zinc-loaded nanofbers was observed to be a two-step release, with an initial burst release (approximately 52% in 3 h) followed by a slow release (approximately 6% in 189 h), which is related to the zinc reservoir in the nanofbers that was observed by EDX and is a profle that is advantageous for the proposed application. Germination assay shows that the seed coating applied to the soybean seeds was efective, with the zinc released from the nanofbers being absorbed by the seeds and, acting as fertilizer, improved some of the analyzed parameters (approximately 24, 59 and 127% increase in shoot length, α-chlorophyll and zinc content, respectively). Results demonstrated that zinc-loaded PVA/Zein nanofbers are a promising material for to be used as seed coating, being able to improve crop performance. MenosAbstract The development of a seed coating with micronutrient release system is of extreme research importance for sustainable agriculture. In this work, a zinc release system was developed, using zinc-loaded PVA/Zein nanofbers. Solution blow spinning was used to produce nanofbers (average diameter of approximately 160 nm), as demonstrated by feld-emission scanning electron microscopy (FE-SEM), with some bead presence, which served as main zinc reservoir, as evidenced by energydispersive X-ray spectroscopy (EDX). Biodegradation assay showed the biodegradability of the PVA/Zein nanofbers with over 30% mass loss after 31 days, an important and desired ability for the proposed application. Encapsulation efciency of the nanofbers was measured at more than 90%. The release profle of zinc-loaded nanofbers was observed to be a two-step release, with an initial burst release (approximately 52% in 3 h) followed by a slow release (approximately 6% in 189 h), which is related to the zinc reservoir in the nanofbers that was observed by EDX and is a profle that is advantageous for the proposed application. Germination assay shows that the seed coating applied to the soybean seeds was efective, with the zinc released from the nanofbers being absorbed by the seeds and, acting as fertilizer, improved some of the analyzed parameters (approximately 24, 59 and 127% increase in shoot length, α-chlorophyll and zinc content, respectively). Results demonstrated that zinc-loaded PVA/Zein nanofbers ... Mostrar Tudo |
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Palavras-Chave: |
Germination assay; Seed coating; Solution blow spinning. |
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Thesaurus Nal: |
biodegradation; encapsulation. |
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Categoria do assunto: |
-- |
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Marc: |
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Registro original: |
Embrapa Instrumentação (CNPDIA) |
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| 5. |  | CASTRO, I. A. de; OLIVEIRA, J. A. de; PARIS, E. C.; GIRALDI, T. R.; RIBEIRO, C. Production of heterostructured TiO2/WO3 nanoparticulated photocatalysts through a simple one pot method. Ceramics international, [S. l.], v. 41, n. 3, p. 3502-3510, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Instrumentação. |
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| 8. | | CASTRO, I. A. de; OLIVEIRA, J. A. de; RIBEIRO, C.; PARIS, E. C.; GIRALDI, T. Nanoestruturas de WO3/TiO2 obtidas pelo método do precursor pplimérico - avaliação das propriedades fotocatalíticas. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 7.; ESCOLA DE NANOTECNOLOGIA, 3., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação, 2013. p. 357-359 Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso. CD-ROM. Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Instrumentação. |
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| 10. | | MENDONÇA, R. J. de; CAMBRAIA, J.; OLIVEIRA, J. A. de; OLIVA, M. A. Efeito do alumínio na absorção e na utilização de macronutrientes em duas cultivares de arroz. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 38, n. 7, p. 843-848, jul. 2003 Título em inglês: Aluminum effects on the uptake and utilization of macronutrients in two rice cultivars.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 11. | | ALVES, R. M. M.; CAMBRAIA, J.; CANO, M. A. O.; OLIVEIRA, J. A. de; RIBEIRO, C. Efeito do alumínio sobre a produção de ácidos orgânicos em dois cultivares de arroz (Oryza sativa L.). In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 10.; CONGRESSO LATINO AMERICANO DE FISIOLOGIA VEGETAL, 12., 2005, Recife. Anais... Recife: SBFV, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| 13. | | MENDONÇA, R. J. de; CAMBRAIA, J.; OLIVA, M. A.; OLIVEIRA, J. A. de. Capacidade de cultivares de arroz de modificar o pH de soluções nutritivas na presença de alumínio. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 5, p. 447-452, maio 2005 Título em inglês: Rice cultivars ability to change nutrient solution pH in the presence of aluminum.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 18. | | SILVEIRA, F. T.; MORO, J. R.; SILVA, H. P. da; OLIVEIRA, J. A. de; PERECIN, D. Herança da resistência ao enfezamento em milho. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 43, n. 12, p. 1717-1723, dez. 2008. Título em inglês: Inheritance of the resistance to corn stunt.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 20. | | ALVES, R. M. M.; CAMBRAIA, J.; CANO, M. A. O.; OLIVEIRA, J. A. de. Exsudação de ácidos orgânicos por dois cultivares de arroz (Oryza sativa L.), submetidos a níveis tóxicos de alumínio. In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 10.; CONGRESSO LATINO AMERICANO DE FISIOLOGIA VEGETAL, 12., 2005, Recife. Anais... Recife: SBFV, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amapá. |
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| Registros recuperados : 69 | |
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