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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
05/11/2024 |
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Data da última atualização: |
05/11/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LODI, L. A.; BORGES, R.; BORTOLETTO-SANTOS, R.; OLIVEIRA-PAIVA, C. A.; OLIVEIRA, C. R. de; FARINAS, C. S. |
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Afiliação: |
LUDIMILA A. LODI, UNIVERSIDADE FEDERAL DE SAO CARLOS; ROGER BORGES, UNIVERSIDADE TECNOLÓGICA FEDERAL DO PARANÁ; RICARDO BORTOLETTO-SANTOS, UNIVERSIDADE DE RIBEIRÃO PRETO; CHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS; CAUE RIBEIRO DE OLIVEIRA, CNPDIA; CRISTIANE S. FARINAS, UNIVERSIDADE FEDERAL DE SAO CARLOS. |
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Título: |
Biodegradable PVA-based films for delivery of Bacillus megaterium as seed coating. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Environmental Chemical Engineering, v. 12, 114539, 2024. |
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Idioma: |
Inglês |
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Conteúdo: |
The synthetic polymer Polyvinyl alcohol (PVA) is known for its water solubility, non-toxicity, biodegradability, and high biocompatibility with cells. These characteristics make it a promising vehicle for beneficial microorganisms in sustainable agricultural practices. Here, we developed biodegradable films made of PVA crosslinked with citric acid (in concentrations ranging from 0 % to 30 %) to deliver Bacillus megaterium as seed coating. Physical-chemical and morphological analyses showed promising compatibility between PVA and citric acid, with the latter improving the thermal behavior of the films. The addition of 30 % citric acid significantly reduced the swelling and solubility of the films, thereby increasing their resistance to degradation, a crucial quality for seed coating. The film matrix allowed the controlled release of B. megaterium, keeping the cell viability during six months of storage and under external stresses. After exposure to heat and insecticide, the PVA film with citric acid kept cell viability in the same order as the initial concentration, which was not observed in free bacteria that decreased 2–4 orders of magnitude in cell viability. The film with encapsulated B. megaterium also promoted soybean seed germination rates comparable to treatment with commercial polymer and superior to untreated seeds, demonstrating its viability for agricultural applications. The PVA film crosslinked with citric acid showed promising potential for encapsulating Bacillus megaterium and seed coating, benefiting microorganism protection and seed germination performance. MenosThe synthetic polymer Polyvinyl alcohol (PVA) is known for its water solubility, non-toxicity, biodegradability, and high biocompatibility with cells. These characteristics make it a promising vehicle for beneficial microorganisms in sustainable agricultural practices. Here, we developed biodegradable films made of PVA crosslinked with citric acid (in concentrations ranging from 0 % to 30 %) to deliver Bacillus megaterium as seed coating. Physical-chemical and morphological analyses showed promising compatibility between PVA and citric acid, with the latter improving the thermal behavior of the films. The addition of 30 % citric acid significantly reduced the swelling and solubility of the films, thereby increasing their resistance to degradation, a crucial quality for seed coating. The film matrix allowed the controlled release of B. megaterium, keeping the cell viability during six months of storage and under external stresses. After exposure to heat and insecticide, the PVA film with citric acid kept cell viability in the same order as the initial concentration, which was not observed in free bacteria that decreased 2–4 orders of magnitude in cell viability. The film with encapsulated B. megaterium also promoted soybean seed germination rates comparable to treatment with commercial polymer and superior to untreated seeds, demonstrating its viability for agricultural applications. The PVA film crosslinked with citric acid showed promising potential for encapsulating Bacill... Mostrar Tudo |
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Palavras-Chave: |
Álcool polivinílico. |
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Thesagro: |
Ácido Cítrico; Germinação; Semente. |
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Thesaurus Nal: |
Bacillus megaterium. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02324naa a2200241 a 4500
001 2168844
005 2024-11-05
008 2024 bl uuuu u00u1 u #d
100 1 $aLODI, L. A.
245 $aBiodegradable PVA-based films for delivery of Bacillus megaterium as seed coating.$h[electronic resource]
260 $c2024
520 $aThe synthetic polymer Polyvinyl alcohol (PVA) is known for its water solubility, non-toxicity, biodegradability, and high biocompatibility with cells. These characteristics make it a promising vehicle for beneficial microorganisms in sustainable agricultural practices. Here, we developed biodegradable films made of PVA crosslinked with citric acid (in concentrations ranging from 0 % to 30 %) to deliver Bacillus megaterium as seed coating. Physical-chemical and morphological analyses showed promising compatibility between PVA and citric acid, with the latter improving the thermal behavior of the films. The addition of 30 % citric acid significantly reduced the swelling and solubility of the films, thereby increasing their resistance to degradation, a crucial quality for seed coating. The film matrix allowed the controlled release of B. megaterium, keeping the cell viability during six months of storage and under external stresses. After exposure to heat and insecticide, the PVA film with citric acid kept cell viability in the same order as the initial concentration, which was not observed in free bacteria that decreased 2–4 orders of magnitude in cell viability. The film with encapsulated B. megaterium also promoted soybean seed germination rates comparable to treatment with commercial polymer and superior to untreated seeds, demonstrating its viability for agricultural applications. The PVA film crosslinked with citric acid showed promising potential for encapsulating Bacillus megaterium and seed coating, benefiting microorganism protection and seed germination performance.
650 $aBacillus megaterium
650 $aÁcido Cítrico
650 $aGerminação
650 $aSemente
653 $aÁlcool polivinílico
700 1 $aBORGES, R.
700 1 $aBORTOLETTO-SANTOS, R.
700 1 $aOLIVEIRA-PAIVA, C. A.
700 1 $aOLIVEIRA, C. R. de
700 1 $aFARINAS, C. S.
773 $tJournal of Environmental Chemical Engineering$gv. 12, 114539, 2024.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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