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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
18/05/2023 |
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Data da última atualização: |
12/04/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
RODRIGUES, J. P.; AMANCIO, D.; COELHO, C. C. DE S.; SANTOS JUNIOR, J. DOS; CORRÊA, L.; BARBOZA, H. T. G.; FREITAS-SILVA, O. |
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Afiliação: |
JULIANA PEREIRA RODRIGUES, UNIRIO; DAIANA AMANCIO, UNIRIO; CAROLINE CORRÊA DE SOUZA COELHO, UNIRIO; JAILTON DOS SANTOS JUNIOR, UFRRJ; LUIZ CORRÊA; HENRIQUETA TALITA GUIMARAES BARBOZA, CTAA; OTNIEL FREITAS SILVA, CTAA. |
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Título: |
Antifungal potential of biocomposite films based on alginate and chitosan added with antimicrobial agents. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
In: CONFERÊNCIA INTERNACIONAL DE PROTEÍNAS E COLOIDES ALIMENTARES, 9., 2023, Rio de Janeiro. Anais... Campinas, Galoá, 2023. |
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Idioma: |
Inglês |
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Notas: |
Poster 157717. CIPCA. |
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Conteúdo: |
Active packages are those incorporated with additives such as antioxidants and antimicrobials, which interact directly with food and make it possible to increase its shelf life. This work aimed to develop an active film, elaborated from sodium alginate and chitosan, incorporated with nanoparticles of zinc oxide (ZnOnano) or sodium benzoate (SB), and to evaluate their in vitro antimicrobial potential on phytopathogenic fungi. To develop the composite film-forming solutions of alginate (2% m/v) and chitosan (1% m/v), and additionally, those solutions were crosslinked with calcium chloride at two different concentrations (0.375% or 0.5%). Then, the filmogenic solutions were mixed in a 9:1 ratio (alginate/chitosan). ZnOnano < 50 nm (0.5 mg/mL) or SB (30 mg/L) were added to the filmogenic solution, poured into Petri dishes, and dried in an air circulation oven at 40°C for 16h. Colletotrichum sp., Fusarium sp., and Penicillium sp. were isolated from papaya and orange fruits lesions, cultivated on Potato Dextrose Agar (PDA) medium and purified. The antifungal activity of the films was determined by the agar diffusion method. Spore suspensions (200 µL, 106 CFU/mL) were spread in a Petri dish containing a PDA culture medium. Discs of the films, 1.5 cm in diameter, were exposed to UV light for 5 min, and then deposited on the PDA medium surface. Plates were sealed and stored at 25°C in a BOD chamber for 2 days. Halo formation around the different developed films was evaluated after 48 hours of incubation. Three repetitions of each film were performed, consisting of 3 discs, arranged equidistant from each other. Films without antimicrobial agents were used as controls. The crosslinking factor of the films did not influence the antimicrobial activity against the non-crosslinked films. There was no inhibition halo formation on the films for the three evaluated fungi. However, it was possible to observe on the treatments with ZnOnano, regardless of crosslinking, remained intact and translucent, not observing any type of fungal growth on or under them. The films added with SB and the control film did not show antifungal action on the three tested fungi. Thus, it can be inferred that the effect of the nanocomposites was due to contact and not to diffusion in the medium. The fact that there was no diffusion of nanoparticles into the culture medium may be linked to some factors such as the affinity of the particles with the polymeric matrix, agglomeration of nanoparticles, or even the entrapment of nanoparticles in the compacted polymeric matrix. Fungi from the genera Colletotrichum sp., Fusarium sp., and Penicillium sp. are causal agents of various diseases and are of great importance in the postharvest of various fruits. The films developed containing ZnOnano, due to their antifungal effect, could be applied as postharvest active packaging, since they allow the inhibition of fungal growth by contact, and can minimize losses. MenosActive packages are those incorporated with additives such as antioxidants and antimicrobials, which interact directly with food and make it possible to increase its shelf life. This work aimed to develop an active film, elaborated from sodium alginate and chitosan, incorporated with nanoparticles of zinc oxide (ZnOnano) or sodium benzoate (SB), and to evaluate their in vitro antimicrobial potential on phytopathogenic fungi. To develop the composite film-forming solutions of alginate (2% m/v) and chitosan (1% m/v), and additionally, those solutions were crosslinked with calcium chloride at two different concentrations (0.375% or 0.5%). Then, the filmogenic solutions were mixed in a 9:1 ratio (alginate/chitosan). ZnOnano < 50 nm (0.5 mg/mL) or SB (30 mg/L) were added to the filmogenic solution, poured into Petri dishes, and dried in an air circulation oven at 40°C for 16h. Colletotrichum sp., Fusarium sp., and Penicillium sp. were isolated from papaya and orange fruits lesions, cultivated on Potato Dextrose Agar (PDA) medium and purified. The antifungal activity of the films was determined by the agar diffusion method. Spore suspensions (200 µL, 106 CFU/mL) were spread in a Petri dish containing a PDA culture medium. Discs of the films, 1.5 cm in diameter, were exposed to UV light for 5 min, and then deposited on the PDA medium surface. Plates were sealed and stored at 25°C in a BOD chamber for 2 days. Halo formation around the different developed films was evaluated after 48... Mostrar Tudo |
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Palavras-Chave: |
Active packaging; Antimicrobial; Postharvest. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03755nam a2200229 a 4500
001 2153818
005 2024-04-12
008 2023 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, J. P.
245 $aAntifungal potential of biocomposite films based on alginate and chitosan added with antimicrobial agents.$h[electronic resource]
260 $aIn: CONFERÊNCIA INTERNACIONAL DE PROTEÍNAS E COLOIDES ALIMENTARES, 9., 2023, Rio de Janeiro. Anais... Campinas, Galoá$c2023
500 $aPoster 157717. CIPCA.
520 $aActive packages are those incorporated with additives such as antioxidants and antimicrobials, which interact directly with food and make it possible to increase its shelf life. This work aimed to develop an active film, elaborated from sodium alginate and chitosan, incorporated with nanoparticles of zinc oxide (ZnOnano) or sodium benzoate (SB), and to evaluate their in vitro antimicrobial potential on phytopathogenic fungi. To develop the composite film-forming solutions of alginate (2% m/v) and chitosan (1% m/v), and additionally, those solutions were crosslinked with calcium chloride at two different concentrations (0.375% or 0.5%). Then, the filmogenic solutions were mixed in a 9:1 ratio (alginate/chitosan). ZnOnano < 50 nm (0.5 mg/mL) or SB (30 mg/L) were added to the filmogenic solution, poured into Petri dishes, and dried in an air circulation oven at 40°C for 16h. Colletotrichum sp., Fusarium sp., and Penicillium sp. were isolated from papaya and orange fruits lesions, cultivated on Potato Dextrose Agar (PDA) medium and purified. The antifungal activity of the films was determined by the agar diffusion method. Spore suspensions (200 µL, 106 CFU/mL) were spread in a Petri dish containing a PDA culture medium. Discs of the films, 1.5 cm in diameter, were exposed to UV light for 5 min, and then deposited on the PDA medium surface. Plates were sealed and stored at 25°C in a BOD chamber for 2 days. Halo formation around the different developed films was evaluated after 48 hours of incubation. Three repetitions of each film were performed, consisting of 3 discs, arranged equidistant from each other. Films without antimicrobial agents were used as controls. The crosslinking factor of the films did not influence the antimicrobial activity against the non-crosslinked films. There was no inhibition halo formation on the films for the three evaluated fungi. However, it was possible to observe on the treatments with ZnOnano, regardless of crosslinking, remained intact and translucent, not observing any type of fungal growth on or under them. The films added with SB and the control film did not show antifungal action on the three tested fungi. Thus, it can be inferred that the effect of the nanocomposites was due to contact and not to diffusion in the medium. The fact that there was no diffusion of nanoparticles into the culture medium may be linked to some factors such as the affinity of the particles with the polymeric matrix, agglomeration of nanoparticles, or even the entrapment of nanoparticles in the compacted polymeric matrix. Fungi from the genera Colletotrichum sp., Fusarium sp., and Penicillium sp. are causal agents of various diseases and are of great importance in the postharvest of various fruits. The films developed containing ZnOnano, due to their antifungal effect, could be applied as postharvest active packaging, since they allow the inhibition of fungal growth by contact, and can minimize losses.
653 $aActive packaging
653 $aAntimicrobial
653 $aPostharvest
700 1 $aAMANCIO, D.
700 1 $aCOELHO, C. C. DE S.
700 1 $aSANTOS JUNIOR, J. DOS
700 1 $aCORRÊA, L.
700 1 $aBARBOZA, H. T. G.
700 1 $aFREITAS-SILVA, O.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Meio-Norte; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
20/02/2009 |
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Data da última atualização: |
30/09/2022 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
CARVALHO, H. W. L. de; CARDOSO, M. J.; ROCHA, L. M. P. da; PACHECO, C. A. P.; OLIVEIRA, I. R. de; TABOSA, J. N.; LIRA, M. A.; OLIVEIRA, E. A. S.; MACEDO, J. J. G. de; NASCIMENTO, M. M. A. do; SIMPLÍCIO, J. B.; COUTINHO, G. V.; BRITO, A. R. de M. B.; TAVARES, J. A.; TAVARES FILHO, J. J.; MELO, K. E. de O.; FEITOSA, L. F.; MENEZES, A. F.; RODRIGUES, C. S.; SILVA, B. S. de F. |
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Afiliação: |
HELIO WILSON LEMOS DE CARVALHO, CPATC; MILTON JOSE CARDOSO, CPAMN; LEONARDO MELO PEREIRA DA ROCHA, CNPMS; CLESO ANTONIO PATTO PACHECO, CPATC; IVENIO RUBENS DE OLIVEIRA, CNPMS; JOSE NILDO TABOSA, IPA; MARCELO ADON LIRA, EMPARN; EDSON ALVA SOUZA OLIVEIRA, EBDA; JOSE JAIRO GAMA DE MACEDO, EBDA; MARTA MARIA AMANCIO DO NASCIMENTO, IPA; JOSIMAR BENTO SIMPLICIO, IPA; GISELDO VIEGAS COUTINHO, IPA; ANA RITA DE MORAIS BRANDAO BRITO, IPA; JOSE ALVES TAVARES, IPA; OSE JORGE TAVARES FILHO, IPA; KATIA ESTELINA DE OLIVEIRA MELO, ESTAGIARIA EMBRAPA; LIVIA FREIRE FEITOSA, BOLSISTA PIBIC/CNPq EMBRAPA; ALBA FREITAS MENEZES, ESTAGIÁRIA EMBRAPA; CINTHIA SOUZA RODRUIGES, BOLSISTA PIBIC/CNOPq EMBRAPA; BRUNO SANTANA DE FREITAS SILVA, ESTAGIÁRIO EMBRAPA. |
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Título: |
Desempenho de cultivares de milho na região agreste do nordeste brasileiro: safra 2008. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Aracaju: Embrapa Tabuleiros Costeiros, 2008. |
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Série: |
(Embrapa Tabuleiros Costeiros. Comunicado Técnico, 83). |
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Idioma: |
Português |
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Palavras-Chave: |
Cultivar. |
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Thesagro: |
Características Agronômicas; Milho; Rendimento; Variedade. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/38630/1/CT-83-cpatc.pdf
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Marc: |
LEADER 01184nam a2200397 a 4500
001 1372688
005 2022-09-30
008 2008 bl uuuu u0uu1 u #d
100 1 $aCARVALHO, H. W. L. de
245 $aDesempenho de cultivares de milho na região agreste do nordeste brasileiro$bsafra 2008.
260 $aAracaju: Embrapa Tabuleiros Costeiros$c2008
490 $a(Embrapa Tabuleiros Costeiros. Comunicado Técnico, 83).
650 $aCaracterísticas Agronômicas
650 $aMilho
650 $aRendimento
650 $aVariedade
653 $aCultivar
700 1 $aCARDOSO, M. J.
700 1 $aROCHA, L. M. P. da
700 1 $aPACHECO, C. A. P.
700 1 $aOLIVEIRA, I. R. de
700 1 $aTABOSA, J. N.
700 1 $aLIRA, M. A.
700 1 $aOLIVEIRA, E. A. S.
700 1 $aMACEDO, J. J. G. de
700 1 $aNASCIMENTO, M. M. A. do
700 1 $aSIMPLÍCIO, J. B.
700 1 $aCOUTINHO, G. V.
700 1 $aBRITO, A. R. de M. B.
700 1 $aTAVARES, J. A.
700 1 $aTAVARES FILHO, J. J.
700 1 $aMELO, K. E. de O.
700 1 $aFEITOSA, L. F.
700 1 $aMENEZES, A. F.
700 1 $aRODRIGUES, C. S.
700 1 $aSILVA, B. S. de F.
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