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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: |
14/12/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
RODRIGUES, J. P.; COELHO, C. C. DE S.; HIDALGO CHÁVEZ, D. W.; AMANCIO, D.; SOARES, A. G.; FREITAS-SILVA, O. |
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Afiliação: |
JULIANA PEREIRA RODRIGUES, UNIRIO; CAROLINE CORRÊA DE SOUZA COELHO, UNIRIO; DAVY WILLIAM HIDALGO CHÁVEZ, UFRRJ; DAIANA AMANCIO, UNIRIO; ANTONIO GOMES SOARES, CTAA; OTNIEL FREITAS SILVA, CTAA. |
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Título: |
Development and characterization of biocomposite films based on alginate and chitosan for use as postharvest fruit packaging. |
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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 157716.Eixo temático: Colóides para filmes comestíveis. CIPCA. |
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Conteúdo: |
Postharvest diseases caused by fungi are reported as one of the main causes of food loss, mainly in the fruit and vegetable (FV) sector. Antimicrobials, such as zinc oxide nanoparticles (ZnOnano) and sodium benzoate (SB), have shown good results as postharvest technology for the FV sector, increasing the food shelf life and reducing losses. This work aimed to develop and characterize films made from sodium alginate and chitosan composites, incorporated with ZnOnano or SB to be used as postharvest fruit packaging. To develop the composite film-forming solutions of alginate (2% m/v) and chitosan (1% m/v) were prepared and mixed in a 9:1 ratio (alginate/chitosan). The alginate crosslinking process was carried out before mixing by crosslinking the polymer with calcium chloride at two different concentrations (0.375% or 0.5%). ZnOnano < 50 nm (0.5 mg/mL) or SB (30 mg/L) were added to the filmogenic solution, plated into Petri dishes, and dried in air circulation oven at 40°C/16 h. The different films obtained were analyzed for their visual appearance, color, opacity, thickness, mechanical properties, humidity, and solubility in water. The statistical analysis was performed by two-way ANOVA, Tukey, and Scott-Knott with 5% of significance. The studied polymeric composition provided plastic and flexible films, with a homogeneous visual appearance regardless of the crosslinking agent concentration or the addition of different antimicrobials. The films added with ZnOnano presented more cohesive appearance than the other films and all of them presented a yellowish color tone, provided by the higher alginate proportion used in the formulation, where the parameter b*, which measures the variation between shades of blue and yellow, showed positive values between 9.31 ± 0.789 and 11.5 ± 3.37. The films showed high transparency, confirmed by the values of low opacity600 nm, lying between 0.99 ± 0,08 and 2.35 ± 1,03. The crosslinking process and the addition of ZnOnano could change the film's physical properties, leaving them with less thickness, higher rupture tension, lower elongation at break, and higher Young's modulus, when compared to non-crosslinked films and without the addition of antimicrobials. The average moisture content of films with lower crosslinking (18.7 ± 1.241%) was higher when compared to the average of films with higher crosslinking (17.11 ± 0.586%). The films incorporated by different antimicrobial agents also showed significant moisture averages when compared to films without them. The addition of antimicrobial agents probably increased the hygroscopicity of the films, and the cross-linking agent concentration did not influence this variable. All films were highly soluble in water (54.9 ± 3.55 - 80.9 ± 11.4%) after 24h indicating that the crosslinking process and the change in the film's structure with ZnOnano, were not enough to make them less soluble. Despite the structural change that occurred in the films with crosslinking and the addition of ZnOnano, new experiments need to be performed, increasing the concentration of the crosslinking agent to reduce the solubility of the films and enable their use as food packaging. MenosPostharvest diseases caused by fungi are reported as one of the main causes of food loss, mainly in the fruit and vegetable (FV) sector. Antimicrobials, such as zinc oxide nanoparticles (ZnOnano) and sodium benzoate (SB), have shown good results as postharvest technology for the FV sector, increasing the food shelf life and reducing losses. This work aimed to develop and characterize films made from sodium alginate and chitosan composites, incorporated with ZnOnano or SB to be used as postharvest fruit packaging. To develop the composite film-forming solutions of alginate (2% m/v) and chitosan (1% m/v) were prepared and mixed in a 9:1 ratio (alginate/chitosan). The alginate crosslinking process was carried out before mixing by crosslinking the polymer with calcium chloride at two different concentrations (0.375% or 0.5%). ZnOnano < 50 nm (0.5 mg/mL) or SB (30 mg/L) were added to the filmogenic solution, plated into Petri dishes, and dried in air circulation oven at 40°C/16 h. The different films obtained were analyzed for their visual appearance, color, opacity, thickness, mechanical properties, humidity, and solubility in water. The statistical analysis was performed by two-way ANOVA, Tukey, and Scott-Knott with 5% of significance. The studied polymeric composition provided plastic and flexible films, with a homogeneous visual appearance regardless of the crosslinking agent concentration or the addition of different antimicrobials. The films added with ZnOnano presented mor... Mostrar Tudo |
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Palavras-Chave: |
Biocomposite; Postharvest. |
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Thesaurus Nal: |
Nanoparticles. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04021nam a2200217 a 4500
001 2153819
005 2023-12-14
008 2023 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, J. P.
245 $aDevelopment and characterization of biocomposite films based on alginate and chitosan for use as postharvest fruit packaging.$h[electronic resource]
260 $aIn: CONFERÊNCIA INTERNACIONAL DE PROTEÍNAS E COLOIDES ALIMENTARES, 9., 2023, Rio de Janeiro. Anais... Campinas, Galoá$c2023
500 $aPoster 157716.Eixo temático: Colóides para filmes comestíveis. CIPCA.
520 $aPostharvest diseases caused by fungi are reported as one of the main causes of food loss, mainly in the fruit and vegetable (FV) sector. Antimicrobials, such as zinc oxide nanoparticles (ZnOnano) and sodium benzoate (SB), have shown good results as postharvest technology for the FV sector, increasing the food shelf life and reducing losses. This work aimed to develop and characterize films made from sodium alginate and chitosan composites, incorporated with ZnOnano or SB to be used as postharvest fruit packaging. To develop the composite film-forming solutions of alginate (2% m/v) and chitosan (1% m/v) were prepared and mixed in a 9:1 ratio (alginate/chitosan). The alginate crosslinking process was carried out before mixing by crosslinking the polymer with calcium chloride at two different concentrations (0.375% or 0.5%). ZnOnano < 50 nm (0.5 mg/mL) or SB (30 mg/L) were added to the filmogenic solution, plated into Petri dishes, and dried in air circulation oven at 40°C/16 h. The different films obtained were analyzed for their visual appearance, color, opacity, thickness, mechanical properties, humidity, and solubility in water. The statistical analysis was performed by two-way ANOVA, Tukey, and Scott-Knott with 5% of significance. The studied polymeric composition provided plastic and flexible films, with a homogeneous visual appearance regardless of the crosslinking agent concentration or the addition of different antimicrobials. The films added with ZnOnano presented more cohesive appearance than the other films and all of them presented a yellowish color tone, provided by the higher alginate proportion used in the formulation, where the parameter b*, which measures the variation between shades of blue and yellow, showed positive values between 9.31 ± 0.789 and 11.5 ± 3.37. The films showed high transparency, confirmed by the values of low opacity600 nm, lying between 0.99 ± 0,08 and 2.35 ± 1,03. The crosslinking process and the addition of ZnOnano could change the film's physical properties, leaving them with less thickness, higher rupture tension, lower elongation at break, and higher Young's modulus, when compared to non-crosslinked films and without the addition of antimicrobials. The average moisture content of films with lower crosslinking (18.7 ± 1.241%) was higher when compared to the average of films with higher crosslinking (17.11 ± 0.586%). The films incorporated by different antimicrobial agents also showed significant moisture averages when compared to films without them. The addition of antimicrobial agents probably increased the hygroscopicity of the films, and the cross-linking agent concentration did not influence this variable. All films were highly soluble in water (54.9 ± 3.55 - 80.9 ± 11.4%) after 24h indicating that the crosslinking process and the change in the film's structure with ZnOnano, were not enough to make them less soluble. Despite the structural change that occurred in the films with crosslinking and the addition of ZnOnano, new experiments need to be performed, increasing the concentration of the crosslinking agent to reduce the solubility of the films and enable their use as food packaging.
650 $aNanoparticles
653 $aBiocomposite
653 $aPostharvest
700 1 $aCOELHO, C. C. DE S.
700 1 $aHIDALGO CHÁVEZ, D. W.
700 1 $aAMANCIO, D.
700 1 $aSOARES, A. 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 Caprinos e Ovinos; Embrapa Semiárido; Embrapa Solos. |
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Data corrente: |
11/01/2021 |
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Data da última atualização: |
12/02/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
RANGEL, J. H. de A.; MORAES, S. A. de; TONUCCI, R. G.; AMARAL, A. J. do; ZONTA, J. H.; SOUZA, S. F. de; SANTOS, R. D. dos; MUNIZ, E. N.; PIOVEZAN, U. |
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Afiliação: |
JOSE HENRIQUE DE ALBUQUERQUE RANGEL, CPATC; SALETE ALVES DE MORAES, CPATSA; RAFAEL GONCALVES TONUCCI, CNPC; ANDRE JULIO DO AMARAL, CNPS; JOAO HENRIQUE ZONTA, CNPA; SAMUEL FIGUEIREDO DE SOUZA, CPATC; RAFAEL DANTAS DOS SANTOS, CPATSA; EVANDRO NEVES MUNIZ, CPATC; UBIRATAN PIOVEZAN, CPATC. |
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Título: |
Sistemas de integração lavoura-pecuária-floresta: uma análise temporal de sua utilização no Semiárido brasileiro. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Científica de Produção Animal, v. 22, n. 2, p. 81-89, 2020. |
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DOI: |
http://dx.doi.org/10.5935/2176-4158/rcpa.v22n2p81-89 |
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Idioma: |
Português |
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Conteúdo: |
Resumo: A integração lavoura-pecuária-floresta (ILPF) tem como princípio básico a sustentabilidade dos empreendimentos agropecuários nos aspectos econômicos sociais e ambientais. Tal premissa é de vital importância para qualquer intervenção humana no bioma Caatinga no intuito de aumentar a produtividade e lucratividade agrícola ou pecuária nesse bioma, visto ser esse o mais vulnerável entre todos os biomas brasileiros. Técnicas de manipulação do estrato arbóreo/arbustivo da Caatinga e introdução de culturas e pastagens são capazes de garantir aumentos significativos da produtividade agropecuária desse bioma, sem, no entanto, infringir perdas na sua sustentabilidade ambiental. Na parte mais Leste do semiárido, transição da Caatinga para a Mata Atlântica existe uma zona denominada Agreste que, embora ainda considerada semiárida, tem precipitações mais elevadas e menos erráticas. Aí a vegetação nativa de Caatinga foi removida em grande parte, dando lugar a lavouras de milho, feijão e a pecuária. Apesar dessa melhor condição pluviométrica ocorrem períodos de escassez de chuvas, além de crescente esgotamento da fertilidade dos solos, que conduzem a uma queda de produtividade das lavouras e degradação das pastagens. Sistema de ILPF para recuperação das pastagens e maior sustentabilidade dos sistemas de cultivo, começam a ser disponibilizados. [Crop-livestock-forest integration systems: a temporal analysis of their use in the Brazilian Semiarid region]. Abstract: The basic principle of crop-livestock-forestry integration (CLFI) is the sustainability of agricultural enterprises in the social, economic and environmental aspects. This premise is of vital importance for any human intervention in the Caatinga biome in order to increase productivity and agricultural or livestock profitability in that biome, as this is the most vulnerable among all Brazilian biomes. Techniques for manipulating the Caatinga tree / shrub stratum and introducing crops and pastures are able to guarantee significant increases in agricultural productivity in this biome, without, however, infringing losses in its environmental sustainability. In the most eastern part of the semiarid, transition from the Caatinga to the Atlantic Forest, there is an area called Agreste which, although still considered semi-arid, has higher and less erratic rainfall. There, the native Caatinga vegetation was largely removed, giving way to corn, beans and livestock. Despite this better rainfall, there are periods of scarcity of rainfall, in addition to increasing depletion of soil fertility, which leads to a fall in crop productivity and degradation of pastures. CLFI system for the recovery of pastures and greater sustainability of cultivation systems are beginning to be made available. MenosResumo: A integração lavoura-pecuária-floresta (ILPF) tem como princípio básico a sustentabilidade dos empreendimentos agropecuários nos aspectos econômicos sociais e ambientais. Tal premissa é de vital importância para qualquer intervenção humana no bioma Caatinga no intuito de aumentar a produtividade e lucratividade agrícola ou pecuária nesse bioma, visto ser esse o mais vulnerável entre todos os biomas brasileiros. Técnicas de manipulação do estrato arbóreo/arbustivo da Caatinga e introdução de culturas e pastagens são capazes de garantir aumentos significativos da produtividade agropecuária desse bioma, sem, no entanto, infringir perdas na sua sustentabilidade ambiental. Na parte mais Leste do semiárido, transição da Caatinga para a Mata Atlântica existe uma zona denominada Agreste que, embora ainda considerada semiárida, tem precipitações mais elevadas e menos erráticas. Aí a vegetação nativa de Caatinga foi removida em grande parte, dando lugar a lavouras de milho, feijão e a pecuária. Apesar dessa melhor condição pluviométrica ocorrem períodos de escassez de chuvas, além de crescente esgotamento da fertilidade dos solos, que conduzem a uma queda de produtividade das lavouras e degradação das pastagens. Sistema de ILPF para recuperação das pastagens e maior sustentabilidade dos sistemas de cultivo, começam a ser disponibilizados. [Crop-livestock-forest integration systems: a temporal analysis of their use in the Brazilian Semiarid region]. Abstract: The basic principl... Mostrar Tudo |
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Palavras-Chave: |
Agropecuária digital; Análise de imagem; Brasil; Digital agriculture; ILPF; Integração Lavoura pecuária Floresta; Nordeste; Precison livestock farm; Sistema CBL; Sistemas agrosilvipastoril; Sustentabilidade ecológica; Zootecnia de precisão. |
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Thesagro: |
Caatinga; Comportamento Animal; Sistema de Produção. |
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Thesaurus NAL: |
Animal behavior; Brazil; Image analysis; Integrated agricultural systems; Semiarid soils. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220111/1/CNPC-2020-Art-30.pdf
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Marc: |
LEADER 04283naa a2200469 a 4500
001 2130020
005 2021-02-12
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.5935/2176-4158/rcpa.v22n2p81-89$2DOI
100 1 $aRANGEL, J. H. de A.
245 $aSistemas de integração lavoura-pecuária-floresta$buma análise temporal de sua utilização no Semiárido brasileiro.$h[electronic resource]
260 $c2020
520 $aResumo: A integração lavoura-pecuária-floresta (ILPF) tem como princípio básico a sustentabilidade dos empreendimentos agropecuários nos aspectos econômicos sociais e ambientais. Tal premissa é de vital importância para qualquer intervenção humana no bioma Caatinga no intuito de aumentar a produtividade e lucratividade agrícola ou pecuária nesse bioma, visto ser esse o mais vulnerável entre todos os biomas brasileiros. Técnicas de manipulação do estrato arbóreo/arbustivo da Caatinga e introdução de culturas e pastagens são capazes de garantir aumentos significativos da produtividade agropecuária desse bioma, sem, no entanto, infringir perdas na sua sustentabilidade ambiental. Na parte mais Leste do semiárido, transição da Caatinga para a Mata Atlântica existe uma zona denominada Agreste que, embora ainda considerada semiárida, tem precipitações mais elevadas e menos erráticas. Aí a vegetação nativa de Caatinga foi removida em grande parte, dando lugar a lavouras de milho, feijão e a pecuária. Apesar dessa melhor condição pluviométrica ocorrem períodos de escassez de chuvas, além de crescente esgotamento da fertilidade dos solos, que conduzem a uma queda de produtividade das lavouras e degradação das pastagens. Sistema de ILPF para recuperação das pastagens e maior sustentabilidade dos sistemas de cultivo, começam a ser disponibilizados. [Crop-livestock-forest integration systems: a temporal analysis of their use in the Brazilian Semiarid region]. Abstract: The basic principle of crop-livestock-forestry integration (CLFI) is the sustainability of agricultural enterprises in the social, economic and environmental aspects. This premise is of vital importance for any human intervention in the Caatinga biome in order to increase productivity and agricultural or livestock profitability in that biome, as this is the most vulnerable among all Brazilian biomes. Techniques for manipulating the Caatinga tree / shrub stratum and introducing crops and pastures are able to guarantee significant increases in agricultural productivity in this biome, without, however, infringing losses in its environmental sustainability. In the most eastern part of the semiarid, transition from the Caatinga to the Atlantic Forest, there is an area called Agreste which, although still considered semi-arid, has higher and less erratic rainfall. There, the native Caatinga vegetation was largely removed, giving way to corn, beans and livestock. Despite this better rainfall, there are periods of scarcity of rainfall, in addition to increasing depletion of soil fertility, which leads to a fall in crop productivity and degradation of pastures. CLFI system for the recovery of pastures and greater sustainability of cultivation systems are beginning to be made available.
650 $aAnimal behavior
650 $aBrazil
650 $aImage analysis
650 $aIntegrated agricultural systems
650 $aSemiarid soils
650 $aCaatinga
650 $aComportamento Animal
650 $aSistema de Produção
653 $aAgropecuária digital
653 $aAnálise de imagem
653 $aBrasil
653 $aDigital agriculture
653 $aILPF
653 $aIntegração Lavoura pecuária Floresta
653 $aNordeste
653 $aPrecison livestock farm
653 $aSistema CBL
653 $aSistemas agrosilvipastoril
653 $aSustentabilidade ecológica
653 $aZootecnia de precisão
700 1 $aMORAES, S. A. de
700 1 $aTONUCCI, R. G.
700 1 $aAMARAL, A. J. do
700 1 $aZONTA, J. H.
700 1 $aSOUZA, S. F. de
700 1 $aSANTOS, R. D. dos
700 1 $aMUNIZ, E. N.
700 1 $aPIOVEZAN, U.
773 $tRevista Científica de Produção Animal$gv. 22, n. 2, p. 81-89, 2020.
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