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| Registros recuperados : 26 | |
| 3. |  | CARVALHO, C. V.; DOMINGUES, R.; PINTO, C. O.; JENS, S. M.; PEREIRA, H. P.; MARTINS, M. F.; GASPAR, E. B. Antibiograma de bactérias do gênero Moraxella spp. isoladas de bovinos com ceratoconjuntivite infecciosa bovina. In: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUL, 12., 2022, Bagé, RS. Resumos... Bagé: Embrapa Pecuária Sul, 2022. p. 10. Ana Cristina Mazzocato, editora técnica.| Biblioteca(s): Embrapa Gado de Leite. |
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| 4. | | CARVALHO, C. V.; DOMINGUES, R.; PINTO, C. O.; JENS, S. M.; PEREIRA, H. P.; MARTINS, M. F.; GASPAR, E. B. Antibiograma de bactérias do gênero Moraxella spp. isoladas de bovinos com ceratoconjuntivite infecciosa bovina. In: SIMPÓSIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA PECUÁRIA SUL, 12., 2022, Bagé, RS. Resumos... Bagé: Embrapa Pecuária Sul, 2022. p. 10. Ana Cristina Mazzocato, editora técnica.| Biblioteca(s): Embrapa Pecuária Sul. |
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| 5. | | LEITE, J. A.; PEREIRA, H. P.; ALVES, B. R. C.; BORGES, C. A. V.; RAMOS, A. I. A. P.; MARTINS, M. F.; ARCURI, E. F. Lytic bacteriophages as a potential alternative to control Staphylococcus aureus. Pesquisa Agropecuária Brasileira, Brasília, v. 54, e00917, jan.-dez. 2019. Título em português: Bacteriófagos líticos como alternativa potencial para o controle de Staphylococcus aureus.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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| 6. | | PEREIRA, H. P.; NASCIMENTO, R. I. C.; OLIVEIRA, F. R.; REIS, D. R. L.; SILVA, M. V. G. B.; MACHADO, M. A.; MARTINS, M. F. Genotyping of Girolando bulls for the B-casein gene. In: CONGRESSO BRASILEIRO DE GENÉTICA, 62., 2016, Caxambu. Resumos... Ribeirão Preto: Sociedade Brasileira de Genética, 2016. 1| Biblioteca(s): Embrapa Gado de Leite. |
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| 7. | | MOTTA, I. G. B. da; SANTANA, L. A. R.; PEREIRA, H. P.; PAULA, V. R. de; MARTINS, M. F.; CARNEIRO, J. da C.; OTENIO, M. H. Population dynamics of methanogenic archea in co-digestion systems operating different industrial residues for biogas production. Sustainability, v. 14, 11536, 2022.| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | CARVALHO, B. de O.; PEREIRA, H. P.; SEIBERLICK, O. S. G.; REIS, D. R. de L.; CARVALHO, W. A.; SILVA, M. V. G. B.; MACHADO, M. A.; MARTINS, M. F. Análise de genes diferencialmente expressos em resposta à infecção por Streptococcus agalactiae. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 24., 2019, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2019. Editor Técnico: Leônidas Paixão Passos, Embrapa Gado de Leite.| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | REIS, D. R. de L.; PEREIRA, H. P.; EGITO, A. A. do; TORRES JUNIOR, R. A. de A.; KIM, E. S.; SONSTEGARD, T. S.; MARTINS, M. F.; PANETTO, J. C. do C.; SILVA, M. V. G. B.; MACHADO, M. A. Development of tetra-primer ARMS-PCR protocol to genotype the prolactin receptor SNP 39136666 and assessment of this SNP in Brazilian locally adapted cattle breeds. Arquivo Brasileiro e Medicina Veterinária e Zootecnia, v. 73, p. 534-538, 2021. Communication.| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | PEREIRA, H. P.; VERARDO, L. L.; WELLER, M. M. D. C. A.; SBARDELLA, A. P.; MUNARI, D. P.; DAIBERT, R. M. de P.; CARVALHO, W. A.; MACHADO, M. A.; MARTINS, M. F. Going further post-RNA-seq: in silico functional analyses revealing candidate genes and regulatory elements related to mastitis in dairy cattle. Journal of Dairy Research, v. 88, p. 286-292, 2021.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | NASCIMENTO, J. C.; SANTOS, K. S.; CANONICI, L. F.; OLIVEIRA, F. R.; PEREIRA, H. P.; FAZA, D. R. L. R.; MARTINS, M. F.; PANETTO, J. C. do C.; MACHADO, M. A.; SILVA, M. V. G. B. Genotipagem de SNP ligado ao fenótipo Slick-Hair em bovinos usando a técnica de tetra-primer ARMS-PCR. In: XXII Workshop de Iniciação Científica da Embrapa Gado de Leite. XXII. Anais. Juiz de Fora/MG. Embrapa Gado de Leite, 2018. 4 p| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | NASCIMENTO, J. C.; SEIBERLICK, O. S. G.; CARVALHO, B. O.; PEREIRA, H. P.; REIS, D. R. de L.; MARTINS, M. F.; PANETTO, J. C. do C.; MACHADO, M. A.; SILVA, M. V. G. B. Frequência alélica e genotípica do SNP ligado ao fenótipo slick hair no gene do receptor da prolactina (PRLR) em bovinos da raça Caracu. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 24., 2019, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2019. 4 p. Editor Técnico: Leônidas Paixão Passos, Embrapa Gado de Leite.| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | BARBOSA, S. N.; PEREIRA, H. P.; NASCIMENTO, R. I. da; SANTOS, K. S. dos; REIS, D. R. de L.; MACHADO, M. A.; SILVA, M. V. G. B.; PANETTO, J. C. do C.; MARTINS, M. F. Identificação de portadores de alelos recessivos para três doenças hereditárias: CVM, BLAD e DUMPS em touros da Raça Girolando¹ In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 20. 2017, 4 p. Anais... Juiz de Fora/MG. Embrapa Gado de Leite.| Biblioteca(s): Embrapa Gado de Leite. |
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| 14. | | ALVES, A. S.; CAMPOS, R. A.; MALUF, V. H. H. K.; PEREIRA, H. P.; VIEIRA, F. de O.; REIS, D. R. de L.; GUIMARÃES, A. S.; MACHADO, M. A.; MARTINS, M. F. Identificação de vacas da raça Holandesa portadoras de alelo recessivo das doenças genéticas CVM, BLAD e DUMPS e genotipagem para Beta-caseína. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 25., 2021, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2021. (Embrapa Gado de Leite. Documentos, 261).| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | SANTOS, A. S. de O. dos; PEREIRA, H. P.; FOGAÇA, G. N.; MEURER, V. M.; FURTADO, M. A. M.; BORGES, C. A. V.; WELLER, M. M. D. C. A.; MARTINS, M. F. Separation and quantification of milk proteins with the addition of cheese whey by lab-on-a-chip. Pesquisa Agropecuária Brasileira, v. 58, e03099, 2023. Título em português: Separação e quantificação de proteínas do leite com adição de soro de queijo por lab-on-a-chip.| Biblioteca(s): Embrapa Gado de Leite; Embrapa Unidades Centrais. |
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| 16. | | SANTOS, K. S. DOS; BARBOSA, S. N.; PEREIRA, H. P.; NASCIMENTO, R. I. DA C.; REIS, D. R. de L.; MARTINS, M. F.; PANETTO, J. C. do C.; SILVA, M. V. G. B.; MACHADO, M. A. Utilização de ferramentas genômicas na pré-seleção de touros para o Programa Nacional de Melhoramento do Gir Leiteiro. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 20. 2017, 4 p. Anais... Juiz de Fora/MG. Embrapa Gado de Leite.| Biblioteca(s): Embrapa Gado de Leite. |
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| 17. | | MAGALHÃES, R. L. O. de; NOGUEIRA, A. L.; JENS, S. M.; PEREIRA, H. P.; DOMINGUES, R.; REIS, D. R. de L.; MARTINS, M. F.; MACHADO, M. A.; AZEVEDO, A. L. S. Validação de um painel específico (Fingerprinting) para identificação de cultivares de Urochloa. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE PIBIC/CNPQ, 26., 2022, Juiz de Fora. Anais... Juiz de Fora: Embrapa Gado de Leite, 2022. p. 20-24.| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | CARVALHO, C. V. de; COUTINHO, C. de C.; HONÓRIO, N. T. de B. S.; NOGUEIRA, A. L.; FERREIRA, R. C.; LIMA, L. L.; JESUS, L. M. de; MAGALHÃES, R. L. O. de; SILVA, J. M. A. da; PEREIRA, H. P.; DOMINGUES, R.; REIS, D. R. de L.; MACHADO, M. A.; MARTINS, M. F.; GASPAR, E. B. Isolamento de espécies de Moraxella em um surto de Ceratoconjuntivite Infecciosa em Minas Gerais. In: CONGRESSO DE MICROBIOLOGIA, 3., 2023, Juiz de fora. Doenças infecciosas emergentes: resumos. Universidade Federal de Juiz de Fora, 2023.| Biblioteca(s): Embrapa Gado de Leite. |
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| 19. | | DAIBERT, R. M. de P.; BIAGI JUNIOR, C. A. O. de; VIEIRA, F. de O.; SILVA, M. V. G. B.; HOTTZ, E. D.; PINHEIRO, M. B. M.; REIS, D. R. de L.; PEREIRA, H. P.; MARTINS, M. F.; BRANDAO, H. de M.; MACHADO, M. A.; CARVALHO, W. A. Lipopolysaccharide triggers different transcriptional signatures in taurine and indicine cattle macrophages: Reactive oxygen species and potential outcomes to the development of immune response to infections. PLoS One, v. 15, n. 11, e0241861, 2020.| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | MALUF, V. H. H. K.; LIMA, T. R. de; CAMPOS, R. A.; SOARES, I. K. de A.; PEREIRA, H. P.; DOMINGUES, R.; REIS, D. R. de L.; MARTINS, M. F.; PANETTO, J. C. do C.; SILVA, M. V. G. B.; MACHADO, M. A. Desenvolvimento de teste de genotipagem em bovinos para o SNP A1/A2 do gene da beta caseína, usando a técnica de tetra-primer ARMS-PCR. In: PASSOS, L. P. (ed.). Coletânea de Iniciação Científica da Embrapa Gado de Leite-PIBIC CNPq 2020-2021. Juiz de Fora: Embrapa Gado de Leite, 2021. (Embrapa Gado de Leite. Documentos, 262).| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 26 | |
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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. |
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: |
11/12/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
COSTA, A. M. M.; GIUDICE, O. B. S.; ALVES, J.; PINTO, J. C. C. DA S.; LIMA, J. P.; BIZZO, H. R.; CABRAL, L. M. C.; TONON, R. V. |
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Afiliação: |
ANDRÉ MESQUITA MAGALHÃES COSTA, UFRJ; OLAVO BITTENCOURT SILVA GIUDICE, UNESA; JESSICA ALVES, UFRJ; JOSÉ CARLOS COSTA DA SILVA PINTO, UFRJ; JANINE PASSOS LIMA, CTAA; HUMBERTO RIBEIRO BIZZO, CTAA; LOURDES MARIA CORREA CABRAL, CTAA; RENATA VALERIANO TONON, CTAA. |
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Título: |
Ultrasound production of alginate-based essential oil nanoemulsions for food preservation. |
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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 eletrônicos... Campinas: Galoá, 2023. |
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Idioma: |
Inglês |
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Notas: |
Poster 157675. Eixo temático: Colóides para filmes comestíveis. CIPCA. |
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Conteúdo: |
ssential oils are natural preservatives rich in compounds with antimicrobial and antioxidant properties, which can be applied in the form of emulsions in active coatings aiming at improving foods? shelf life. Droplet size reduction to the nanoscale (< 200 nm) may improve emulsion stability, transparency, and antimicrobial activity. In the case of high-moisture foods, such as fish and meat, alginate-stabilized emulsions are a good alternative to be applied in active coatings, since they can turn into gels when reticulated by divalent cations. The objective of the study was to develop alginate-based nanoemulsions of three types of essential oils (thyme (Thymus vulgaris), lemongrass (Cymbopogon citratus), and oregano (Origanum vulgare)), with potential to be applied in active coatings and films, and to compare their physical properties with conventional emulsions. Essential oils? chemical composition (GC-MS), antioxidant capacity (TEAC), and antimicrobial activity against Salmonella Typhimurium and Pseudomonas aeruginosa were investigated. Three coarse emulsions of each oil (thyme: T-CE, lemongrass: L-CE, and oregano: O-CE) containing water, sodium alginate (1%), essential oil (1%), and Tween 80 (1%) were prepared using an Ultra-Turrax at 10,000 rpm for 3 min; these emulsions were then homogenized with an ultrasonic probe (1 min/150 W) in order to produce the nanoemulsions (thyme: T-NE, lemongrass: L-NE, and oregano: O-NE). Oil droplet size, polydispersity index, and zeta potential were evaluated in the nanoemulsions and their respective emulsions. Thymol (44%), Geranial (43.7%), and Carvacrol (70.9%) were the main components of thyme, lemongrass and oregano, respectively. Oregano showed a higher antioxidant capacity (278,068 µmol TE/100 g oil). All oils showed antimicrobial activity against Salmonella Typhimurium and Pseudomonas aeruginosa. Size analysis indicated that T-CE, T-NE and L-NE were in the nanoscale and the ultrasound treatment significantly reduced the mean oil droplet of lemongrass samples (L-CE: 585 ± 44 nm vs L-NE: 147 ± 15 nm). The distinct effect of ultrasound treatment on samples droplet size could be related to the oils? varied chemical composition. Each oil has a specific affinity with the applied emulsifier, which affect its ability to reduce interfacial tension, inhibiting droplet disruption. Ultrasound treatment reduced the polydispersity index in thyme (T-CE: 0.48 ± 0.03 vs T-NE: 0.39 ± 0.06) and lemongrass (L-CE: 0.49 ± 0.04 vs L-NE: 0.40 ± 0.04) nanoemulsions, suggesting that this high-energy homogenization method was able to reduce oil droplet size variations. O-CE (-58 ± 3 mV) and O-NE (-59 ± 3 mV) showed the highest zeta potential, while L-CE (-45 ± 3 mV) showed the lowest one, which can be also attributed to the oils distinct chemical composition that could influence oils droplets charges. Ultrasound treatment did not affect samples? zeta potential. Oils characterization indicated their potential use as active ingredients in the development of alginate-based active coatings with antioxidant and antimicrobial activity. Ultrasound treatment reduced L-NE oil droplet size and promoted a more homogeneous oil droplet size distribution in thyme and lemongrass samples. The next steps include the investigation of nanoemulsions? physical and chemical properties, antimicrobial activity, and application in fish fillets after alginate reticulation. Menosssential oils are natural preservatives rich in compounds with antimicrobial and antioxidant properties, which can be applied in the form of emulsions in active coatings aiming at improving foods? shelf life. Droplet size reduction to the nanoscale (< 200 nm) may improve emulsion stability, transparency, and antimicrobial activity. In the case of high-moisture foods, such as fish and meat, alginate-stabilized emulsions are a good alternative to be applied in active coatings, since they can turn into gels when reticulated by divalent cations. The objective of the study was to develop alginate-based nanoemulsions of three types of essential oils (thyme (Thymus vulgaris), lemongrass (Cymbopogon citratus), and oregano (Origanum vulgare)), with potential to be applied in active coatings and films, and to compare their physical properties with conventional emulsions. Essential oils? chemical composition (GC-MS), antioxidant capacity (TEAC), and antimicrobial activity against Salmonella Typhimurium and Pseudomonas aeruginosa were investigated. Three coarse emulsions of each oil (thyme: T-CE, lemongrass: L-CE, and oregano: O-CE) containing water, sodium alginate (1%), essential oil (1%), and Tween 80 (1%) were prepared using an Ultra-Turrax at 10,000 rpm for 3 min; these emulsions were then homogenized with an ultrasonic probe (1 min/150 W) in order to produce the nanoemulsions (thyme: T-NE, lemongrass: L-NE, and oregano: O-NE). Oil droplet size, polydispersity index, and zeta poten... Mostrar Tudo |
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Palavras-Chave: |
Active coatings. |
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Thesaurus NAL: |
Essential oils; Nanoemulsions. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 04294nam a2200241 a 4500
001 2153810
005 2023-12-11
008 2023 bl uuuu u00u1 u #d
100 1 $aCOSTA, A. M. M.
245 $aUltrasound production of alginate-based essential oil nanoemulsions for food preservation.$h[electronic resource]
260 $aIn: CONFERÊNCIA INTERNACIONAL DE PROTEÍNAS E COLOIDES ALIMENTARES, 9., 2023, Rio de Janeiro. Anais eletrônicos... Campinas: Galoá$c2023
500 $aPoster 157675. Eixo temático: Colóides para filmes comestíveis. CIPCA.
520 $assential oils are natural preservatives rich in compounds with antimicrobial and antioxidant properties, which can be applied in the form of emulsions in active coatings aiming at improving foods? shelf life. Droplet size reduction to the nanoscale (< 200 nm) may improve emulsion stability, transparency, and antimicrobial activity. In the case of high-moisture foods, such as fish and meat, alginate-stabilized emulsions are a good alternative to be applied in active coatings, since they can turn into gels when reticulated by divalent cations. The objective of the study was to develop alginate-based nanoemulsions of three types of essential oils (thyme (Thymus vulgaris), lemongrass (Cymbopogon citratus), and oregano (Origanum vulgare)), with potential to be applied in active coatings and films, and to compare their physical properties with conventional emulsions. Essential oils? chemical composition (GC-MS), antioxidant capacity (TEAC), and antimicrobial activity against Salmonella Typhimurium and Pseudomonas aeruginosa were investigated. Three coarse emulsions of each oil (thyme: T-CE, lemongrass: L-CE, and oregano: O-CE) containing water, sodium alginate (1%), essential oil (1%), and Tween 80 (1%) were prepared using an Ultra-Turrax at 10,000 rpm for 3 min; these emulsions were then homogenized with an ultrasonic probe (1 min/150 W) in order to produce the nanoemulsions (thyme: T-NE, lemongrass: L-NE, and oregano: O-NE). Oil droplet size, polydispersity index, and zeta potential were evaluated in the nanoemulsions and their respective emulsions. Thymol (44%), Geranial (43.7%), and Carvacrol (70.9%) were the main components of thyme, lemongrass and oregano, respectively. Oregano showed a higher antioxidant capacity (278,068 µmol TE/100 g oil). All oils showed antimicrobial activity against Salmonella Typhimurium and Pseudomonas aeruginosa. Size analysis indicated that T-CE, T-NE and L-NE were in the nanoscale and the ultrasound treatment significantly reduced the mean oil droplet of lemongrass samples (L-CE: 585 ± 44 nm vs L-NE: 147 ± 15 nm). The distinct effect of ultrasound treatment on samples droplet size could be related to the oils? varied chemical composition. Each oil has a specific affinity with the applied emulsifier, which affect its ability to reduce interfacial tension, inhibiting droplet disruption. Ultrasound treatment reduced the polydispersity index in thyme (T-CE: 0.48 ± 0.03 vs T-NE: 0.39 ± 0.06) and lemongrass (L-CE: 0.49 ± 0.04 vs L-NE: 0.40 ± 0.04) nanoemulsions, suggesting that this high-energy homogenization method was able to reduce oil droplet size variations. O-CE (-58 ± 3 mV) and O-NE (-59 ± 3 mV) showed the highest zeta potential, while L-CE (-45 ± 3 mV) showed the lowest one, which can be also attributed to the oils distinct chemical composition that could influence oils droplets charges. Ultrasound treatment did not affect samples? zeta potential. Oils characterization indicated their potential use as active ingredients in the development of alginate-based active coatings with antioxidant and antimicrobial activity. Ultrasound treatment reduced L-NE oil droplet size and promoted a more homogeneous oil droplet size distribution in thyme and lemongrass samples. The next steps include the investigation of nanoemulsions? physical and chemical properties, antimicrobial activity, and application in fish fillets after alginate reticulation.
650 $aEssential oils
650 $aNanoemulsions
653 $aActive coatings
700 1 $aGIUDICE, O. B. S.
700 1 $aALVES, J.
700 1 $aPINTO, J. C. C. DA S.
700 1 $aLIMA, J. P.
700 1 $aBIZZO, H. R.
700 1 $aCABRAL, L. M. C.
700 1 $aTONON, R. V.
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