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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
10/03/2022 |
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Data da última atualização: |
14/03/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RODRIGUES, A. A. M.; COSTA, R. R. da; SANTOS, L. F. dos; SILVA, S. de M.; BRITTO, D. de; LIMA, M. A. C. de. |
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Afiliação: |
ANTONIO AUGUSTO MARQUES RODRIGUES, UFPB; RAYSSA RIBEIRO DA COSTA, UFPB; LUANA FERREIRA DOS SANTOS, UFPB; SILVANDA DE MELO SILVA, UFPB; DOUGLAS DE BRITTO, CPATSA; MARIA AUXILIADORA COELHO DE LIMA, CPATSA. |
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Título: |
Properties and characterization of biodegradable films obtained from different starch sources. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Food Science and Technology, v, 41, p. 476-482, 2021. |
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Idioma: |
Inglês |
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Notas: |
Supplement 2. |
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Conteúdo: |
The increasing use of natural biodegradable polymers to preserve foods is a consequence of the concern of society with sustainability. Starch stands out amongst the natural polymers due to its great availability on a worldwide scale, high extraction yield and nutritional value, low cost, biodegradability and biocompatibility. Apart from the traditional sources, various others exist with extraction potential. The objective of this study was to identify films from different non-traditional starch sources with properties revealing their potential to be applied as coating for fruits and vegetables. The biodegradable films were prepared with three starch concentrations (2, 3 and 3.5%) for each of the following sources: cassava, yam, jackfruit seed and mango kernel. The starches from the sources studied are promising ingredients for the formulation of films, presenting good physical, optical (such as transparency) and mechanical characteristics, principally tensile strength whose maximum value was 36.63 MPa. Increases in starch concentration directly influenced the thickness, water vapor permeability, tensile strength and puncture force. The films with the greatest potentials for use according to their characteristics were 3% cassava, 3% yam, 3.5% jackfruit seed and 2% mango. |
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Palavras-Chave: |
Filmes biodegradáveis; Permeabilidade ao vapor de água; Polímeros naturais biodegradáveis; Propriedades mecânicas; Propriedades ópticas. |
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Thesagro: |
Biofilme; Manga; Pós-Colheita. |
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Thesaurus Nal: |
Biofilm; Films (materials); Mangoes; Postharvest technology. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/232328/1/Properties-and-characterization-of-biodegradable-films-obtained-from-different-starch-2021.pdf
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Marc: |
LEADER 02298naa a2200337 a 4500
001 2140718
005 2022-03-14
008 2021 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, A. A. M.
245 $aProperties and characterization of biodegradable films obtained from different starch sources.$h[electronic resource]
260 $c2021
500 $aSupplement 2.
520 $aThe increasing use of natural biodegradable polymers to preserve foods is a consequence of the concern of society with sustainability. Starch stands out amongst the natural polymers due to its great availability on a worldwide scale, high extraction yield and nutritional value, low cost, biodegradability and biocompatibility. Apart from the traditional sources, various others exist with extraction potential. The objective of this study was to identify films from different non-traditional starch sources with properties revealing their potential to be applied as coating for fruits and vegetables. The biodegradable films were prepared with three starch concentrations (2, 3 and 3.5%) for each of the following sources: cassava, yam, jackfruit seed and mango kernel. The starches from the sources studied are promising ingredients for the formulation of films, presenting good physical, optical (such as transparency) and mechanical characteristics, principally tensile strength whose maximum value was 36.63 MPa. Increases in starch concentration directly influenced the thickness, water vapor permeability, tensile strength and puncture force. The films with the greatest potentials for use according to their characteristics were 3% cassava, 3% yam, 3.5% jackfruit seed and 2% mango.
650 $aBiofilm
650 $aFilms (materials)
650 $aMangoes
650 $aPostharvest technology
650 $aBiofilme
650 $aManga
650 $aPós-Colheita
653 $aFilmes biodegradáveis
653 $aPermeabilidade ao vapor de água
653 $aPolímeros naturais biodegradáveis
653 $aPropriedades mecânicas
653 $aPropriedades ópticas
700 1 $aCOSTA, R. R. da
700 1 $aSANTOS, L. F. dos
700 1 $aSILVA, S. de M.
700 1 $aBRITTO, D. de
700 1 $aLIMA, M. A. C. de
773 $tFood Science and Technology, v, 41, p. 476-482, 2021.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte; Embrapa Pecuária Sul. |
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Data corrente: |
29/11/2023 |
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Data da última atualização: |
30/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 3 |
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Autoria: |
GASPAR, E. B.; SANTOS, L. R. dos; EGITO, A. A. do; SANTOS, M. G. dos; MANTOVANI, C.; RIEGER, J. DA S. G.; ABRANTES, G. A. DE S.; SUNIGA, P. A. P.; FAVACHO, J. DE M.; PINTO, I. B.; NASSAR, A. F. DE C.; SANTOS, F. L. DOS; ARAUJO, F. R. |
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Afiliação: |
EMANUELLE BALDO GASPAR, CPPSUL; LENITA RAMIRES DOS SANTOS, CNPGC; ANDREA ALVES DO EGITO, CNPGC; MARIA GORETTI DOS SANTOS, CNPGC; CYNTHIA MANTOVANI, CNPGC; JULIANA DA SILVA GOMES RIEGER, CNPGC; GUILHERME AUGUSTO DE SOUSA ABRANTES, CNPGC; PAULA ADAS PEREIRA SUNIGA, UNIVERSIDADE FEDERAL DE MATO GROSSO DO SUL; JÚLIA DE MENDONÇA FAVACHO, CNPGC; INGRID BATISTA PINTO, CNPGC; ALESSANDRA FIGUEIREDO DE CASTRO NASSAR, CENTER FOR RESEARCH AND DEVELOPMENT IN ANIMAL HEALTH; FERNANDO LEANDRO DOS SANTOS, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; FLABIO RIBEIRO DE ARAUJO, CNPGC. |
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Título: |
Assessment of the virulence of the Burkholderia mallei Strain BAC 86/19 in BALB/c Mice. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Microorganisms, v. 11, issue 10, e2597, 2023. |
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DOI: |
https://doi.org/10.3390/microorganisms11102597 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - Burkholderia mallei is an aerobic, Gram-negative, non-motile bacillus. As an obligate mammalian pathogen, it primarily affects solipeds. Although rarely transmitted to humans, the disease it causes, glanders, is classified as a zoonosis. The bacterium was officially eradicated in Brazil in 1969; however, it reemerged after three decades. This study aims to assess the virulence of a specific B. mallei strain, isolated in Brazil, in BALB/c mice through intranasal infection. The strain, B. mallei BAC 86/19, was obtained from the tracheal secretion of a young mare displaying positive serology but no clinical signs of glanders. Post-mortem examinations revealed macroscopic lesions consistent with the disease, however. In mice, the LD50 was determined to be approximately 1.59 × 105 colony-forming units (CFU)/animal. Mice exposed to either 0.1 × LD50 or 1 × LD50 displayed transient
weight loss, which resolved after three or five days, respectively. B. mallei persisted within the liver and lung for five days post-infection and in the spleen for seven days. These findings underscore the detectable virulence of the Brazilian B. mallei BAC 86/19 strain in mice, which are relatively resilient hosts. This research points to the importance of the continued investigation of the virulence mechanisms and potential countermeasures associated with B. mallei infections, including their Brazilian isolates. |
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Thesagro: |
Doença Animal; Zoonose. |
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Thesaurus NAL: |
Animal diseases; Animal models; Burkholderia mallei; Glanders; Pathogenicity; Virulence; Zoonoses. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158893/1/Assessment-virulence-Burkholderia-mallei-strain-2023.pdf
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Marc: |
LEADER 02528naa a2200385 a 4500
001 2158911
005 2023-11-30
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.3390/microorganisms11102597$2DOI
100 1 $aGASPAR, E. B.
245 $aAssessment of the virulence of the Burkholderia mallei Strain BAC 86/19 in BALB/c Mice.$h[electronic resource]
260 $c2023
520 $aABSTRACT - Burkholderia mallei is an aerobic, Gram-negative, non-motile bacillus. As an obligate mammalian pathogen, it primarily affects solipeds. Although rarely transmitted to humans, the disease it causes, glanders, is classified as a zoonosis. The bacterium was officially eradicated in Brazil in 1969; however, it reemerged after three decades. This study aims to assess the virulence of a specific B. mallei strain, isolated in Brazil, in BALB/c mice through intranasal infection. The strain, B. mallei BAC 86/19, was obtained from the tracheal secretion of a young mare displaying positive serology but no clinical signs of glanders. Post-mortem examinations revealed macroscopic lesions consistent with the disease, however. In mice, the LD50 was determined to be approximately 1.59 × 105 colony-forming units (CFU)/animal. Mice exposed to either 0.1 × LD50 or 1 × LD50 displayed transient weight loss, which resolved after three or five days, respectively. B. mallei persisted within the liver and lung for five days post-infection and in the spleen for seven days. These findings underscore the detectable virulence of the Brazilian B. mallei BAC 86/19 strain in mice, which are relatively resilient hosts. This research points to the importance of the continued investigation of the virulence mechanisms and potential countermeasures associated with B. mallei infections, including their Brazilian isolates.
650 $aAnimal diseases
650 $aAnimal models
650 $aBurkholderia mallei
650 $aGlanders
650 $aPathogenicity
650 $aVirulence
650 $aZoonoses
650 $aDoença Animal
650 $aZoonose
700 1 $aSANTOS, L. R. dos
700 1 $aEGITO, A. A. do
700 1 $aSANTOS, M. G. dos
700 1 $aMANTOVANI, C.
700 1 $aRIEGER, J. DA S. G.
700 1 $aABRANTES, G. A. DE S.
700 1 $aSUNIGA, P. A. P.
700 1 $aFAVACHO, J. DE M.
700 1 $aPINTO, I. B.
700 1 $aNASSAR, A. F. DE C.
700 1 $aSANTOS, F. L. DOS
700 1 $aARAUJO, F. R.
773 $tMicroorganisms$gv. 11, issue 10, e2597, 2023.
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Embrapa Pecuária Sul (CPPSUL) |
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