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13. | | GOY, R. C.; CAMPOS, J. V. de; BERNARDES FILHO, R.; BRANDAO, H. de M. Análise da ação de filmes de quitosana e micro/nano partículas de própolis sobre colônias de bactérias gram-positivas. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 6., 2012, Fortaleza. Anais... São Carlos: Embrapa Instrumentação; Fortaleza: Embrapa Agroindústria Tropical, 2012. p. 108-110. Editores: Maria Alice Martins, MOrsyleide de Freitas Rosa, Men de Sá Moreira de Souza Filho, Nicodemos Moreira dos Santos Junior, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso. Biblioteca(s): Embrapa Instrumentação. |
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16. | | TRONCARELLI, M. Z.; BRANDAO, H. de M.; GERN, J. C.; GUIMARAES, A. S.; LANGONI, H. Nanotechnology and antimicrobials in Veterinary Medicine. In: MÉNDEZ-VILAS, A. Microbial pathogens and strategies for combating them: science, technology and education. Badajoz, Spain: Formatex Research Center, 2013. p. 543-556. (Microbiology Book Series, 4) Biblioteca(s): Embrapa Gado de Leite. |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
20/12/2011 |
Data da última atualização: |
05/02/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
SOUZA, N. L. G. D.; BRANDAO, H. de M.; OLIVEIRA, L. F. C. de. |
Afiliação: |
NELSON LUIS G. D. SOUZA, UFJF; HUMBERTO DE MELLO BRANDAO, CNPGL; LUIZ FERNANDO C. DE OLIVEIRA, UFJF. |
Título: |
Spectroscopic and thermogravimetric study of chitosan after incubation in bovine rumen. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Journal of Molecular Structure, v. 1005, n. 1/3, p. 186-191, 2011. |
DOI: |
https://doi.org/10.1016/j.molstruc.2011.08.049 |
Idioma: |
Inglês |
Conteúdo: |
Chitosan is a polysaccharide that is found in some fungi but can also be obtained through the deacetylation of chitin. It is a copolymer of 2-amino-2-deoxy-d glucopyranose and 2-acetamido-2-deoxy-d-glucopyranose. Due to its bioactivity, biodegradability, biocompatibility, reactivity of deacetylated amino groups, selective permeability, polyelectrolyte action, and ability to form gel films, the chelation ability and adsorption capacity of this polymer has been studied in several applications. This work investigates the physical and chemical behavior of chitosan that has been exposed to bovine rumen to assess chitosan’s potential as a matrix for drug delivery into the bovine rumen. It was observed a low stability of chitosan in the bovine rumen, indicating that it will be difficult to use in delivery. It was determined that this stability is low due to the breakage of the polymer chain, the loss of the amino and amide groups and glucosyl ring opening. |
Palavras-Chave: |
FT-IR; Raman; Thermogravimetric analysis; UV–visible spectroscopy. |
Thesaurus NAL: |
chitosan; degradation. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 01692naa a2200229 a 4500 001 1910442 005 2024-02-05 008 2011 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.molstruc.2011.08.049$2DOI 100 1 $aSOUZA, N. L. G. D. 245 $aSpectroscopic and thermogravimetric study of chitosan after incubation in bovine rumen.$h[electronic resource] 260 $c2011 520 $aChitosan is a polysaccharide that is found in some fungi but can also be obtained through the deacetylation of chitin. It is a copolymer of 2-amino-2-deoxy-d glucopyranose and 2-acetamido-2-deoxy-d-glucopyranose. Due to its bioactivity, biodegradability, biocompatibility, reactivity of deacetylated amino groups, selective permeability, polyelectrolyte action, and ability to form gel films, the chelation ability and adsorption capacity of this polymer has been studied in several applications. This work investigates the physical and chemical behavior of chitosan that has been exposed to bovine rumen to assess chitosan’s potential as a matrix for drug delivery into the bovine rumen. It was observed a low stability of chitosan in the bovine rumen, indicating that it will be difficult to use in delivery. It was determined that this stability is low due to the breakage of the polymer chain, the loss of the amino and amide groups and glucosyl ring opening. 650 $achitosan 650 $adegradation 653 $aFT-IR 653 $aRaman 653 $aThermogravimetric analysis 653 $aUV–visible spectroscopy 700 1 $aBRANDAO, H. de M. 700 1 $aOLIVEIRA, L. F. C. de 773 $tJournal of Molecular Structure$gv. 1005, n. 1/3, p. 186-191, 2011.
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