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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
09/01/2019 |
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Data da última atualização: |
14/01/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HORNUNG, P. S.; BARBI, R. C. T.; TEIXEIRA, G. L.; ÁVILA, S.; SILVA, F. L. de A. da; LAZZAROTTO, M.; SILVEIRA, J. L. M.; BETA, T.; RIBANI, R. H. |
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Afiliação: |
Polyanna Silveira Hornung, UFPR; Rafaela Cristina Turola Barbi, UFPR; Gerson Lopes Teixeira, UFPR; Suelen Ávila, UFPR; Fernando Lucas de Abreu da Silva, UFPR; MARCELO LAZZAROTTO, CNPF; Joana Léa Meira Silveira, UFPR; Trust Beta, University of Manitoba; Rosemary Hoffmann Ribani, UFPR. |
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Título: |
Brazilian Amazon white yam (Dioscorea sp.) starch: impact on functional properties due to chemical and physical modifications processes. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 134, n. 3, p. 2075-2088, Dec. 2018. |
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DOI: |
10.1007/s10973-018-7353-1 |
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Idioma: |
Inglês |
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Conteúdo: |
The functional properties of starch granules define its application in food and non-food industries. Thus, in this study we investigated thermal, rheological, structural and colour properties of the native and modified starch of the Amazon Dioscorea sp. (white yam) tuber. The Dioscorea sp. native starch was modified by applying single, simultaneous and combined modification agents (sodium hypochlorite, ultraviolet (UV) radiation and microwave irradiation). The thermogravimetric curves showed three main mass losses and increased thermal stability for the triple (NaClO + UV + microwaves) modified sample. The UV-irradiated samples required less energy (enthalpy) to gelatinize as registered by the differential scanning calorimetry. Performing modification using microwaves resulted in starches of highly viscous pastes as recorded by the rapid visco analyser. All the starch gel samples presented thixotropic behaviour, in which pseudoplastic characteristics were adequately described by Ostwald?de Waele and Herschel?Bulkley models. Rheological evaluation also revealed that one-step modified starches could produce stronger gels than the native one. Lower degree of relative crystallinity and a wide range of granule sizes were demonstrated by X-ray diffraction patterns and scanning electron microscopy. The colour measurement revealed the brightening and browning action of NaClO and microwaves, respectively. |
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Palavras-Chave: |
DSC; Microwave irradiation; Radiação ultravioleta; SEM; Starch oxidation; TG/DTG; Tuber starch. |
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Thesagro: |
Amido; Inhame; Oxidação; Tubérculo. |
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Thesaurus Nal: |
Dioscorea; Ultraviolet radiation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02573naa a2200385 a 4500
001 2103379
005 2019-01-14
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1007/s10973-018-7353-1$2DOI
100 1 $aHORNUNG, P. S.
245 $aBrazilian Amazon white yam (Dioscorea sp.) starch$bimpact on functional properties due to chemical and physical modifications processes.$h[electronic resource]
260 $c2018
520 $aThe functional properties of starch granules define its application in food and non-food industries. Thus, in this study we investigated thermal, rheological, structural and colour properties of the native and modified starch of the Amazon Dioscorea sp. (white yam) tuber. The Dioscorea sp. native starch was modified by applying single, simultaneous and combined modification agents (sodium hypochlorite, ultraviolet (UV) radiation and microwave irradiation). The thermogravimetric curves showed three main mass losses and increased thermal stability for the triple (NaClO + UV + microwaves) modified sample. The UV-irradiated samples required less energy (enthalpy) to gelatinize as registered by the differential scanning calorimetry. Performing modification using microwaves resulted in starches of highly viscous pastes as recorded by the rapid visco analyser. All the starch gel samples presented thixotropic behaviour, in which pseudoplastic characteristics were adequately described by Ostwald?de Waele and Herschel?Bulkley models. Rheological evaluation also revealed that one-step modified starches could produce stronger gels than the native one. Lower degree of relative crystallinity and a wide range of granule sizes were demonstrated by X-ray diffraction patterns and scanning electron microscopy. The colour measurement revealed the brightening and browning action of NaClO and microwaves, respectively.
650 $aDioscorea
650 $aUltraviolet radiation
650 $aAmido
650 $aInhame
650 $aOxidação
650 $aTubérculo
653 $aDSC
653 $aMicrowave irradiation
653 $aRadiação ultravioleta
653 $aSEM
653 $aStarch oxidation
653 $aTG/DTG
653 $aTuber starch
700 1 $aBARBI, R. C. T.
700 1 $aTEIXEIRA, G. L.
700 1 $aÁVILA, S.
700 1 $aSILVA, F. L. de A. da
700 1 $aLAZZAROTTO, M.
700 1 $aSILVEIRA, J. L. M.
700 1 $aBETA, T.
700 1 $aRIBANI, R. H.
773 $tJournal of Thermal Analysis and Calorimetry$gv. 134, n. 3, p. 2075-2088, Dec. 2018.
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Registro original: |
Embrapa Florestas (CNPF) |
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| Registros recuperados : 6 | |
| 1. |  | ÁVILA, S.; HORNUNG, P. S.; TEIXEIRA, G. L.; BEUX, M. R.; LAZZAROTTO, M.; RIBANI, R. H. A chemometric approach for moisture control in stingless bee honey using near infrared spectroscopy. Journal of Near Infrared Spectroscopy, v. 26, n. 6, p. 379-388, Dec. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 3. | | ÁVILA, S.; LAZZAROTTO, M.; HORNUNG, P. S.; TEIXEIRA, G. L.; ITO, V. C.; BELLETTINI, M. B.; BEUX, M. R.; BETA, T.; RIBAN, R. H. Influence of stingless bee genus (Scaptotrigona and Melipona) on the mineral content, physicochemical and microbiological properties of honey. Journal of Food Science and Technology, v. 56, n. 10, p. 4742-4748, Oct. 2019. Sort communication.| Tipo: Nota Técnica/Nota Científica |
| Biblioteca(s): Embrapa Florestas. |
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| 4. | | FERREIRA, A. C. H.; RODRIGUES, N. M.; NEIVA, J. N. M.; LÔBO, R. N. B.; TEIXEIRA, G. L.; OLIVEIRA FILHO, G. S. de; NUNES, F. C. de S. Consumo voluntário e digestibilidade aparente da matéria seca das silagens de capim elefante com diferentes níveis de subprodutos da indústria do suco de abacaxi. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 40., 2003, Santa Maria, RS. Otimizando a produção animal: anais. Santa Maria: Sociedade Brasileira de Zootecnia, 2003. 5 f. 1 CD ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Caprinos e Ovinos. |
|  |
| 5. | | HORNUNG, P. S.; BARBI, R. C. T.; TEIXEIRA, G. L.; ÁVILA, S.; SILVA, F. L. de A. da; LAZZAROTTO, M.; SILVEIRA, J. L. M.; BETA, T.; RIBANI, R. H. Brazilian Amazon white yam (Dioscorea sp.) starch: impact on functional properties due to chemical and physical modifications processes. Journal of Thermal Analysis and Calorimetry, v. 134, n. 3, p. 2075-2088, Dec. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Florestas. |
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| 6. | | FERREIRA, J. J. C.; BORGES, A. L. C. C.; SILVA, R. R. e; RIBEIRO, C. G. M.; RIBEIRO, P. V.; RIBEIRO JUNIOR, G. de O.; GONÇALVES, L. C.; RODRIGUES, J. A. S.; BORGES, I.; PATRIZI, W. L.; CAMPOS, M. M.; RODRIGUEZ, N. M.; TEIXEIRA, G. L. Componentes da parede celular das silagens de seis genótipos de sorgo (Sorghum bicolor (L.) Moench). In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 43., 2006, João Pessoa. Anais... João Pessoa: SBZ: UFPB, 2006. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 6 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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