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Registros recuperados : 37 | |
11. | | 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. Biblioteca(s): Embrapa Florestas. |
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13. | | AVILA, S. R. de; LOVATTO, P. B.; MAUCH, C. R.; SCHIEDECK, G.; KUHN, M. A influência da adubação orgânica no equilíbrio trofobiótico solo-couve-pulgão. In: ENCONTRO DE INICIAÇÃO CIENTÍFICA E PÓS-GRADUAÇÃO DA EMBRAPA CLIMA TEMPERADO, 6., 2016, Pelotas. Ciência: Empreendedorismo e inovação: anais. Brasília, DF: Embrapa, 2016. p. 110-112 Biblioteca(s): Embrapa Clima Temperado. |
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14. | | CHEBATAROFF, N.; SALDAIN, N.; DEAMBROSI, E.; AVILA, S.; ZORRILLA, G.; ACEVEDO, A.; BLANCO, F.; PEREZ, W. Resultados experimentales 1988-89: soja. [S.l.]: CIAAB. Estacion Experimental del Este, 1989. 52p. (CIAAB. Estacion Experimental del Este. Serie Resultados Experimentales, 25). Biblioteca(s): Embrapa Soja. |
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20. | | ÁVILA, S.; SILVA, T. M. F. S. S.; BEUX, M. R.; LAZZAROTTO, M.; RIBANI, R. H. Impacto da pasteurização e desumificação na qualidade de meis de Tetragonisca angustula. In: CONGRESSO BRASILEIRO DE APICULTURA, 22.; CONGRESSO BRASILEIRO DE MELIPONICULTURA, 7., 2018, Joinville. Polinização, tecnologia oportunidades e desafio para o criador de abelha no Brasil: anais. Joinville: CBA, 2018. p. 184. Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 37 | |
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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. |
Registro Completo
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
09/01/2019 |
Data da última atualização: |
14/01/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
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. |
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. |
Título: |
Brazilian Amazon white yam (Dioscorea sp.) starch: impact on functional properties due to chemical and physical modifications processes. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
Journal of Thermal Analysis and Calorimetry, v. 134, n. 3, p. 2075-2088, Dec. 2018. |
DOI: |
10.1007/s10973-018-7353-1 |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
DSC; Microwave irradiation; Radiação ultravioleta; SEM; Starch oxidation; TG/DTG; Tuber starch. |
Thesagro: |
Amido; Inhame; Oxidação; Tubérculo. |
Thesaurus NAL: |
Dioscorea; Ultraviolet radiation. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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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