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| PAES, M. C. D.; GUIMARAES, P. E. de O.; CARVALHO, C. W. P. de; OLIVEIRA, A. C. de. |
| As propriedades térmicas e reológicas do amido são determinantes na qualidade tecnológica deste biopolímero, entretanto essas não são consideradas no desenvolvimento de cultivares de milho no Brasil, não permitindo a apropriação ao diversificado setor agroindustrial. Assim, o objetivo do presente estudo foi caracterizar híbridos de milho quanto ao perfil viscoamilográfico do amido isolado. Os amidos isolados de trinta e seis híbridos de milho, experimentais e comerciais, foram caracterizados em um analisador rápido de viscosidade (RVA), sendo avaliadas as variáveis temperatura de pasta, viscosidade máxima a frio, viscosidade máxima, viscosidade mínima no aquecimento, viscosidade de quebra, viscosidade máxima no resfriamento, retrogradação e viscosidade... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: RVA; Gel; Zea Mays; Propriedade Físico-Química; Viscosidade; Fenômeno Físico; Gelatinização; Pasta; Gelatinization; Viscosity. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1135370 |
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| Muramatsu,K; Maiorka,A; Dahlke,F; Lopes,AS; Pasche,M. |
| The present study evaluated the effect of feed particle size, thermal processing different levels of fat inclusion and of moisture addition on the amount of gelatinized starch in a corn-soybean broiler diet. The different processing factors were combined in a 2 x 4 x 4 x 2 factorial arrangement in a three randomized block design consisting of three production series: two particle sizes (coarse: 1041 microns and medium: 743 microns), four fat inclusion levels at the mixer (15, 25, 35, and 45 g/kg of feed), four moisture addition levels in the conditioner (0, 7, 14, and 21g/kg of feed), and two thermal processing treatments (conditioning-pelleting or conditioning-expanding-pelleting) which resulted in 64 different processed feeds. For the determination of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Conditioning; Expander; Gelatinization; Moisture; Starch; Fat. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400005 |
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| Velásquez-Herrera,Julián David; Lucas-Aguirre,Juan Carlos; Quintero-Castaño,Víctor Dumar. |
| Abstract The aim of this research was to evaluate the functional properties of the native potato (Solanum phureja Juz. & Bukasov) starch in the food and non-food industry for which a thermal analysis was conducted, including thermogravimetric (TGA) analysis, differential scanning calorimetry (DSC) analysis, X-ray diffraction (XRD) analysis, morphologic analysis via scanning electron microscopy (SEM), and rapid viscoamylograph analysis (RVA). The RVA analysis showed that gelatinization temperature was 63.95 °C, the maximum viscosity was 1087 cP and ease of cooking was 7 min. The thermogravimetric (TGA) analysis revealed three stages: in the first, the product had weight loss of 9.51%; in the second, a weight loss of 53.88%; and in the third, a weight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Functional properties; Gelatinization; Native potato; Starch gelatinization transition; Thermal characteristics. |
| Ano: 2017 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000300323 |
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| Oliveira,Cristina Soltovski de; Bisinella,Radla Zabian Bassetto; Bet,Camila Delinski; Beninca,Cleoci; Demiate,Ivo Mottin; Schnitzler,Egon. |
| Abstract Ginger and white yam starches were investigated and compared with maize starch. Proximal composition, thermogravimetry, differential scanning calorimetry, microscopy, colourimetry, X-ray powder diffractometry and pasting profile were analysed. The unconventional starches presented higher protein and ash contents than the maize starch, that had the highest thermal stability. Higher gelatinisation temperatures were reported for ginger starch, and the enthalpy of the unconventional starches were similar. The maize starch presented the lowest gelatinisation values. For the corn starch the granules were polygonal and smaller than the unconventional starches, and oval shapes and larger diameters were found for the ginger and yam starches. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Native starch; Gelatinization; Thermal analysis; Pasting profile. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100516 |
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