2005
DOI: 10.1016/j.lwt.2004.06.002
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Effect of the thermal treatment of the filmogenic solution on the mechanical properties, color and opacity of films based on muscle proteins of two varieties of Tilapia

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Cited by 55 publications
(31 citation statements)
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“…The discoloration of WPI-based films at elevated temperatures was reported to mainly associate with Maillard browning of whey proteins and traces of reducing sugars (Miller et al 1997;Trezza and Krochta 2000). Nonetheless, DE values of all stored films were below 6, the threshold value detectable by the human eye (Garcia and Sobral 2005). This could indicate that films aged up to 49 days were not visibly different from freshly-prepared samples.…”
Section: Changes In Properties Of Spiced Film During Storagementioning
confidence: 87%
See 1 more Smart Citation
“…The discoloration of WPI-based films at elevated temperatures was reported to mainly associate with Maillard browning of whey proteins and traces of reducing sugars (Miller et al 1997;Trezza and Krochta 2000). Nonetheless, DE values of all stored films were below 6, the threshold value detectable by the human eye (Garcia and Sobral 2005). This could indicate that films aged up to 49 days were not visibly different from freshly-prepared samples.…”
Section: Changes In Properties Of Spiced Film During Storagementioning
confidence: 87%
“…1). Moreover, DE of all spiced films was higher than 6, indicating that the color difference between each formulation of spiced film and the control film could be visibly differentiated (Garcia and Sobral 2005).…”
Section: Effects Of Spice Powders On Film Propertiesmentioning
confidence: 92%
“…De acordo com Perez-Gago e Krochta (2001), um aumento na concentração de proteínas fornece maior quantidade de grupos sulfidrílicos na superfície da proteína, promovendo maior número de pontes covalentes S-S na matriz do filme, formando, assim, filmes mais resistentes. García et al (2005), que estudaram filmes com proteínas musculares de tilápia-do-nilo, também reportaram que o aumento da concentração de proteínas aumentou a resistência à tração dos filmes. O aumento do teor de proteínas reduziu a elongação na ruptura dos filmes (Tabela 2).…”
Section: Propriedades Mecânicas E De Barreira Dos Filmesunclassified
“…Isso pode explicar o efeito da temperatura (tratamento térmico da SF) sobre a força na ruptura, cujo máximo ficou em torno de 50ºC. Esse comportamento em relação à temperatura de tratamento térmico tem sido observado por outros autores que trabalham com proteínas similares (IWATA et al, 2000;PEREZ-GAGO;KROCHTA, 2001;GARCIA;SOBRAL, 2005). Esses autores alegaram que o tratamento térmico, até um determinado ponto, pode favorecer a formação de pontes de sulfeto entre cadeias peptídicas adjacentes, aumentando, conseqüentemente, a resistência do material.…”
Section: Propriedades Mecânicas Força Na Rupturaunclassified