2004
DOI: 10.1590/s0103-84782004000400039
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Physicochemical properties of three food proteins treated with transglutaminase

Abstract: Three sources of food proteins were treated with microbial transglutaminase (EC 2.3.2.13) in order to assess changes in the physicochemical properties of reactivity, solubility, emulsification, and free amino groups of the formed polymers. Samples of lactic casein (LC), isolated soy protein (ISP), and hydrolysed animal protein (HAP), were incubated with the enzyme for one or two hours. LC and ISP showed a reduced solubility of 15% and 24% respectively, with HAP showing no alteration on solubility. Amino nitrog… Show more

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Cited by 18 publications
(16 citation statements)
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“…After dialysis, the protein content of the samples was adjusted to 1 mg/ mL. Stability of emulsions was then determined according to the method of Soares et al (2004) with some modifications. Emulsions were prepared by adding 0.25 mL soybean oil to 1.5 mL of the protein solution followed by homogenization for 30 s at maximum rpm using a Heidolph Diax 900 homogenizer.…”
Section: Resultsmentioning
confidence: 99%
“…After dialysis, the protein content of the samples was adjusted to 1 mg/ mL. Stability of emulsions was then determined according to the method of Soares et al (2004) with some modifications. Emulsions were prepared by adding 0.25 mL soybean oil to 1.5 mL of the protein solution followed by homogenization for 30 s at maximum rpm using a Heidolph Diax 900 homogenizer.…”
Section: Resultsmentioning
confidence: 99%
“…TGase supplementation was reported to provide firmer and tighter gel net formation through intermolecular ε (γ-glutamyl)-lysyl cross bindings (Nio et al, 1986;Tseng et al, 2000;Soares et al, 2004;Yokoyama et al, 2004;Sun & Arntfield, 2011;Bourneow et al, 2012).…”
Section: Introductionmentioning
confidence: 99%
“…Para T2, foi empregado temperatura de 20 °C e hipoclorito de sódio, enquanto que para T8 foi empregado 50° C e hidróxido de sódio. Em estudo com isolado de caseína láctea, proteína isolada de soja, e proteína animal hidrolisada, Soares et al(2004), obtiveram valores de solubilidade de 80 %, 95 % e 95 %, respectivamente.…”
Section: Propriedades Funcionais Do Courinho Obtido Nos Testes De Desunclassified
“…A solubilidade das proteínas é determinada por um conjunto de características, tais como a massa molecular, a conformação estrutural e a flexibilidade, carga líquida e hidrofobicidade, além das suas interações com outros componentes alimentares (Soares et al, 2004). Interações hidrofílicas são mais estáveis a temperaturas mais baixas, enquanto as hidrofóbicas são instáveis (Fennema, 2000).…”
Section: Propriedades Funcionais Do Courinho Obtido Nos Testes De Desunclassified
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