Desenvolvimento e caracterização de hambúrgueres de carne bovina com adição de farinha de okara

• Ano de defesa: 2013
• Autor(a) principal: Falcão, Heloísa Gabriel
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Tecnológica Federal do Paraná; Londrina; Programa de Pós-Graduação em Tecnologia de Alimentos
• Palavras-chave em Português: Proteínas de soja texturizada; Hambúrgueres; Carne bovina; Textured soy proteins; Hamburgers; Beef
• Link de acesso: http://repositorio.utfpr.edu.br/jspui/handle/1/620

The study was conducted with the main objective to develop beef burgers with added okara flour and verify the interaction of this ingredient with others, such as textured soy protein (TSP) and fat. The okara flour showed the following composition on a dry basis: 55.50% protein, 21% fat, 3.97% ash and 19.01% carbohydrates. Work development planning was used for simplex centroid mixtures in which the concentrations of TSP, okara flour and fat, ranged between 0 and 8% from 7 formulations. The samples were subjected to burgers developed technological functional analysis (yield, shrinkage, moisture retention, fat retention, absorption water index and absorption oil index), chemical composition (moisture, fat, protein and ash) and also the test of acceptance and purchase intent by sensory analysis. For technological functional properties, the textured soy protein, okara flour and fat influenced significantly (p <0.05) shrinkage, yield and water absorption index. Lower shrinkage values and higher yield values were obtained with the use of soy protein. The absorption water index had the same influences for both protein, as the textured soy protein and okara flour. For moisture retention and fat, only textured soy protein had a significant effect on these variables improves. Regarding chemical composition, all dependent variables (moisture, fat, protein and ash) were influenced significantly (p <0.05) by TSP, okara and fat, with the exception of protein content that had significant influence only the TSP . The moisture and lipid content, were more influenced by the fat, but for the ash content the greatest influence in the equation obtained in this study was to okara. Referring to the sensory characteristics of the developed formulations, all attributes studied underwent significant influence of TSP components, okara and fat. But in this case, the okara was the component that had the greatest influence on all parameters, except for purchase intent, that had the greatest influence in the equation by the component fat.