Elaboração e avaliação sensorial de pré-mistura de massa para pão sem glúten a partir de derivados energéticos de mandioca
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Data
2004-05-27
Autores
Escouto, Luiz Fernando Santos [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
Em pesquisa anterior, foi desenvolvida uma formulação para pão sem glúten, baseada em derivados de mandioca. O pão sem glúten visa os celíacos, para os quais a ingestão de alimentos contendo glúten danifica a superfície da mucosa do intestino delgado. Essa formulação exigia uma fase de escaldamento dos ingredientes, o que acarretava maior consumo de energia. O ponto mais importante, entretanto, é que o pão tem curta vida de prateleira e por isso é adequado à dispersão do mercado, uma característica dos consumidores celíacos. Para contornar essas limitações foi desenvolvida e avaliada uma pré-mistura de pão sem glúten baseada na formulação anterior, mas com ajustes dos ingredientes farinha de mandioca, amido pré-gelificado e lecitina. O uso de pré-mistura é uma tendência da panificação atual e permite a comercialização dispersa e por maior período. Para os testes de ajuste da formulação foi usada a análise estatística univariada com 3 ensaios e 3 tratamentos cada para dois ingredientes amido pré-gelificado e farinha de mandioca crua. Foram selecionados como fatores importantes na escolha da formulação: a cor da crosta, miolo e na escolha da pré-mistura, avaliação energética e econômica, índice de aceitabilidade, calorimetria, avaliação sensorial. Além desses foram usados indicadores de volume, como o volume específico, densidade, indicador de conversão, perda por evaporação, pontuação da qualidade. Essa análise permitiu a seleção de uma formulação de pré-mistura a qual foi caracterizada para cor, calorimetria, conteúdo energético, custo da matéria prima e preparo. Como forma de confirmar a aceitabilidade foram preparados pães com a formulação selecionada, que por sua vez foram avaliados por degustadores selecionados entre os prováveis consumidores do público celíaco, sócios da Associação dos Celíacos do Brasil - ACELBRA, de São Paulo.
In a previou research it was develop a formulation for bread without gluten, using energetic cassava derivatives. This bread aims the celiac persons, for whom the ingestion of food with gluten causes damages the mucosa surface of small bowl. In a specific phase of this formulation the ingredients had to be scalded, which spent more energy. The point important is that the bread has short shelf life and is for these adequated the market dispersion characteristic of the celiac consumers. In order to solve these limitations was developed and evaluated a premixture of bread without gluten based in the previous formulation, but adjusted for ingredients cassava flour, pregelatinized starch and lecithin. Nowadays the use of the premixture is a tendency of the modern bakery. In the adjust of these formulation it were used statistical analysis univariable with 3 essays and 3 treatment for each two ingredients pregelatinized starch and cassava flour. It was selected some factors that influence the formulation: selected crust color, crumb and into select of the premixture, energetic and economical evaluation, acceptability index, calorimetry, sensory evaluation. Besides was volume indicators as specific volume, density, conversion indicator, evaporation rate, quality punctuation, volume and losses after cooking. This analysis allowed the selection of a premixture formulation that was characterized in color, calorimetric, energetic content, costs and of preparation. In order to confirm the bread acceptability it was made breads using these selected formulation, which were tasted and evaluated by celiac consumers and members of the São Paulo section for Brazilian Association of Celiac ACELBRA of the São Paulo. It was also stablished the organoleptic characteristics of the bread made with a premixture: crust color, symmetry and shape, crust characteristics, color, porousness and texture of the crumb, flavor and taste.
In a previou research it was develop a formulation for bread without gluten, using energetic cassava derivatives. This bread aims the celiac persons, for whom the ingestion of food with gluten causes damages the mucosa surface of small bowl. In a specific phase of this formulation the ingredients had to be scalded, which spent more energy. The point important is that the bread has short shelf life and is for these adequated the market dispersion characteristic of the celiac consumers. In order to solve these limitations was developed and evaluated a premixture of bread without gluten based in the previous formulation, but adjusted for ingredients cassava flour, pregelatinized starch and lecithin. Nowadays the use of the premixture is a tendency of the modern bakery. In the adjust of these formulation it were used statistical analysis univariable with 3 essays and 3 treatment for each two ingredients pregelatinized starch and cassava flour. It was selected some factors that influence the formulation: selected crust color, crumb and into select of the premixture, energetic and economical evaluation, acceptability index, calorimetry, sensory evaluation. Besides was volume indicators as specific volume, density, conversion indicator, evaporation rate, quality punctuation, volume and losses after cooking. This analysis allowed the selection of a premixture formulation that was characterized in color, calorimetric, energetic content, costs and of preparation. In order to confirm the bread acceptability it was made breads using these selected formulation, which were tasted and evaluated by celiac consumers and members of the São Paulo section for Brazilian Association of Celiac ACELBRA of the São Paulo. It was also stablished the organoleptic characteristics of the bread made with a premixture: crust color, symmetry and shape, crust characteristics, color, porousness and texture of the crumb, flavor and taste.
Descrição
Palavras-chave
Pão - Inovações tecnológicas, Doença celiaca - Dieta, Mandioca - Amido, Celiacs, Pregelatinized starc, Premix, Fermented cassava starch, Energy
Como citar
ESCOUTO, Luiz Fernando Santos. Elaboração e avaliação sensorial de pré-mistura de massa para pão sem glúten a partir de derivados energéticos de mandioca. 2004. xv, 93 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, 2004.