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Efeito de substitutos de gordura na qualidade de queijo Prato com reduzido teor de gordura

Authors: Diamantino, Íris Martins;

Efeito de substitutos de gordura na qualidade de queijo Prato com reduzido teor de gordura

Abstract

Prato cheese is characterized as fatty and with medium moisture, it is very appreciated by consumers, being the second most consumed in the country. However, the association of fat intake with the development of coronary heart disease and cancers has prompted the search for food with fewer calories, but, at the same time, it must be as pleasing to taste as the full fat counterparts. Some alternatives were developed to improve physical and sensory characteristics in cheeses with reduced fat, including the use of fat substitutes. In this research, two different types of substitutes were incorporated into Prato cheese, to evaluate the effect on the technological quality of this cheese. The cheeses were prepared according to three treatments: a control, made with full fat milk and two made from standardized milk, a Prato light cheese and another Prato light cheese with added fat replacers: whey protein concentrate (WPC) and hydrolyzed collagen, respectively at a concentration of 1.0 and 0.5%, and repeated twice. During the ripening, the cheeses were submitted to analyses of the evaluation of proteolysis, melting and texture. The results obtained for the fat content allow the cheeses to be classified as light products, because they presented more than 25% of reduction, compared with the average fat content of a full fat Prato cheese. The addition of substitutes promoted an increase in moisture content and, consequently, in the yield of cheese; there was no influence on the acidity and proteolysis development. On the other hand, there was no relationship between the addition of fat substitutes and increasing the melting capacity and improving the texture of the Prato light cheese. Thus, further studies are needed to better understand the effect of whey protein concentrate and hydrolyzed collagen in the quality of these products, in order to assess their potential for production... (Complete abstract click electronic access below)

O queijo Prato é caracterizado como gordo e de média umidade, sendo o segundo mais consumido no país. Contudo, a associação da ingestão de gorduras com o desenvolvimento de doenças coronarianas e carcinogênicas tem incentivado a procura por alimentos menos calóricos e que, ao mesmo tempo, sejam tão agradáveis ao paladar quanto às versões integrais. Algumas melhorias tecnológicas foram desenvolvidas para promover bons aspectos físicos e sensoriais para queijos com baixo teor de gordura, incluindo o uso de substitutos de gordura. Nesta pesquisa, foram incorporados ao queijo Prato dois diferentes substitutos de gordura, aplicados simultaneamente, a fim de avaliar o efeito sobre a qualidade tecnológica desse queijo. Foram feitos dois processamentos dos queijos conforme 3 tratamentos: um controle, fabricado com leite integral e dois fabricados com leite padronizado a 1,5% de gordura: um queijo Prato light e outro queijo Prato light modificado, adicionado dos substitutos de gordura concentrado protéico de soro (CPS) e colágeno hidrolisado, nas concentrações de 1,0 e 0,5%, respectivamente. Durante o processo de maturação foram realizadas análises físico-químicas para a caracterização dos produtos, avaliação da proteólise, do derretimento e da textura. Os resultados obtidos para o conteúdo de gordura permitiram que os queijos fossem classificados como produtos light, por apresentarem redução maior que 25%, em relação ao conteúdo médio de gordura do queijo Prato integral. A adição dos substitutos promoveu aumento do teor de umidade e, conseqüentemente, do rendimento dos queijos. O comportamento da glicólise e da proteólise durante a maturação do queijo Prato light modificado foi próximo ao observado para o queijo Prato integral. Entretanto, não houve uma relação entre a adição dos substitutos de gordura e aumento da capacidade de derretimento...

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Pós-graduação em Engenharia e Ciência de Alimentos - IBILCE

Country
Brazil
Keywords

Queijo prato - Teor de gordura, Hydrolyzed collagen, Prato light cheese, Whey protein concentrate, Quejo prato - Qualidade, Proteolysis, Tecnologia de alimentos, Queijo prato - Indústria, Low fat food

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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Green