Características nutricionais, tecnológicas e sensoriais de queijo minas frescal elaborado com leite de cabra, leite de vaca e sua mistura

• Ano de defesa: 2013
• Autor(a) principal: Sant\'ana, Amanda Marília da Silva
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal da Paraí­ba; Brasil; Química e Bioquíma de Alimentos; Programa de Pós Graduação em Ciência e Tecnologia de Alimentos; UFPB
• Palavras-chave em Português: Caprinocultura; Produtos lácteos; Controle de qualidade; Queijos; Goat raising; Dairy products; Quality; Cheeses; CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS
• Link de acesso: https://repositorio.ufpb.br/jspui/handle/tede/4055

Minas frescal cheese is a traditional dairy product in Brazil, widely appreciated by national consumers. The development of novel technologies that can contribute to its enhancement represent a market innovation alternative for dairy products. This research aimed to characterize minas frescal cheeses elaborated with goat milk (CGM), cow milk (CCM) and the mixture of both (CCGM), comparing them with respect to nutritional, technological and sensory parameters during 21 days of refrigerated storage. The microbiological quality, physicochemical properties, proteolysis index, color parameters, texture profile, fatty acids profile and sensory aspects were evaluated in all cheese samples. The yield of the manufacturing process and chemical composition of the cheeses were not influenced by the type of milk used (P > 0.05), excepted the lactose content (P < 0.05). Decreases in pH values and moisture content accompanied by an increase of syneresis and acidity values were observed in all chesses during the refrigerated storage for 21 days. Higher mean values for the extent of proteolysis index were finding on the first week of storage, especially to the CCGM and CGM, while the depth of proteolysis index increased on the last week of storage, but with no difference among the cheeses analyzed. Texture analysis demonstrated a decrease in hardness values for all cheeses during the refrigerated storage. Color assay revealed the high lightness (L*) and the prevalence of the yellow component (b*) for the cheeses. The highest values (P < 0.05) of caprylic acid (C8:0), capric acid (C10:0), oleic acid (C18:1n9cis) and linolenic acid (C18:2n6cis) were observed in CGM and CCGM. Concerning Quantitative Descriptive Analysis (QDA) all chesses were considered soft, homogeneous and smooth appearance, the main differences were related to color, taste and aroma aspects. In addition, purchase intent test showed that the evaluators certainly would buy the CCM and CCGM or possibly would buy the CGM, suggesting a possible acceptance of the cheeses by the evaluators. The results of the present research indicated that the Minas frescal cheese elaborated with the mixture of goat and cow milk can be a viable alternative to the dairy products market, being considered a novel product with satisfactory sensory and nutritional quality for consumers.