This study was carried out to evaluate the behavior of high moisture Mozzarella cheese during 60 days of storage at 7 ºC in BOD incubator for microbiological quality, physicochemical composition, functional properties, and texture profile. The cheeses were purchased in a dairy industry from the city of Rio Verde, GO. The study was performed for 60 days at 20 days intervals between analysis. In order to evaluate if the changes occurred during storage time were significant, the analysis of variance was performed, and the means of the different storage days were compared by the Tukey test at 95% confidence. The results indicated hygienic-sanitary quality in the production of cheeses. The physicochemical composition was influenced by time only in the pH values and protein content; however, they were in accordancewith studies already performed. The functional properties of the cheeses were influenced by the storage time, only the free oil content remained stable. The color analysis of the cheeses showed values tending to yellow coloration throughout the storage period. As the primary and secondary proteolysis increased, there was also an increase in the melting capacity and changes in the texture parameters. Mozzarella cheese was suitable for consumption with a storage period of 60 days at 7 ºC, and the changes that have occurred are acceptable and required because this cheese is commonly used in pizzas.
Purpose The purpose of this study is to characterize and compare the results of the inspection mark of handmade and industrially processed Minas frescal cheese. It is one of the most commonly made and consumed cheeses in Brazil, and its production processes range from handmade cheeses produced in small household production sites to cheeses manufactured in large dairy factories subject to federal inspection. Design/methodology/approach The samples were stored for 10 days at 4°C in a biochemical oxygen demand chamber. Cheeses were analyzed using physicochemical analyzes, yield and syneresis indices and microbiological analyses. Findings The cheese A met the criterion of regulatory classification for very high humidity (65.32 g/100 g), while cheese B did not meet the criterion (54.38 g/100 g). Cheeses A (19.01 g/100 g) and B (24 g/100 g) showed average fat contents that did not comply with current legislation. The most probable number per g of thermotolerant coliforms was outside the acceptable range (>24 × 102 MPN/g), and Salmonella spp. were present in the tested samples. The highest yield was observed for handmade cheese (an average of 5.35 L of milk to produce 1 kg of cheese), which had the highest syneresis during the storage period (p = 0.004), reaching 14.26% on the 10th day of storage. Originality/value Municipal and state inspection certificates do not ensure the microbiological quality of Minas frescal cheese, indicating flaws in the good manufacturing practices and/or in the milk pasteurisation stage.
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