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Abstract
Abstract Serra da Estrela cheese is a traditional product from artisanal manufacture using raw ewe’s milk coagulated with dried, wild thistle flower. The present study aimed to investigate the variation of textural properties in Serra da Estrela cheeses manufactured in different dairies through time, namely from April to June, following the end of the cheese making season. Three types of tests were conducted: compression, puncture and spreadability. These were carried out on samples coming from six different dairies situated in the PDO (Protected Designation of Origin) region of this type of cheese. The results obtained showed some non-negligible differences for some textural properties between the top and bottom sides of the cheeses evaluated, as well as between cheeses from different dairies. Nevertheless, the properties of springiness, resilience, cohesiveness and adhesiveness (all from the compression test), were not significantly different in the samples analysed. In what concerns the variations along the milking season, it was possible to conclude that three of the considered dairies produced cheeses with a more constant textural profile in the period comprised between April and June. Furthermore, statistical analysis revealed that the correlations between the textural properties were strong for some interactions between properties form the same test and/or from similar nature.
Highlights
Cheese is a dairy product obtained from milk fermentation, and is one of the ancient foods still important in the Mediterranean diet
Some cheeses have a high content of saturated fatty acids, and in that case the consumption, must be moderated owing to their contribution for increasing low-density lipoprotein (LDL) cholesterol, which has been associated with cardiovascular diseases (Guiné and Florença 2019; Mihaylova et al 2012)
Adhesiveness comprises the force required to remove the material that adheres to a surface, for example the lips, palate or teeth
Summary
Cheese is a dairy product obtained from milk fermentation, and is one of the ancient foods still important in the Mediterranean diet. Cheese is a nutritive food that contains a high concentration of essential nutrients, such as proteins, bioactive peptides, fat, fatty acids (FA), vitamins and minerals (Ferrão and Guiné 2019). Some cheeses have a high content of saturated fatty acids, and in that case the consumption, must be moderated owing to their contribution for increasing low-density lipoprotein (LDL) cholesterol, which has been associated with cardiovascular diseases (Guiné and Florença 2019; Mihaylova et al 2012)
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