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Comparing sensory quality of full and reduced fat commercial cheeses

100%
Lamparski G., Tobota G.
Polish Journal of Food and Nutrition Sciences
|
2007
|
tom 57
|
nr 3[A]
The aim of the study was to compare the sensory quality of commercial semi-hard type cheese and its reduced fat version. In quantitative descriptive analysis (QDA) a trained panel rated the cheeses for colour, odour, taste and texture. In the affective tests the panelists evaluated the samples for overall quality. The results proved that both fat content and years of production had significant effects on the sensory quality of the cheeses. The reduced-fat cheeses from 2004 and 2006 years obtained the lowest scores – 3.8 and 3.7 units respectively, whereas the other products (full-fat 2004, 2005, 2006 and reduced-fat 2005) obtained 6.5; 5.9; 8.6 and 6.2 units respectively. The QDA demonstrated significant differences (p<0.05) between the cheeses for the following attributes: yellow colour, salty taste, bitter taste aftertaste, hardness, chewiness, rubbery, dryness, and grainy caused the type cheese. The principal component analysis (PCA) indicated that the first (PC1) and the second (PC2) component together explained 75.85% of the variation of sensory quality of the samples.
2

Sensory quality of commercial full fat and reduced fat cheeses

80%
Lamparski G., Tobota G., Troszynska A., Fornal J.
Polish Journal of Food and Nutrition Sciences
|
2006
|
tom 15/56
|
nr Spec.Issue 1
The aim of the present study was to compare the sensory quality of cheeses with different fat content. The samples studied were Polish commercial semi-hard type cheese and its reduced fat version. The sensory quality of cheeses was evaluated by quantitative descriptive analysis (QDA) and as hedonic ratings on day 10, 50 and 80 of their storage under traditional conditions (refrigerator 4°C). The chemical composition of the cheeses was analysed as well. The chemical analysis and sensory evaluation (QDA) proved that the level of fat in cheeses and their storage period had a significant effect (p<0.05) on some chemical parameters of cheese and some sensory attributes. Statistically significant attributes which differentiated the profile of sensory quality of both varieties (p<0.05) of cheeses were: creamy odour, sour odour, yellow colour, salty taste, sweet taste, bitter taste, hardness and dryness. The results obtained with the QDA analysis were confirmed by the PCA analysis. Differentiating the sensory profile of cheeses (QDA) did not influence (p<0.05) their overall quality.
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