PHYSICOCHEMICAL AND SENSORY FEATURES OF ACID CURD CHEESE (TVAROG) PRODUCED FROM GOAT’S MILK AND MIXTURE OF COW’S AND GOAT’S MILK
Journal Title: Żywność. Nauka. Technologia. Jakość - Year 2010, Vol 17, Issue 2
Abstract
Physicochemical and sensory features were analyzed of the acid curd cheese (tvarog) produced from goat’s milk and a mixture of goat’s and cow’s milk (in two proportions) during a 3-week storage at a temperature of 5 ± 1 ºC. The samples for analysis were produced under the laboratory conditions and vacuum packed. Four (4) variants of tvarog cheese were produced: (i) tvarog made from cow’s milk; (ii) tvarog made from a mixture of goat’s and cow’s milk, in a 1:1 proportion; (iii) tvarog made from a mixture of goat’s and cow’s milk in a 2:1 proportion; and (iv) tvarog made from goat’s milk. The cheeses analyzed were sensory assessed and the following features were determined: content of water; content of fat; titratable acidity; pH; whey loss (leakage); and hardness. It was found that the tvarog cheeses differed from each other in their sensory features, content of water, content of fat, active acidity, and potential acidity. No significant differences were found in the amount of whey loss (leakage); its largest amount was reported in the tvarog made exclusively from goat’s milk. The samples analyzed had a normative chemical composition and along with the per cent content of the goat’s milk in the processed milk, the content of water increased simultaneously. The reported decrease in the titratable acidity was statistically significant, whereas the time of storing the cheeses did not impacted the pH level of the samples analyzed. The highest hardness had the tvarog cheese made from cow’s milk and the lowest: made from goat’s milk. The differences in the hardness of samples made from the mixture of the two milk kinds appeared to be statistically significant.
Authors and Affiliations
IZABELA DMYTRÓW, ANNA MITUNIEWICZ-MAŁEK, KRZYSZTOF DMYTRÓW
Keywords
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- EP ID EP89120
- DOI 10.15193/zntj/2010/69/046-061
- Views 91
- Downloads 0
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