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Porovnání metod měření syřitelnosti mléka
Valíčková, Jana
This Master thesis called Comparison of methods for measuring milk coagulation deals with a major technological step in the production of cheese, which is the process of curdling of milk. Two methods for measuring this process were compared, particularly the visual and instrumental method utilizing nephelo-turbidimeter. Based on statistical data processing in three cases, a difference was observered between the average visual measurement and instrumental measurement of significant 99%. Furthermore, the impacts on curdling of milk were assessed what showed that the best default property for the process of curdling had a pasteurized milk sample with the addition of CaCl2. On the basis of calculations in this thesis it has been concluded that to curdle a 100 l of milk with rennet CHY-MAX a 0,2 liters of the rennet is required. The same amount of milk is curdled with 1 litre of rennet Lactochym. In assessing the economics of using rennet Lactochym and CHY-MAX it has been found that for cost optimization it is more appropriate to use rennet CHY-MAX with a strentgh of at least 190 IMCU/ml diluted in distilled water at a ratio of 1:5.
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Cheese curd parameters influence to selected economic factors of production of cheese with white fungus
Pavlíčková, Žaneta ; Zemanová, Jana (referee) ; Babák, Libor (advisor)
The theme of this diploma thesis is the monitoring of influences on economic aspect of the production of the blue cheese "Hermelín" in the company Pribina. The objective was to specify the dependencies of the deviations of the features of productive cow's milk and of cheese curd made from it and their economics impacts. For this purpose, the analyses of curd grain, whey and cheeses just formed were executed. The samples were taken and analyzed during the manufacturing of cheeses in the factory. Another goal was to try to design a quick operational method for measuring the firmness of curd grain, which is a factor theoretically dependent on renneting qualities of milk and indicating losses of valuable components from cheese curd to whey. The firmness of grain along with these losses may cause negative deviations from required standard of final products, especially at parametres needed for entry of cheeses on sale, such as total solids, weight or content of fat. Concerning productive pasteurize milk, the most attention was focused on the milk coagulation time and its influence on successive phases of manufacturing and on final product. Milk coagulation time is an essential technological quality of milk and it is participant on quantitative and qualitative production of cheese factory. It has been proved that milk coagulation time is notably affected by its titrating acidity, statistic analyse found this influence as very statistically significant (P
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Porovnání metod měření syřitelnosti mléka
Valíčková, Jana
This Master thesis called Comparison of methods for measuring milk coagulation deals with a major technological step in the production of cheese, which is the process of curdling of milk. Two methods for measuring this process were compared, particularly the visual and instrumental method utilizing nephelo-turbidimeter. Based on statistical data processing in three cases, a difference was observered between the average visual measurement and instrumental measurement of significant 99%. Furthermore, the impacts on curdling of milk were assessed what showed that the best default property for the process of curdling had a pasteurized milk sample with the addition of CaCl2. On the basis of calculations in this thesis it has been concluded that to curdle a 100 l of milk with rennet CHY-MAX a 0,2 liters of the rennet is required. The same amount of milk is curdled with 1 litre of rennet Lactochym. In assessing the economics of using rennet Lactochym and CHY-MAX it has been found that for cost optimization it is more appropriate to use rennet CHY-MAX with a strentgh of at least 190 IMCU/ml diluted in distilled water at a ratio of 1:5.
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Cheese curd parameters influence to selected economic factors of production of cheese with white fungus
Pavlíčková, Žaneta ; Zemanová, Jana (referee) ; Babák, Libor (advisor)
The theme of this diploma thesis is the monitoring of influences on economic aspect of the production of the blue cheese "Hermelín" in the company Pribina. The objective was to specify the dependencies of the deviations of the features of productive cow's milk and of cheese curd made from it and their economics impacts. For this purpose, the analyses of curd grain, whey and cheeses just formed were executed. The samples were taken and analyzed during the manufacturing of cheeses in the factory. Another goal was to try to design a quick operational method for measuring the firmness of curd grain, which is a factor theoretically dependent on renneting qualities of milk and indicating losses of valuable components from cheese curd to whey. The firmness of grain along with these losses may cause negative deviations from required standard of final products, especially at parametres needed for entry of cheeses on sale, such as total solids, weight or content of fat. Concerning productive pasteurize milk, the most attention was focused on the milk coagulation time and its influence on successive phases of manufacturing and on final product. Milk coagulation time is an essential technological quality of milk and it is participant on quantitative and qualitative production of cheese factory. It has been proved that milk coagulation time is notably affected by its titrating acidity, statistic analyse found this influence as very statistically significant (P
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