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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Psychrotrophic lipolytic bacteria and content of free fatty acids in bulk samples of cow?s raw milk
 MIKULOVÁ, Magda
The objective of the study was to analyze the relationship of psychrotrophic lipolytic bacteria in bulk samples of cow?s raw milk and their metabolic activity based on the content of free fatty acids and identifying the factors that may influence their levels. The contents of free fatty acids (FFA) and counts of total bacteria, psychrotrophic lipolytic bacteria (PLiBC) and somatic cells were determined in 150 samples of cow?s bulk raw milk on 20 farms with three different milking technologies in South Bohemia during 2008?10. FFA were determined using an extraction-titration method. Within the compared technologies, the highest mean values of FFA (38,8 mmol?kg-1; P<0,001) and PLiBC (696 CFU?ml?1) were observed on farms with pipeline milking in stalls. The lowest mean FFA level (15,4 mmol?kg-1) was determined on farms with an automatic milking system. Medium values were determined on farms with parlour milking. From the aspect of the inhibition of an increase in psychrotrophic bacteria, and mainly in psychrotrophic lipolytic bacteria in conditions of cold storage of raw milk the temperature of 4°C seems optimum as it markedly inhibits the growth of mesophilic and psychrotrophic bacteria and at the same time the increase in the values of free fatty acids is slower at this temperature compared to the temperatures of 6,5 and 10°C.
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Iodine content in eggs
 MIKULOVÁ, Magda
The aim of diploma work was contents supervision iodine solution in egg yolk in the consumer eggs and evaluates importance of eggs as an iodine source in human nutrition. In total, iodine content was determined in the yolk of 189 eggs (large flocks) and 210 eggs (small flocks). There were 3,2 times lower of iodine content in the egg yolk from small flocks compare to eggs from large flocks. Eggs from large flocks cover 2 - 25% and from small flocks only 0,4 {--} 12% of the daily iodine requirement in adults. Iodine content in eggs depends on daily iodine intake and the effect of laying cycle. Egg iodine concentration was determined by spectrophotometric metod based on the Sandell-Kolthoff reaction (Bednář a kol. 1964).
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See also: similar author names
4 Mikulová, Magdalena
4 Mikulová, Magdaléna
6 Mikulová, Marie
1 Mikulová, Markéta
2 Mikulová, Martina
13 Mikulová, Michaela
2 Mikulová, Miroslava
4 Mikulová, Monika
3 Mikulová, Mária
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