The evaluation of organic milk quality. Summary of doctoral thesis for acquiring the Doctor's degree of Engineering Sciences in sector of Food Sciences
2007
Zagorska, J.
Scientists from different countries have very contradictious opinions about chemical composition and quality of organic milk. By now, the evaluation of organic milk quality and its comparison with conventional milk has not been performed in Latvia; there is also a lack of objective and well-grounded evaluation of produced organic milk quality. From this point of view, it is important to determine organic milk quality for ensuring consumers with safe nutrients and to help specialists of organic farming to develop production of organic food. The aim of research was to evaluate qualitative composition of organic milk. The tasks as follows were set to achieve the aim of the research: (1) to investigate the chemical composition of organic milk, (2) to determine content of IgA, IgG, IgM, lactoferrin and lysozyme in organic milk, (3) to investigate somatic cell count and the microbiological quality of organic milk, (4) to determine the level of aflotoxin M1 and heavy metals and trace elements (Cd, Zn, Pb, Cu, Fe) in milk, (5) to compare and to investigate the chemical composition and chemical contamination of organic milk and conventional milk.
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