Perić Lazar
Analyzing of coffee quality with different methods
Institute of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade-Zemun (1,3,4,5)
Institute of Plant Protection and Food Products, Faculty of Agriculture, University of Belgrade, Belgrade-Zemun (6)
City Institution for Public Health Protection (GZZZ), Belgrade (2)
The results obtained by the analysis of the samples of coffee mostly consumed on our market showed that the coffee quality corresponds to the values as given in the Law of Health Food. It was not found that any of the parameters which determine food quality exceeded permitted values. Content of heavy metals and aflatoxines is below permitted values. The least content of caffeine was determined in a coffee sample roasted in the private roaster’s shop, and only in it the presence of coffee surrogates/substitutes was not proved.
Quality of potatoes grown in various regions of Serbia as influenced by heavy metal and pesticide residues concentrations
Institute of Food Technology and Biochemistry, Faculty of Agriculture, University of Belgrade, Belgrade-Zemun (1,2)
Institute of Plant Protection and Food Products, Faculty of Agriculture, University of Belgrade, Belgrade-Zemun (3)
It is possible to decompose starch into monosaccharides by the method of acid starch hydrolysis. By applying appropriate chemical procedure, a main solution is obtained, from which aliquots are taken after filtration to determine of the present glucose according to Luff-Shoorlu method. The analysed potatoes of cv. Desiree, grown on various sites in Serbia, have starch content that corresponds to available literature data. The highest starch content is found in potatoes from Ivanjica and Novi Pazar, i.e.
