The aim of this study was to determine the total levels of fatty acids (FA) and trans fatty acids (TFA) in chocolate desserts in Slovenia. Fatty acids were analyzed by gas chromatography (GC) and the caffeine presence by liquid chromatography using a mass detector (LC-MS). We analyzed 35 chocolate desserts in free sale in confectioneries and markets in Slovenia. The samples were also sensory evaluated. The highest TMK content of 3,12 % was determined for the commercial sample Sacher kocka (sample 5), followed by the confectionery sample Čokoladna torta (sample 19) with 2,66 % and the commercial sample Čokoladna kocka (sample 4) with 2,46 %. The lowest TMK content was determined for commercial sample Sacher torta with 0,22 % TFA (sample 20). Other samples do not exceed the statutory limit of 2 g TFA per 100 g fat. In chocolate dessert samples, 51 different fatty acids were determined, some of which were below the detection limit (˂0.001 % of total MK). In samples, 6 MK stands out: oleic acid, whose average value of total MK is 25,95 %, palmitic acid, whose average value of total MK is 23,43 %, stearic acid acid, whose average value of total MK is 13,94 %, linoleic acid, whose average value of total MK is 11,21 %, lauric acid, whose average value from total MK is 9,21 % and myristic acid, whose average value from total MK is 6,15 %. The percentage of fat in the samples varied considerably (from 4,31 % to 30,62 %), and the proportion of saturated fats was relatively high, averaging 56,58 % of all fats.
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