THE STUDY OF THE CHEMICAL COMPOSITION OF BERRIES OF BLUEBERRY AND COMMON DEVELOPMENT OF FORMULATIONS OF DRINKS ON ITS BASIS
The study presents the results of investigations of chemical composition of berries of Vaccinium vulgaris, which grow in the taiga zone of the territo-ry of Boguchansky district of Krasnoyarsk region. It was found out that blueberries contained a number of valuable biologically active compounds having antioxidant activity. The content of vitamin C was 38.40 mg %, flavonoids - 2.18 % a.s.m. tannins - 4.56 % a.s.m. anthocyanins - 1.22 % a.s.m., pro-tein and 1.13 % a.s.m. tocopherol - 1.14 mg %. Us-ing high-performance liquid chromatography indi-vidual composition of fatty acids contained in the berries of blueberry was stated. In the composition of fatty acids indispensable essential acids linoleic (omega-6), docogexanic, alpha-linolenic (omega-3) were found. Individual composition of minerals of blueberry was studied. A high content of macronu-trients, such as potassium (64.20 mg/100g), calci-um (18.33 mg/100g), magnesium (9.62 mg/100g), minerals (iron 180.3 mg/kg) was found. The pro-spects of using berries of common blueberry in beverages were estimated. The influence on the yield of extractives of the concentration of extractant (ethyl alcohol) and the duration of extrac-tion was estimated. The highest yield of extractive substances from berries of common blueberry (29.44 %) was observed when the concentration of ethyl alcohol was 55 %, and the duration of infusion was 5 days. The recipes for strong alcoholic drink vodka "Blueberry" with aromatic alcohol, of com-mon blueberry berries was developed. To obtain aromatic alcohol the crushed raw materials (blue-berries vulgaris) were placed in 55 % ethanol in the ratio of 5 g per 100 ml, at room temperature for 5 days with periodic stirring. The obtained extracts were distilled at the temperature equal to 78-80 0C. The yield of aromatic alcohol from 1 kg of berries of common blueberries amounted to 18.50 l, hardness was 78 %. Organoleptic and physico-chemical pa-rameters of drink vodka «Blueberry» were defined. Chromatography tests for the presence of toxic im-purities in the obtained strong alcoholic beverages were carried out. Obtained vodka «Blueberry» on the physico-chemical parameters corresponded to the State standard R 51355-99 «Vodka and vodka special. General technical conditions».