FRUITING PARAMETERS AND CONTENT OF FLAVONOIDS AND ASCORBIC ACID IN BLUEBERRY (VACCINI-UM) FRUITS
Abstract
The research results of fruiting parameters and content of flavonoids and ascorbic acid in the fruits of Vaccinium species and varieties in the Mari El Republic are presented. The objects of our research were V. uliginosum L., V. angustifolium Ait., 8 varieties of V. corymbosum L. and V. a. × V. c. Northcountry. Values of blueberry fruits diameter in research years varied from 6,4 to 13,1 mm, fruits length – from 6,5 to 10,3 mm, 100 fruit weight – from 24,6 to 113,9 g. The studied species and varieties were divided on 2 groups: large-fruited – V. c. Patriot, V. c. Nelson, V. c. Toro, V. c. Duke, V. c. Bluegold, V. c. Bluecrop; and small-fruited – V. uliginosum, V. c. × V. a. Northcountry, V. c. Earlyblue, V. c. Rancocas, V. angustifolium. The studied Vaccinium representatives are characterized by smaller size and weight of fruits compared with the literature data. The content of biologically active substances in Vaccinium fruits remained at a high level. The range of content (mg/100 g wet weight) of ruthin was from 1,79 to 4,53, anthocyanins – from 18.1 to 78.2, ascorbic acid – from 9,07 to 29,9. The largest amount of ruthin was found in fruits of V. uliginosum, anthocyanins – V. angustifolium, ascorbic acid – V. c. × V. a. Northcountry. V. c. Patriot contained the least amount of biochemical compounds.Downloads
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