MORPHOMETRIC PARAMETERS AND ANTIOXIDANT POTENTIAL OF FRUITS OF MEDLAR TREE MESPILUS GERMANICA L.
DOI:
https://doi.org/10.53904/1682-2374/2019-21/46Abstract
The aim of this study was to determine morphometric parameters and biological activity of fruits of perspective genotypes of medlar (Mespilus germanica L.) from a collection of M.M. Gryshko National Botanical Garden of NAS of Ukraine. Genotypes differed by weight, shape, and size of fruits. The average weight of fruit was from 27.60 to 39.12 g, height from 34.20 to 42.29 mm, diameter from 36.31 to 44.75 mm. Index of fruit shape was determined in range from 0.65 to 1.28. The most variable features are the diameter of calyx basin (27.96 %) and weight of fruit (21.69 %), which are important parameters for selection that indicates about perspectivity of selection. Antioxidant activity by DPPH-method (0.89–2.09 mg TE/g) and phosphomolybdenum method (54.16–99.86 mg TE/g) demonstrates strong positive correlation with total content of polyphenols (4.17–9.39 mg GAE/g) in the fruit extracts. Obtained results demonstrate that fruits of medlar tree, cultivated in Ukraine, are a valuable source of polyphenol compounds with high antioxidant activity.
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