Identifikacija komponenti ukusa i antioksidativne aktivnosti ploda šumske jagode (Fragaria vesca L.) i stalnorađajućih sorti / Identification of fruit taste and antioxidant compounds in wild strawberry (F. vesca L.) and everbearing varieties
2012
Milivojević, J. (Poljoprivredni fakultet, Beograd-Zemun (Srbija)) | Dragišić-Maksimović, J. (Institut za multidisciplinarna istraživanja, Beograd (Srbija)) | Nikolić, M. (Poljoprivredni fakultet, Beograd-Zemun (Srbija)) | Maksimović, V. (Institut za multidisciplinarna istraživanja, Beograd (Srbija))
This study characterizes the fruit quality attributes and illustrates the differences in the content of taste- and some health-related compounds present in wild strawberry (Fragaria vesca L.), ‘Regina’ variety selected from the wild everbearing form of F. vesca var. semperflorens, and commercial everbearing variety ‘Irma’ bred by hybridization. ‘Regina’ yielded the highest fructose and glucose content (14.44 and 10.85 mg g-1 FW, respectively), whereas the highest content of succrose was recorded in F. vesca (19.04 mg g-1 FW). Citric acid was determined to be a major organic acid in F. vesca and ‘Regina’ (11.04 and 15.09 mg g-1 FW, respectively). However, content of citric and malic acid exhibited almost identical values in everbearing variety ‘Irma’. Among the phenolics measured, free ellagic acid was most abundant in achenes of strawberry variety ‘Regina’ (151.36 μg g-1 FW), whereas the highest amounts of pelargonidin-3-glucoside and cyanidin- 3-glucoside were detected in fruits of F. vesca. Similar trend was observed with total phenolic content, which expressed the highest value in achenes of strawberry variety ‘Regina’ (128.19 mg eqv. GA g-1 FW), but by analyzing data obtained only for fruit flesh the highest value of total phenolics was obtained in F. vesca ( 10.30 mg eqv. GA g-1 FW). Accordingly, the highest level of antioxidant capacity was observed in achenes of strawberry variety ‘Regina’ (8.04 mg eqv. ask. g-1 FW), followed by fruit flesh of F. vesca (2.70 mg eqv. ask. g-1 FW).
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