The purpose of the study was the generalization of the results of long term studying of chemical composi- tion and antioxidant value of strawberry fruit from genet- ic pool in the conditions of the Central Chernozyom Re- gion. Among the objects of investigations there were the varieties of I.V. Michurin FSC selection (Lastochka, Pamyati Zubova, Privlekatelnaya, Urozhaynaya CGL, Feyerwerk, Flora, Yarkaya) and introduced domestic varieties (Kokinskaya zarya, Tsaritsa, Kupchikha, Festivalnaya) and foreign varieties (Barlidaun, Vima Tarda,Vima Kimberly, Korona, Red Gauntlet). The anal- yses of fruit for biochemical composition were carried out according to conventional methods in the manuals: “Methods of biochemical research of plants” (1987); “Program and methods of variety investigation of fruit, berry and nut crops” (1999); “Manual on methods of quality control and safety of biologically active additives in food” (2004). The definition of total content of antioxi- dants was carried out on liquid chromatograph "Tsvet- Yauza 01-AA" in recalculation for gallic acid. Content variation limits of basic nutrient and biologically active components have been shown: soluble solids - 9.0-13.9 %, total sugars - 6.3-10.3 %, titrable acids - 0.69-1.28 %, juice pH - 3.1-3.8, ascorbic acid - 48.4-101.4 mg/100g, anthocyanins - 34.7-112.2 mg/100 g, total antioxidants contents - 29.7-62.5 mg/100 g. The highest sugar acid index (11.3 up to 13.8) which mainly determined the taste advantages of fruit was in Lastochka, Kokinskaya zarya, Kupchikha varieties.I.V. Michurin FSC’s varieties Privlekatelnaya and Pamyati Zubova were characterized by integratedly higher accumulation of vitamin C (88.2 and79.8 mg/100 g respectively), anthocyanins (87.6 and96.9 mg/100g respectively), total content of antioxidants (60.7 and 62.5 mg/100g respectively). The varieties with high biochemical compounds were singled out both by definite indices and the complex of signs, thus they could be considered as the sources in further selection process, which could provide fruit quality and improved chemical composition of fruit. Special attention is de-served by the varieties Privlekatelnaya, Urozhaynaya CGL, Fireworks, Pamyati Zubova from them.
Fragaria × ananassa Duch, varieties, biochemical structure, ascorbic acid, anthocyanins, an- tioxidant activity
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