Anthocyanins and catechins in the berries of new strawberry cultivars grown in the conditions of the Orel region

Russian Research Institute of Fruit Crop Breeding (VNIISPK) 302530, Zhilina, Orel district, Orel region, Russian Federation

^* Corresponding author: makarkina@vniispk.ru

Abstract

The results of the study of 20 new strawberry cultivars grown in the conditions of the Central part of Russia (Orel region), according to the content of anthocyanins, catechins and the total number of polyphenols in berries, are presented. Anthocyanins and catechins are representatives of the main group of phenolic compounds, flavonoids that have a therapeutic and preventive effect on the human body. The purpose of the research is to identify the best genotypes for breeding for an improved chemical composition of berries. The determination of phenolic compounds was carried out by the photometric method. The content of anthocyanins in strawberries varied depending on the cultivar to an average degree (V=16.3%) and amounted to 51.1±1.9 mg/100 g with a range of variation from 40.1 to 70.2 mg/100 g. A high content of anthocyanins (mg/100 g) was observed in Rusich (70.2), Solovushka (64.2), Darselect (62.5), Tsaritsa (59.5), Rubino civ (57.9), Sonata (55.4), Alpha (54.5), Honeoye (51.8). The average content of catechins in the berries of the studied group of cultivars also changed to an average degree (V=22.2%) from 71.4 to 174.6 mg/100 g with an average c value of 124.9±6.2 mg/100 g. The high content of catechins in berries was found in Rusich (136,2), Clery (132,0), Rubino civ (137,4), Sara (137,7), Vima Kimberly (139,5), Dezy (152,5), Sonata (164,9), Solovushka (168,2) and Alpha (174,6). There was no correlation between the accumulation of anthocyanins and catechins in strawberries (r=+0.149). According to the total number of polyphenols (more than 500 mg/100 g) in the berries, Alpha, Rusich, Solovushka, Dezy and Rubino civ are distinguished.