Keyword: «ascorbic acid»

Stone fruit crops are successfully cultivated in many regions of Russia. Their fruits contain a great diversity of biologically active and mineral substances. The stone fruit varietal collection of the All Russia Research Institute of Fruit Crop Breeding has been estimated on the content of biologically active substances (ascorbic acid and phenolic compounds) in fruits: 80 sour cherry varieties, 28 sweet cherry varieties, 29 plum varieties and 24 apricot varieties. High cultivar variability of the content of ascorbic acid and P-active sub-stances in fruits has been determined in each crop. The best genotypes have been singled out according to each biochemical component and a complex of characters.

At the Department of Chemistry and Chemical Technology of the Institute of science and technology carried out research work on the extraction of biologically active substances (BAS) of the fruit bushes growing in dendrogarden NArFU them. MV Lomonosov Moscow State University (Arkhangelsk). In this study, carried out extraction hawthorn fruit 70% concentration of ethanol. Extraction was performed by infusion, GM = 1: 10 (raw materials: extractant), heated in different conditions: 1) in an incubator at 60 ° C for 1.5 hours; duration of 1st extraction stage 1 h, a second - 30 minutes; 2) in a microwave oven at 300 W power for 5 min (1st extraction step); 3) in an oven with simultaneous sonication (ultrasound) mode in the 1st embodiment. In extracts of the fruit and extract the content of ascorbic acid is determined, the free organic acids and sugars, calculated yield of extractives (EV).