2018, № 73

UDC: 634.21:631.563.8
GSNTI: 68.35.71

Contents of chemical substances in fruits and recycling products from apricot

The study results of the chemical properties for fresh fruits of five apricot varieties grown in the conditions of the Southern coast of the Crimea and the products of processing obtained from them are presented. Two varieties (Iskorka Tavrida, Aresh Sanaghyan) were selected for drying according to their chemical composition. Their fruits are characterized by high content of dry matter (13.8-15.1%). For the production of jam variety Aurel was selected. Its fruits are characterized by a complex of positive signs (the fruit size, the taste valuation, skin smart). Apricot variety Kostinsky has the highest content of ascorbic acid. Its fruits are characterized by light coloration of the skin and pulp, as well as high taste qualities (a tasting rating is 4.4 points). They were used to make compote. Variety Shalah is high in content of dry matter (16.1%), sugars (11.36%), ascorbic acid (7.39 mg/100 g), low titrated acids (0.3%), leucoanthocyanins (32 mg/100 g), flavonoids (3.8 mg/100 g) and phenolic substances (68 mg/100 g). Its fruits were used to make puree. After six months of the products storage, the analysis was made for the safety of chemicals in the apricot processing products. An increase in the dry matter content from 1.5 to 6 times was marked, depending on the type of obtained food product. There was a change in the concentration of titrated acidity, ascorbic acid, leucoanthocyanins, flavonoids, the amount of phenolic substances in 2-5 times, compared with the content in fresh fruits. The least losses in the chemical composition of the obtained products from the apricot fruits were in dried apricots.
Keywords: Apricot, chemical composition, fresh fruits, processed products, storage
DOI: 10.21515/1999-1703-73-32-35

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Authors:

Gorina Valentina Melent'evna, DSc in Agriculture, Leading Researcher; Department of Fruit Crops, Federal State Institution of Science "Order of the Labour Red Banner Nikita Botanical Gardens - National Scientific Center Russian Academy of Science".
Korzin Vadim Valer'evich, Phd in Agriculture, Sen. Researche; Department of Fruit Crops, Federal State Institution of Science "Order of the Labour Red Banner Nikita Botanical Gardens - National Scientific Center Russian Academy of Science".
Mesyats Natal'ya Vasil'evna, Junior Researcher; Department of Fruit Crops, Federal State Institution of Science "Order of the Labour Red Banner Nikita Botanical Gardens - National Scientific Center Russian Academy of Science".
Marchuk Nadezhda Yurevna, Researcher at the Laboratory of biochemistry, physiology and reproductive biology, Federal State Institution of Science "Order of the Labour Red Banner Nikita Botanical Gardens - National Scientific Center Russian Academy of Science".