INVESTIGATION OF CHEMICAL CHARACTERISTICS IN WASTE OF JUICE PRODUCTION OF BLUEBERRIES AND BLACK CURRANTS
UDC 664.8.022.6
Abstract
This article examines the chemical characteristics contained in the waste of juice production of black currants and blueberries. the influence of antioxidant substances on the human body is considered. The aim of the article is to study the chemical composition and antioxidant activity of freshly frozen blueberries and black currants, fresh juice of blueberries and black currants, raw and dried pomace of the studied berries, which underwent short-term heat treatment, water extracts and concentrated water extracts of these berries, as well as the subsequent comparison of the values of all data. We demonstrate methods for determining the total content of phenolic compounds, total flavonoids, total anthocyanins, FRAP method (method for determining antiradical activity), a method for evaluating antioxidant properties using a model system of linoleic acid, as well as a method for determining the restoring force. Studies were carried out on water-alcohol extracts obtained at atmospheric pressure and temperature of 37 °C. The results of the study show that dried blueberries, compared with other objects studied as blueberries and blackcurrants, have the maximum values of all chemical characteristics, which is the best option for human health.
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