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The study of the chemical composition and antioxidant activity of fresh berries and their products on the example of chokeberry
https://doi.org/10.31676/0235-2591-2015-2-42-46
Abstract
The article describes the fruits and their products as promising objects of study of antioxidant properties of various biological and chemical models that exhibit a high level of antioxidant activity. Provides recommendations use the fruit as dietary supplements for food supply. Outlined the main factors influencing the antioxidant activity. Set out the main characteristics of the object - chokeberry, production technology products: puree, juice concentrate, pomace. Explains the basic methods of chemical analysis, determination of antioxidant activity and the study of physical and chemical parameters of objects. Shows the results of the total polyphenol content (using Folin reagent Chekelau), flavonoids (colorimetric method), anthocyanins (by the pH differential), antioxidant activity (for example, colorimetry of free radicals), the mass fraction soluble solids, sugar and pectin, titratable acidity for fresh fruit and processed products. According to these figures identified products containing high levels of antioxidant activity: total content of poly-phenols, flavonoids, anthocyans, antioxidant activity and physico-chemical properties: mass fraction of soluble solids, sugar and pectin, titratable acidity.
About the Authors
M. S. Voronina
Samara State Technical University
Russian Federation
Russian Federation
N. V. Makarova
Samara State Technical University
Russian Federation
Russian Federation
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Review
For citations:
Voronina M.S., Makarova N.V. The study of the chemical composition and antioxidant activity of fresh berries and their products on the example of chokeberry. Horticulture and viticulture. 2015;(2):42-46. (In Russ.) https://doi.org/10.31676/0235-2591-2015-2-42-46
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