Current technological solutions for processing black chokeberry berries to obtain juice and anthocyanin dyes

The most widespread in Aronia aronia was obtained in Russia in territories with a cold and humid climate and on relatively fertile soils of Siberia and The Urals, especially in Altai and even in the Arctic. In Siberia, berry crops have a number of advantages over fruit crops. They are less demanding to adverse conditions, their berries are richer in vitamins, mineral salts and organic acids. The average yield of the bush is from 10 to 17 kg of berries. Anthocyanin is the most common natural pigment that is highly soluble in water and gives vegetable products a color from red to purple, and is beneficial to human health. Anthocyanins are flavonoid compounds that belong to the category of polyphenols. They are extremely sensitive to changes in temperature and pH. In nature, anthocyanins occur as glycosides and their aglycones (non-saccharide parts) are known as anthocyanidins. In mountain ash, 25% of all polyphenols are anthocyanins. This article discusses all currently known technologies for the complex processing of mountain ash and their effect on the yield of juice and natural anthocyanin dyes.