Abstract
This article focuses on analysing the properties of six varieties of haskap berry (honeyberry) as a valuable raw material for producing health-promoting juices. Significant differences in the content of bioactive compounds were observed between juices derived from fruits of the same species. This study demonstrated that controlled atmosphere (CA) conditions (20% CO2 and 5% O2) and modified atmosphere packaging (MAP) in Xtend bags affected juice quality by minimising nutritional losses. The analysis of polyphenol content in the juices revealed significant differences between varieties and years (2021 and 2022), primarily due to varying weather conditions. In 2022, the polyphenol content of the varieties ‘Usłada’, ‘Candy Blue’, ‘Boreal Beauty’, and ‘Boreal Beast’ was from 69% to twice as high compared to values recorded in 2021. CA and MAP storage conditions were found to be more effective than normal atmosphere (NA) in preserving bioactive components, and thus the antioxidant activity of the fruits, as measured by the DPPH method. The variety ‘Sinij Utes’ had the highest total polyphenol contents and their lowest loss during storage. Conversely, the variety ‘Boreal Beauty’ contained the lowest polyphenol levels both after harvest and storage. This study confirmed the importance of proper storage conditions for maintaining the antioxidant properties of haskap berries.
Published Version
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