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  • Title: Carriers based on dairy by-products and dehumidified-air spray drying as a novel multiple approach towards improved retention of phenolics in powders: sour cherry juice concentrate case study.
    Author: Barańska A, Michalska-Ciechanowska A, Wojdyło A, Mykhailyk VA, Korinchevska TV, Samborska K.
    Journal: J Sci Food Agric; 2024 Feb; 104(3):1497-1510. PubMed ID: 37804151.
    Abstract:
    BACKGROUND: Sour cherry juice concentrate powder can serve as a modern, easy-to-handle, phenolics-rich merchandise; however, its transformation into powdered form requires the addition of carriers. In line with the latest trends in food technology, this study valorizes the use of dairy by-products (whey protein concentrate, whey, buttermilk, and mixes with maltodextrin) as carriers. A new multiple approach for higher drying yield, phenolics retention (phenolic acids, flavonols and anthocyanins) and antioxidant capacity of powders were tested as an effect of simultaneous decrease of drying temperature due to the drying air dehumidification and lower carrier content. RESULTS: Dairy-based carriers were effective for spray drying of sour cherry-juice concentrate. The drying yield was increased and retention of phenolics was higher when compared with maltodextrin. The application of dehumidified air, which enabled the drying temperature to be reduced, affected drying yield positively, and also affected particle morphology and retention of phenolics (the phenolic content was approximately 30% higher than with spray drying). CONCLUSIONS: The study proved that it is possible to apply dairy-based by-products to produce sour cherry juice concentrate powders profitably, lowering the spray-drying temperature and changing the carrier content. Dehumidified air spray drying can be recommended for the production of fruit juice concentrate powders with improved physicochemical properties. © 2023 Society of Chemical Industry.
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