| Summary: | The objective of this study is to assess the proximate chemical composition, and the physical and techno-functional properties of blackberry pomace from different cultivars (‘Polar’, ‘Orkan’, ‘Brzezina’). Blackberry pomace primarily comprises seeds and other parts, such as pulps/skins. It serves as a rich source of bioactive compounds, particularly anthocyanins, and demonstrates notable functional properties, including water holding capacity, oil holding capacity, swelling capacity, and various fiber fractions. Moreover, anthocyanin-rich fruits are interesting due to their health-promoting properties and intensive color. Total anthocyanin content (TAC) ranged from 113.82 mg 100 g<sup>−1</sup> d.w. to 129.58 mg 100 g<sup>−1</sup> d.w. in blackberry pomace. Fiber fractions, including ADF, NDF, lignin, and WSCs, exhibited significant variations among the different blackberry pomace cultivars as well as color.
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