Physical, chemical, and sensory properties of water kefir produced from Aronia melanocarpa juice and pomace

•Water kefir like beverages were produced from Aronia melanocarpa juice and pomace.•The sensory analyses showed no difference in all tested groups.•Kefir made from aronia pomace demonstrated a greater antioxidant activity.•Both pomace and juice kefir had high levels of polyphenol, flavonoid and anthocyanin.•Aronia pomace is a good substitute especially for vegan and allergic individuals.