Ultrasound and enzymatic assisted extractions of bioactive compounds found in red grape skins Băbească Neagră (Vitis vinifera) variety - Serea, Daniela; Râpeanu, Gabriela; Constantin, Oana; Bahrim, Gabriela; Stănciuc, Nicoleta; Croitoru, Constantin (The Annals of the University Dunarea de Jos of Galati. Fascicle VI - Food Technology, 2021)