o:28901 Ultrasound assisted extraction of rosehips Rosa canina L. en ABSTRACT In the present study, Rosa canina L. (Rosaceae) extracts were prepared using 0.75-2 mm particle size of rosehips, 70% ethanol, 1:100 g/mL solid-to-solvent ratio, and ultrasound probe (40% amplitude during 10 min and 50% amplitude during 15 min of ultrasound-assisted extraction). The extracts were characterized via analyzing total polyphenol content (TPC), antioxidant potential (ABTS assay), zeta potential, conductivity, pH, density, surface tension, and viscosity. TPC were 3.86±0.12 and 3.07±0.02 mg gallic acid equivalents (GAE)/g of plant material (40%, 10 min, and 50%, 15 min, respectively). ABTS radical scavenging activity was 1.76±0.01 and 1.43±0.01 mmol Trolox/g of plant material (40%, 10 min and 50%, 15 min, respectively). Zeta potential was -3.92±0.01 and -4.15±0.14 mV, conductivity was 0.073±0.001 and 0.064±0.001 mS/cm, while pH value was similar, 5.11 and 5.14 (40%, 10 min and 50%, 15 min, respectively). Density was 0.895±0.000 and 0.897±0.001 g/mL, the surface tension was 26.1±0.2 and 26.4±0.2 mN/m, whereas viscosity was 2.75±0.01 and 2.63±0.01 mPa·s (40%, 10 min and 50%, 15 min, respectively). Since the physical characteristics were similar in both extracts, while higher TPC and antioxidant potential were determined in the extract obtained at 40% of amplitude during 10 min of ultrasound-assisted extraction, this extract can be selected for further encapsulation and implementation into different food, pharmaceutical, and cosmetic products. 1552100 978-605-72180-0-1 2023-04-21T18:34:32.579Z 44 yes 46 Aleksandra Jovanović University of Belgrade, Institute for the Application of Nuclear Energy INEP, Serbia doktor nauka-tehnološko inženjerstvo-biotehnologija 0000-0001-5394-0125 Danica Ćujić University of Belgrade, Institute for the Application of Nuclear Energy INEP, Serbia doktor medicinskih nauka-farmacija person 0000-0002-6145-3850 Katarina Šavikin Institute for the Study of Medicinal Plants "Dr. Josif Pančić", Belgrade, Serbia person Jelena Živković Institute for the Study of Medicinal Plants "Dr. Josif Pančić", Belgrade, Serbia person Natalija Čutović Institute for the Study of Medicinal Plants "Dr. Josif Pančić", Belgrade, Serbia person Marija Gnjatović University of Belgrade, Institute for the Application of Nuclear Energy INEP, Serbia doktor biotehničkih nauka person 0000-0001-8233-1636 Branko Bugarski University of Belgrade, Faculty of Technology and Metallurgy, Serbia person application/pdf 10360 https://phaidrabg.bg.ac.rs/o:28901 no yes 18 70 92000004 11A29 10th International Conference on Advanced Technologies-ICAT'22, Van, Turkey Plusbase Akademi Publishing 2022