2.3. Antioxidant Testing of Black Chokeberry Extract
ALDRICH, POLAND
The lyophilized black chokeberry extract was analyzed by antioxidant tests at the Lubuskie Center of Agrotechnical Innovation and Implementation of the University of Zielona Góra (Zielona Góra, Poland). For the tests, 2,2′-azino-bis(3-ethylbenzthiazoline -6-sulfonic acid) (ABTS), 2,2-di-phenyl-1-picrylhydrazyl radical (DPPH), and other reagents were purchased from Sigma Aldrich (St. Louis, MO, USA). Ultrapure water (Milli-Q) was used in all analyses (Millipore, Bedford, MA, USA).