2.6. Evaluation of thermal stability of Senjed peel aqueous
extracts
Thermal stability of Senjed peel aqueous extracts was evaluated by
heating at 185 ℃ in a vacuum oven (Memmert GmbH, Schwabach, Germany) for
80 min by 10 min intervals in separate crucibles. After each interval, a
crucible was removed from the oven, cooled to room temperature and
stored at 4 ℃ before antioxidant activity evaluation in DDPH assay
system following the above-cited method.