Bearberry is one of the lesser-studied natural antioxidants.
Carpenter, O'Callaghan, O'Grady, Kerry, and O'Brien (2006) investigated
the antioxidant activity of several plant extracts under oxidative
stress in cells and found bearberry to be a strong antioxidant.
Several studies have been conducted on the antioxidant activity
of bearberry at several concentrations in raw and cooked pork patties
held under refrigerated conditions. Carpenter et al. (2007) examined
effects of bearberry (obtained from Clonminam Industrial Estate,
Portlaoise, Co., Laois, Ireland) in raw and cooked pork. Bearberry
was used at a concentration of 80 μg/g meat. Pork patties were cooked
at 180 °C for 8 min to an I.T. of 72 °C. Both cooked and raw patties
were packaged in polystyrene/ethyl vinyl alcohol/polyethylene trays
with low oxygen-permeable film and flushed with a 75% O2:25% CO2
mixture. Fat content of these patties was not provided. Carpenter
et al. (2007) found that lipid oxidation of treated samples (0.21±
0.2 mg MDA/kg muscle) was significantly reduced compared with
the control (0.91±0.01 mg MDA/kg muscle) in raw pork patties