Antioxidant capacity of oil soluble and water dispersible carnosic acid (CA) extracted from dried rosemary
leaves using HPLC was evaluated at two different dosages (22.5 ppm vs 130 ppm) in raw and cooked ground
buffalo meat patties and chicken patties. Irrespective of total phenolic content, CA extracts reduced (p b 0.05)
the thiobarbituric acid reactive substances (TBARS) by 39%–47% and 37%–40% in cooked buffalo meat and
chicken patties at lower dosage (22.5 ppm) relative to control samples. However, at higher dosage
(130 ppm) the TBARS values were reduced (p b 0.05) by 86%–96% and 78%–87% in cooked buffalo meat
and chicken patties compared to controls. The CA extracts were also effective in inhibiting (p b 0.05)
peroxide value and free fatty acids in cooked buffalo meat and chicken patties. The CA extracts when used
at higher dosage, were also effective in stabilizing raw buffalo meat color.