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Not AvailablePresent study was conducted to optimize natural phenols mixture which can yield the antioxidative effect equivalent to 500 ppm ascorbic acid (AA) in raw and cooked ground chicken patties stored under refrigeration. Purified rosemary extract (Oxikan-R) with 2.8% carnosic acid (CA) and 0.55% carnosol has been incorporated into ground chicken patties at 0.05% (low-dose), 0.18% (high-dose) and compared with 0.05% AA and non-treated control. Oxikan-R and AA are effective (p< 0.05) in limiting the lipid oxidation in both raw and cooked chicken patties. Protective effects of antioxidants in stabilizing the meat color through reduction (p< 0.05) of % metmyoglobin, % dena- tured myoglobin and improved redness scores (a*-value) were observed during storage. Reduction in total plate counts of chicken patties treated with Oxikan-R compared to control suggested the antimicrobial activity of Oxikan-R. Present study demonstrates the efficacy of Oxikan-R as a natural alternative to ascorbic acid.Not Availabl