Puree of potato was prepared with the addition of natural antioxidants such as carrots, chicken liver and underwent bacteriological and chemicals testing for the detection of anti-oxidative stress by assessing the fatty acid oleic and peroxide value and total nitrogen, the results showed that all of the carrot and liver individually contributed to the effectiveness of a good anti-oxidants liver carrot showed more effective in a good test for the peroxide oxidation and carrot showed more effectiveness in a good test in oleic as anti-oxidants and showed more effectiveness as good anti-oxidants in the test the total nitrogen.