Studies on antioxidant activity of tempeh oil

Various oils, such as soy, cottonseed, corn, safflower, and lard may be protected from autoxidation by the addition, often in small amount, of tempeh oil. Tempeh is obtained from cooked, dehulled soybeans by fermentation with the fungus Rhizopus oligosporus . The oil is extracted from dried tempeh with hexane/alcohol 2:1 and recovered by evaporation of the solvents. This crude oil was used in most of the experiments quoted.