Abstract
Catfish oil (CFO) is an oil product that can be obtained through catfish extraction by the dry rendering method and followed by a purification procedure. Fish oil has a high content of unsaturated fatty acid and is susceptible to oxidation and hydrolysis processes leading to a decrease in physical and chemical quality. Rice bran oil (RBO) which is rich in phenolic acid has a good antioxidant potential to inhibit the deterioration of fish oil during storage. This study aimed to determine the effect of the CFO and the RBO ratio on the physical and chemical quality of the CFO with the RBO addition during room temperature storage. This research used a completely randomized design with one factor. Data were analyzed by one-way analysis of variance method and continued by Duncan’s Multiple Range Tests (p<0.05). The ratio of CFO:RBO was 100:0, 90:10, 80:20, 70:30 and 60:40. Data were taken at storage times of weeks 0, 2, 4 and 6. Based on the results obtained, the ratio of 60(CFO):40(RBO) at week 0 has the best physical and chemical quality. It can be concluded that the addition of RBO on CFO effectively inhibits the hydrolysis and oxidation damage up to 6 weeks of room temperature storage.
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