Kandungan Asam Lemak dan Karakteristik Fisiko-Kimia Minyak Ikan Lele dan Minyak Ikan Lele Terfermentasi (Fatty Acid Contents And Physico-Chemical Characteristics of Catfish Oil And Fermented Catfish Oil)

Abstract

Catfish oil and fermented catfish oil have not been developed and commercially produced as catfish derived products. Various processing of catfish oil will change both the composition and physico-chemical characteristics. The objective of this study was to identify the composition of fatty acids and physico -chemical characteristics of both catfish oil (MIL) and fermented catfish oil (MILT). Results showed that fatty acid composition of catfish oil was MUFA (36.12%)> PUFA> (32.43%)> SFA (31.45%), while the composition of fermented catfish oil was MUFA (42.96%)> SFA (42.32%)> PUFA (15.39%). The fermentation process with lactic acid bacteria increased the content of stearic acid but decreased the content of linoleic acid and linolenic acid. Physical and chemical characteristics of MIL and MILT were almost similar, they indicated oxidation process, based on melting point, viscosity, and thiobarbituric acid values. Therefore, in the production of catfish oil or fermented cat fish oil, it is necessary to add spices and/or nutrient as antioxidants sources. Keywords: catfish oil, PUFA, MUFA, SFA and CLA