KARAKTERISASI DAN IDENTIFIKASI SENYAWA AKTIF PADA MINYAK IKAN TUNA (Thunnus albacares)

Abstract

Tuna (Thunnus albacares) is a fishery commodity that can be used as raw material for making fish oil. The fish oil extraction process can be carried out using the wet rendering method. However, the crude tuna fish oil's quality is still low, so it has not been used for food products. To improve the quality of crude tuna fish oil, a purification process is carried out consisting of degumming, neutralization, and bleaching. This research aims to determine the characteristics and identification of active compounds in purified tuna fish oil using the wet rendering method. Observation parameters in this research include analysis of color, odor, water content, yield, free fatty acid content, and peroxide value, as well as identification of active compounds in tuna fish oil using GC-MS (Gas Chromatography-Mass Spectrometry). Data analysis was carried out descriptively by comparing the data obtained with published literature. The results of the research showed that purified tuna fish oil extract using the wet rendering method produced characteristic fish oil with a golden yellow color, had a typical fish odor, had a water content of 0.427%, a yield of 0.487%, a free fatty acid content of 0.989%, and a peroxide value of 1,387 meq. /kg. The active compound content that dominates purified tuna fish oil consists of Eicosapentaenoic acid (EPA) 41.0389%; 9-Octadecenoic 33.7938%; and 9,12-Octadecenic acid 13.195%.