Open AccessPhysicochemical properties, fatty acid composition and FTIR Spectra of Gabus (Channa striata) fish oil
Author(s) -
F. Syifa,
N. Hidayah,
E. Lukitaningsih,
Irnawati Irnawati,
Abdul Rohman
Publication year - 2022
Publication title -
food research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.218
H-Index - 7
ISSN - 2550-2166
DOI - 10.26656/fr.2017.6(2).197
Subject(s) - iodine value , chemistry , peroxide value , linoleic acid , saponification value , fish oil , saponification , arachidonic acid , composition (language) , acid value , fourier transform infrared spectroscopy , fatty acid , fish <actinopterygii> , food science , chromatography , biochemistry , biology , fishery , enzyme , linguistics , philosophy , physics , quantum mechanics
This study aimed to characterize Gabus fish oil (GFO) with the scientific name of Channastriata through the determination of physicochemical properties, fatty acid composition,and FTIR spectra. Gabus fishes was obtained from Palagan (Central Java) and Bantul(Yogyakarta). Physicochemical properties of GFOs from Palagan and Bantul revealedacid values of 5.93±0.19 mg KOH/g and 2.39±0.05 mg KOH/g, saponification value of163.39±1.96 mg KOH/g, 176.82±2.98 mg KOH/g, iodine value of 109.76±1.23 g I2/100 g,94.21±0.16 g I2/100 g, peroxide value of 4.04±0.15 meq O2/kg and 4.03±0.59 meq O2/kg.Both oils showed significant differences in terms of physicochemical properties (P<0.05)except peroxide value having no significant difference (P>0.05). Fatty acid composition ofGFO as determined by gas chromatography revealed that GFO contains a higher amountof unsaturated fatty acids such as linoleic acid and palmitoleic acid. Besides, GFOcontains arachidonic acid which is act as a precursor for prostaglandin synthesis. FTIRspectrum of GFO is unique in terms of exact wavenumbers and peak intensities whichsupported that FTIR spectra are fingerprints that can be used for the characterization ofedible fish oils