Open AccessExtraction and characterization of liver oil from silky shark (Charcharinus falciformis)
Author(s) -
Anhar Rozi,
Sugeng Heri Suseno,
Agoes Mardiono Jacoeb
Publication year - 2016
Publication title -
jurnal pengolahan hasil perikanan indonesia
Language(s) - English
Resource type - Journals
eISSN - 2354-886X
pISSN - 2303-2111
DOI - 10.17844/jphpi.v19i2.13109
Subject(s) - chemistry , oleic acid , palmitic acid , fatty acid , polyunsaturated fatty acid , extraction (chemistry) , acid value , food science , peroxide value , cadmium , zoology , nuclear chemistry , biochemistry , chromatography , biology , organic chemistry
Silky shark liver was 10-15% of its body mass and 50% of oil is contained in the liver. The aimed of this study was to determine heavy metal content, fatty acid profile on raw material, extraction of its oil, and parameter of oxidation. The method of heavy metal test stated on the SNI and fatty acid analysis referred to AOAC. The extraction was oven methode at 50, 60, 70, and 80°C in 8 hours. Cadmium (Cd) as the highest heavy metal content with 0.88±0.01 ppm, SFA was 18.46% composed by palmitic acid dominantly (12.59%). The MUFA was 24.54 % with the highest oleic acid (17.86%). PUFA was 19.11 % that consist of DHA (14.35%) as the most abundantly present while EPA was 1.50%. Shark liver oil which was extracted at 50°C had the highest yield (24.47%). The oxidation of silky shark liver oil extraction indicated the best treatment at 50°C with peroxide value (PV), p-Anisidine value (p-AV), percentage of free fatty acid (% FFA), acid value (AV), and total oxidation (TOTOX) were 7.26±1.27 mEq/kg, 16.79±0.28 mEq/kg, 5.47±0.12%, 10.88±0.25 mg KOH/kg, and 31.31±2.26 mEq/kg respectively.