CD Skripsi
Karakteristik Minyak Kepala Ikan Tuna (Thunnus Albacares) Yang Di Ekstraksi Menggunakan Metode Wet Rendering
ABSTRACT
The purpose of study was aimed to determine the best temperature of tuna fish
head oil extraction using the wet rendering method. This study was used a nonfactorial
Completely Randomized Design (CRD) using different of treatment
extraction temperatures, namely 0, 70 and 80℃). Analysis parameters consisted
was fat content, yield, free fatty acids, perioxide number, iodine, saponification,
and fatty acid profile. The results showed that the head of tuna (T. albacares) was
a fat content of 8.29%. The yield of fish oil extracted at temperatures of 60, 70
and 80°C was 1.65 ± 0.04, 3.25 ± 0.12, and 4.01 ± 0.10 (%). The results of the
analysis of the quality characteristics of consisted of the peroxide number of tuna
fish head oil extracted at a temperature of 60, 70, 80°C had 50.67 ± 0.22, 63.54 ±
0.07, and 73.68 ± 0.03 (meq/kg), respectively. Fish oil extracted at a temperature
of 60 ,70 and 80℃, the resulting free fatty acids were 1.22 ± 0.01, 1.47 ± 0.02, and
1.45 ± 0.01 (%), and iodine numbers 16.73 ± 0.16, 17.20 ± 0.10, and 17.16 ± 0.11
(mg/100g). The results of the analysis showed that the saponification numbers of
fish oil extracted at different temperatures (50, 60, and 80℃) were 266.76 ± 0.49,
222.86 ± 0.84, and 208.40 ± 0.65 (mg KOH/g). The fatty acid profile of tuna fish
head oil extracted at a temperature of 70℃ produced saturated fatty acids (SFA),
monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA)
were 18.68%, 16.29%, and 28.91%. The extraction temperature of 70℃ was the
best treatment because it produces the highest omega 3 fatty acids than other
treatments. The chemical quality characteristics of fish oil tuna head was in
accordance with IFOS standards except for the peroxide number in all treatments.
Keywords: characteristic of quality, fatty acid, omega 3, temperature
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