Physico - chemical properties and fatty acid profile of Odonus niger liver oil
Year: 2002
Type: article
Abstract: The oil yield from liver of the trash fish Odonus niger was asessed by four differ-ent methods: Soxhlet, Bligh and Dyer, direct steaming and solar extraction. The percentage of oil yielded by Soxhlet method was maximum (67.78%), fol-lowed by direct steaming (42.58%), Bligh and Dyer (54.3%) and solar extraction method (32.08%). The physico-chemical parameters such as solidification point, specific gravity, refractive index, cholesterol level and fatty acid profile of ex-tracted oils were estimated separately. The solidification point was 29.0 ± 0.5°C. The specific gravity ranged between 0.9519 to 0.9581. The refractive index was also almost similar in all the four oils (1.426 to 1.483µ). The cholesterol con-tents of the oil extracted by Bligh and Dyer, direct steaming extraction methods were highest (1950 and 2059 mg 100-1ml) and it was nearly 50 % less in other two methods. The percentage of PUFA in the total fatty acids of the oils were 13.78, 20.46, 19.07 and 22.54 % (by weight) in solar extraction, direct steaming, Soxhlet and Bligh and Dyer methods respectively.
Source: Indian Journal of Fisheries
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2116311358