DETERMINATION OF THE BIOCHEMICAL PROPERTIES OF LIVER OIL FROM SELECTED CARTILAGINOUS FISH LIVING IN THE NORTHEASTERN MEDITERRANEAN

作者：Ozy A Lmaz; Oksuz A

来源：Journal of Animal and Plant Sciences, 2015, 25(1): 160-167.

• Carotene
• alpha-tocopherol
• element
• fatty acids
• hepatosomatic index
• cartilaginous fish

The objective of this research was to investigate the biochemical properties of liver oil from cartilaginous fish. The levels of carotene, alpha-tocopherol, trace elements, and fatty acid components were measured. The average carotene level of stingray liver oil was found to be thirteen times greater than that from the bignose shark. The levels of alpha-tocopherol in liver oil from three rays were found to be higher than those from all other cartilaginous fish. Levels of trace elements were additionally found to be lower. Total unsaturated fatty acids were found to be 63.70%, 64.85%, 63.04%, 63.29%, 59.04%, and 58.38% for the smooth-hound, bignose shark, guitarfish, stingray, eagle ray, and cownose ray, respectively. Surprisingly, the highest C18: 1n9 and C18: 1n7 levels and the lowest EPA-DHA levels were observed to be in the liver oil from the bignose shark. The findings also indicate that the levels of EPA in the liver oil of all the fish species studied were lower than those of DHA. This study concluded that the lipid levels and the amount of EPA and DHA in the liver oil of all the cartilaginous fish are sufficient to be used as commercial raw materials for the manufacturing of pharmaceutical and cosmetic products.

• 出版日期2015-2