Open AccessMitochondrial and peroxisomal β‐oxidation capacities in various tissues from Atlantic salmon Salmo salar
Author(s) -
FrØyland,
Lie,
Berge
Publication year - 2000
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1046/j.1365-2095.2000.00130.x
Subject(s) - peroxisome , salmo , biology , beta oxidation , catabolism , biochemistry , juvenile , potassium cyanide , mitochondrion , fatty acid , cyanide , fishery , metabolism , fish <actinopterygii> , chemistry , ecology , gene , inorganic chemistry
In order to investigate the capacities of different tissues to oxidize fatty acids, total β‐oxidation (mitochondrial and peroxisomal) of [1– 14 C]palmitoyl‐CoA was determined in liver and red‐ and white muscle from adult and juvenile Atlantic salmon Salmo salar. By including potassium cyanide (KCN) in the assay medium, it was possible to differentiate between mitochondrial and peroxisomal β‐oxidation capacities. Mitochondrial β‐oxidation dominated in all tissues except in livers from juvenile fish where the peroxisomal β‐oxidation dominated. In general, the red muscle possesses the highest fatty acid oxidation capacity, however, by taking into consideration the fact that white muscle occupies approximately 60% of the total body weight, this study demonstrates that the white muscle is an important tissue in the overall fatty acid catabolism.