Preferential oxidation of linolenic acid compared to linoleic acid in the liver of catfish (Heteropneustes fossilis and Clarias batrachus)
Journal Article
·
· Lipids; (United States)
OSTI ID:6253842
The fate of (1(-/sup 14/C) linoleic acid and (1(/sup 14/C) linolenic acid in the liver slices and also in the liver tissues of live carnivorous catfish, Heteropneustes fossilis and Clarias batrachus, was studied. Incorporation of the fatty acids into different lipid classes in the live fish differed greatly from the tissue slices, indicating certain physiological control operative in vivo. The extent of desaturation and chain elongation of linoleic and linolenic acids into long-chain polyunsaturated fatty acids was low. Linolenic acid was oxidized (thus labeling the saturated fatty acid with liberated /sup 14/C-acetyl-CoA) in preference to linoleic acid, and this oxidation also seemed to be under physiological control since both of the fatty acids were poorly oxidized in the tissue slices and in the killed fish. These fish can therefore recognize the difference in the acyl chain structures of linoleate and linolenate. The higher oxidation of linolenic acid and poor capacity for its conversion to longer chain, highly unsaturated derivatives indicates a higher demand for the dietary supply of these essential fatty acids in these two species.
- Research Organization:
- Department of Chemistry, Bose Institute, Calcutta, India
- OSTI ID:
- 6253842
- Journal Information:
- Lipids; (United States), Journal Name: Lipids; (United States) Vol. 17:10; ISSN LPDSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550201* -- Biochemistry-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
AQUATIC ORGANISMS
BIOCHEMISTRY
BIOSYNTHESIS
BODY
CARBON 14 COMPOUNDS
CARBOXYLIC ACIDS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISTRY
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DIET
DIGESTIVE SYSTEM
FISHES
GLANDS
IN VITRO
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LINOLEIC ACID
LINOLENIC ACID
LIVER
METABOLISM
MOLECULAR BIOLOGY
MONOCARBOXYLIC ACIDS
NORTH AMERICA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANS
OXIDATION
PHYSIOLOGY
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECIES DIVERSITY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TRACER TECHNIQUES
USA
VERTEBRATES
59 BASIC BIOLOGICAL SCIENCES
ANIMALS
AQUATIC ORGANISMS
BIOCHEMISTRY
BIOSYNTHESIS
BODY
CARBON 14 COMPOUNDS
CARBOXYLIC ACIDS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISTRY
CHROMATOGRAPHY
COMPARATIVE EVALUATIONS
DIET
DIGESTIVE SYSTEM
FISHES
GLANDS
IN VITRO
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LINOLEIC ACID
LINOLENIC ACID
LIVER
METABOLISM
MOLECULAR BIOLOGY
MONOCARBOXYLIC ACIDS
NORTH AMERICA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANS
OXIDATION
PHYSIOLOGY
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SPECIES DIVERSITY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
TRACER TECHNIQUES
USA
VERTEBRATES