Specificity of digestive lipases in hydrolysis of wax esters and triglycerides studied in anchovy and other selected fish.

Lipids
J S PattonA A Benson

Abstract

The physiological specificity of fat digestion in several species of marine fish was studied by incubating a variety of synthetic and natural lipid substrates in fish intestinal fluid. Wax ester and triglyceride hydrolyses were studied in vivo and in vitro. In vivo feeding studies showed triglyceride hydrolysis and reesterification in the gut occurred 4 times faster than wax ester metabolism. In vitro comparisons of wax and triglyceride lipolysis always showed triglycerides to be hydrolyzed faster than wax esters; however, wide variation in the ratio occurred among different batches of intestinal juice. Ca. 50% of the 2 monoglycerides formed in the lipolytic sequence were hydrolyzed. Esters of lipase resistent fatty acids (20:4 and 20:5) were cleaved faster than normal fatty acid esters (18:2 and 18:3). Two of the species studied, the northern anchovy, Engraulis mordax and the jack mackerel, Trachurus symmetricus, empty lipase(s) into their gall bladders and produce-phospholipid free bile.

References

Oct 15, 1975·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·A A BensonC E Field
Jan 1, 1974·Biomembranes·B Borgström
Jan 1, 1972·Annales De Biologie Animale, Biochimie, Biophysique·C Léger
Oct 8, 1968·Biochimica Et Biophysica Acta·R G MorganB Borgström
Nov 1, 1965·Proceedings of the Society for Experimental Biology and Medicine·I A Hansen, J F Mead
Aug 1, 1965·Biochemistry·J C NevenzelJ F Mead
Aug 1, 1959·Canadian Journal of Biochemistry and Physiology·E G BLIGH, W J DYER

❮ Previous
Next ❯

Citations

Aug 18, 1982·Biochimica Et Biophysica Acta·J S PattonM Hamosh
Jan 1, 1987·Progress in Lipid Research·R J Henderson, D R Tocher
Jan 1, 1986·Comparative Biochemistry and Physiology. A, Comparative Physiology·R K Buddington, S I Doroshov
Jan 1, 1988·Comparative Biochemistry and Physiology. A, Comparative Physiology·R E HonkanenJ S Patton
Jan 1, 1985·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·R R LinkoR Vuorela
Jan 1, 1988·Comparative Biochemistry and Physiology. B, Comparative Biochemistry·B A Rasco, H O Hultin
Oct 1, 1986·Proceedings of the National Academy of Sciences of the United States of America·R K Buddington, J M Diamond
Jul 25, 2014·Fish Physiology and Biochemistry·Koji MurashitaTakeshi Yamamoto
May 22, 1981·Biochimica Et Biophysica Acta·E LevyE Shafrir
Feb 28, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Mélanie GaillardCéline Audet
Jul 5, 2017·Photosynthesis Research·Arthur M Nonomura Govindjee
Jan 1, 1981·Journal of Morphology·Joseph T Eastman, Arthur L DeVries

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.