lecithin

Definitions

  • WordNet 3.6
    • n lecithin a yellow phospholipid essential for the metabolism of fats; found in egg yolk and in many plant and animal cells; used commercially as an emulsifier
    • ***
Webster's Revised Unabridged Dictionary
    • n Lecithin (Physiol. Chem) A complex, nitrogenous phosphorized substance widely distributed through the animal body, and especially conspicuous in the brain and nerve tissue, in yolk of eggs, and in the white blood corpuscles.
    • ***
Century Dictionary and Cyclopedia
    • n lecithin A nitrogenous fatty substance, to which the formula C44H90NPO9 has been given, which is found in small quantity in the blood, bile, and other fluids of the body, but most abundantly in the brain- and nervetissues, in pus, and in the yolk of eggs. It is slightly crystalline, has a greasy feel, and is insoluble in water but soluble in alcohol, ether, and chloroform. It decomposes readily into stearic acid, glycerin-phosphoric acid, and cholin or neurin.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Gr. le`kiqos the yolk of an egg

Usage

In literature:

Lecithin is isolated from animal brain, or egg-yolk, and commercial lecithin is impure.
"Epilepsy, Hysteria, and Neurasthenia" by Isaac G. Briggs
These acids are the electrolytic division products of lecithin.
"Valere Aude" by Louis Dechmann
Lecithin is also found in the brain and nerve material of animals, in the yolk of egg, and in several plants.
"The Bacillus of Long Life" by Loudon Douglas
Lecithin is a glyceride.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
Had he used water and mineral acid instead, he would not have found lecithin, but only its components.
"History of Phosphorus" by Eduard Farber
Had he used water and mineral acid instead, he would not have found lecithin, but only its components.
"Smithsonian Institution - United States National Museum - Bulletin 240" by Anonymous
***

In news:

NHLBI SMARTT Program Awards AlphaCore Pharma Funding to Manufacture Potential Treatment for Familial Lecithin-Cholesterol Acyltransferase (LCAT) Deficiency.
Jif's version: sugar, vegetable oils (rapeseed and palm), hazelnuts , cocoa processed with alkali, skim milk, whey powder, sunflower lecithin, natural flavor.
Sugar, vegetable oil (palm), hazelnuts , cocoa, skim milk, whey, soy lecithin, vanillin (artificial flavor).
NHLBI SMARTT Program Awards AlphaCore Pharma Funding to Manufacture Potential Treatment for Familial Lecithin -Cholesterol Acyltransferase (LCAT) Deficiency.
Can lecithin keep your arteries clean.
Lecithin gel capsules ( Photo Researchers ).
Lecithin (LEH-suh-thun) is a waxy material found in the protective sheath that surrounds nerve fibers and plays a vital role in keeping the nervous system healthy.
Degussa Food Ingredients, a key supplier of non-GMO lecithins to the food industry, is warning processors of major supply problems on the horizon.
Physical and chemical methods used to quantify lecithins.
Sponsored by the International Lecithin & Phospholipid Society (ILPS).
The lawsuit says that Taco Bell 's "seasoned beef" contains other ingredients, including water, wheat oats, soy lecithin, maltodrextrin, anti-dusting agent and modified corn starch.
NHLBI SMARTT Program Awards AlphaCore Pharma Funding to Manufacture Potential Treatment for Familial Lecithin-Cholesterol Acyltransferase (LCAT) Deficiency .
Who was this German oil and lecithin pioneer, and how did his inventions change the lecithin world.
During his professional life he published over 60 papers about fats, oils, and lecithins, all in German.
The Tubilizer acts as a means to instantly mix and coat the individual protein particles with a food-grade surfactant such as lecithin.
***

In science:

Hexane filled vesicles were formed by emulsifying hexane, containing a small amount of soy lecithin (1 g/l), with water containing a quantity of vaterite spheres.
Optical microrheology using rotating laser-trapped particles
Such a growth of the passage density was observed by Harbich et al. in egg-lecithin membrane stacks .
Amphiphilic Membranes
With straightforward modifications, this theory was used to investigate mechanical properties of the lecithin bilayer membranes.
Biological and synthetic membranes: What can be learned from a coarse-grained description?
To calculate the bending moduli of the lecithin vesicles, Leermakers et al. [ 294] proposed to use spherically curved lattices that can accommodate either lattice random-walks or RIS chains.
Biological and synthetic membranes: What can be learned from a coarse-grained description?
Despite the fact that the model then provides a reasonable account of the stability and structure of the curved, pure lecithin bilayers, this approach has been criticized in a later work (see below).
Biological and synthetic membranes: What can be learned from a coarse-grained description?
Molecular structure of the lecithin ripple phase.
Biological and synthetic membranes: What can be learned from a coarse-grained description?
***