lecithin – מילון אנגלי-אנגלי
lecithin
n.
fatty substance found in plant and animal tissues
Lecithin
Lecithin is a generic term to designate any group of yellow-brownish fatty substances occurring in animal and plant tissues, which are
amphiphilic - they attract both water (and so are
hydrophilic) and fatty substances (
lipophilic), and are used for smoothing food textures, dissolving powders (emulsifiers), homogenizing liquid mixtures, and repelling sticking materials. Lecithins are usually
phospholipids, composed of
phosphoric acid with
choline,
glycerol or other
fatty acids usually
glycolipids or
triglyceride.
Glycerophospholipids in lecithin include
phosphatidylcholine,
phosphatidylethanolamine,
phosphatidylinositol,
phosphatidylserine, and
phosphatidic acid.
lecithin
Noun
1. 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
(hypernym) phospholipid
Lecithin (das)
n.
lecithin, fatty substance found in plant and animal tissues
Lecithin
(n.)
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.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
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