Phosphatide, definition

Definition and example of a glycerophospho-lipid Phospholipids that contain glycerol are called glycerophospholipids or phosphoglyc-erides. All contain phosphatidic acid, the simplest glycerophospholipid. When an alcohol, such as choline, is esterified to phosphatidic acid, the product is phosphatidylcholine. 

Mechanically Extracted Meals. Solvent extracted oilseed meals typically contain less than 1.5% residual fat unless the gums (hydrated phosphatides) or soapstock have been added back to the meal before the desolventizer-toaster or meal dryer. Mechanically extracted (expeller or screw-pressed) meals can contain 4—9% oil, which can be a significant calorie source in animal feeds. Fat contents of extracted meals are not part of the definition, although typical analyses are shown below. 

The term lipid is frequently used to denote a wide variety of natural products fatty , oily or waxy substances of animal and vegetable origin that are easily soluble in organic solvents readily satisfy this loose definition. Thus, such diverse compounds as fatty acids and their derivatives, triglycerides, sterols, phosphatides and sphingolipids, carotenoids, bile acids, vitamins A, D, E, and K, long-chain alcohols, terpenes, etc., may be included. Studies of these substances by GC are indeed numerous a comprehensive survey of this field is beyond the scope of this... 

Synonyms Phosphatidic acid, ammonium salt Definition Ammonium salts of phosphatidic acids derived from edible fats and oils Properties Unctuous semisolid sol. in fats partly sol. in ethanol insol. in water Uses Emulsifier in foods, dairy-based beverages vise, control agent for molten chocolate, substitute for soya lecithin in cocoa, chocolate prods., confectionery Features Flavor-free Ammonium phosphite CAS 51503-61-8... 

In Fig. 32 a (upper curve) the results are given for a soya bean phosphatide fraction (alcohol-soluble) h In this figure the reversal of charge concentration for each of the two salts separately is taken as 100% (CaCL = 0.045 N NaCl = 2.8 N).. We see that in this case at a definite NaCl concentration the CaCL concentration needed for reaching the reversal of charge point is more than twice as high (224%) as in the blank. 

According to most legislative definitions lecithins are mixtures of phosphatides (= phospholipids) derived from vegetable and animal origins. The EU approved food additive number E322 covers all standard, physical fractionated and enzymatically hydrolysed lecithins for use in the food industry. Hydroxylated and acetylated lecithins do not have an EU approved food additive status. 

Definition Coconut oii derived phosphoiipid composed predominantly of diester and triester phosphatides with multiple chain groups Ionic Nature Cationic... 

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