STEROIDS Steroids form an important group of compounds based on the fundamental saturated tetracyclic hydrocarbon : 1,2-cyclopentanoperhydrophenanthrene (sterane or gonane). […]
Ethanolamine glycerophospholipids Analogous structures to those described for choline phospholipids exist for the ethanolamine phospholipids. The pattern of fatty acid distribution generally shows […]
HYDROXY ACIDS The hydroxyl group(s) may occur at various positions in the carbon chain which can be saturated or monoenoic. Some polyhydroxy fatty […]
FATTY ALCOHOLS Aliphatic alcohols occur naturally in free form (component of the cuticular lipids) but more usually in esterified (wax esters) or […]
POLYENOIC FATTY ACIDS These fatty acids (also called polyunsaturated fatty acids, PUFA) have 2 or more cis double bonds which are the […]
FATTY ACIDS Carboxylic acids occur in many molecular forms. At first It must be recalled that if the majority of the […]
FATTY ALCOHOLS Aliphatic alcohols occur naturally in free form (component of the cuticular lipids) but more usually in esterified (wax esters) or […]
AMINO COMPOUND-CONTAINING LIPIDS Amino acid-containing lipids Acyl carnitines Dopamine-containing lipids 5-HT containing lipids Aminoalcohol-containing lipids Urea-containing lipids A – AMINO ACID-CONTAINING […]
HISTORY OF OIL PAINT Till 1991 nothing was known on the organic part of parietal paintings from the Paleolithic time. Many assumptions were […]
STEROIDS Steroids form an important group of compounds based on the fundamental saturated tetracyclic hydrocarbon : 1,2-cyclopentanoperhydrophenanthrene (sterane or gonane). […]