Study Set Content:
Waxes (Ex
Spermaceti
Alcohols containing the cyclopentanophenanthrene.
3. Sterols
3. Sterols (Ex
Cholesterol & Ergosterol)
Esters consisting of glycerols in combination with fatty acids, phosphoric acid and certain nitrogenous compounds.
Phospholipids (Phosphatides)
Phospholipids (Phosphatides) The important of this group is the
lecithins
ubstances isolated from the brain and from various other sources which on hydrolysis yields fatty acids, galactose, and nitrogenous compound sphingosine (2 amino-4- octadecene-1,3-diol)
Glycolipids (Cerebrosides)
Glycolipids Ex:
phrenosin & kerasin
FIXED OILS CLASSIFIED BASED ON THE ABILITY TO ABSORB OXYGEN FROM THE AIR
Drying oils
Semi drying oils
Non-drying oils
Oxygen saturates the double bond to form oxides that may polymerize to form hard films
Drying oils
Important property of drying oils in paint industry
Oxygen saturates the double bond to form oxides
Hydrogenation of the liquid oils produces semi solid fat that are extensively used in cooking fats and shortening.
Semi drying oils
Oils obtained by the reaction of glycerine with fatty acid that do not contain unsaturation or contain limited unsaturation.
Non-drying oils
GENERAL USE OF FIXED OILS AND FATS
1. Emollient
2. Manufacture of soaps, paints, varnishes and as lubricants
3. Sclerosing agents
4. Topical antifungal agents, dietary supplements and agents for 5. pharmaceutic necessity
6. Vehicles for medicaments
7. Parenteral nutrients in hyperalimentation regimens
Castor oil Sources / Species
Ricinus communis
Olive Oil
Olea europaea
Peanut Oil
Arachis hypogea
Soybean Oil
Glycine Soja
Cottonseed Oil
Gossypium hirsutum
Sesame Oil
Sesamum indicum
Almond Oil
Prunus amygdalus
