Synonyms | Citrem |
Citric acid esters of mono- and diglycerides |
Citroglycerides |
Mono- and diglycerides of fatty acids esterified with citric acid |
Definition | Esters of glycerol with citric acid and fatty acids occurring in food oils and fats. They may contain small amounts of free glycerol, free fatty acids, free citric acid and free glycerides. They may be partially or wholly neutralised with sodium hydroxide or with potassium hydroxide |
Description | Yellowish or light brown liquids to waxy solids or semi-solids |
Identification | |
A.Positive tests for glycerol, for fatty acids and for citric acid | |
B.Solubility | Insoluble in cold water |
Dispersible in hot water |
Soluble in oils and fats |
Insoluble in cold ethanol |
Purity | |
Acids other than citric and fatty acids | Not detectable |
Free glycerol | Not more than 2 % |
Total glycerol | Not less than 8 % and not more than 33 % |
Total citric acid | Not less than 13 % and not more than 50 % |
Sulphated ash (determined at 800 ± 25 oC) | Non-neutralised products: not more than 0,5 % |
Partially or wholly neutralised products: not more than 10 % |
Lead | Not more than 2 mg/kg |
Free fatty acids | Not more than 3 % estimated as oleic acid |