Extraction, fractionnement et concentration des huiles marines

Abstract

Marine oils are known to be potential polyunsaturated fatty acids (PUFA) with specific health and nutritional properties. These molecules are extracted from fish, algae and by-products resulting from the filleting operations. Heat treatments under pressure and extraction with organic solvents are widely used and compete with enzymatic processes. Fractionation including winterisation, urea complexation, molecular distillation and supercritical fluid extraction lead to PUFA concentrates used in the food, pharmaceutical and heath areas.