METHOD FOR EXTRACTING ORGANIC SOLIDS AND OIL FROM MARINE ORGANISMS ENRICHED WITH ASTAXANTHIN

摘要

A method is for extracting shrimp oil. Particularly, shrimp processing water (EPC) is recovered and subjected to a dissolved air flotation (DAF) system after adding a flocculating agent. The suspended and dissolved solids form aggregates that are recovered from the surface by a procedure referred to as “skimming”. The skimming product is then directed into a horizontal centrifuge (decanter) in order to separate the solid phase (SOC) and the liquid phase having water and shrimp oil. The liquid phase is pumped into the 3-phase vertical centrifuge in order to separate the shrimp oil, the water, and the solids. The solids recovered after using the separator can then be added to the solid phase obtained after settling. The resulting shrimp oil is very rich in astaxanthin and the resulting water contains very little organic material and can be returned to the general processing plant effluent.