Abstract: A novel process for the more efficient extraction with an edible oil of the red carotenoid pigment astaxanthin, from the chitinous shells and proteinaceous tissues of shellfish to provide an astaxanthin enriched dietary food ingredient, and other food products. A crustacean waste, e.g. a crawfish waste, is ground in an attrition mill to separate the soft proteinaceous tissue from the chitinous shell, the chitinous shell is removed, and the separated proteinaceous tissue is acidified to pH ranging from about 4 to 5.5 sufficient to suppress microbial degradation and improve overall pigment recovery. The acidified proteinaceous tissue is cooked, as a puree, in a kettle and extracted with certain edible oils at critical concentrations, at specified critical temperature-time relationships.