SUPERCRITICAL-FLUID EXTRACTION OF POULTRY TISSUES CONTAINING INCURREDPESTICIDE-RESIDUES

A method using supercritical carbon dioxide to extract fat from poultr y tissue was developed. Tissues used in this study were peritoneal fat , breast tissue, leg and thigh tissue, and liver from chickens fed rat ions containing heptachlor, dieldrin, and endrin. The fat was isolated from the peritoneal tissue by supercritical fluid extraction (SFE) an d by thermal rendering. The fat was removed from the breast tissue, le g and thigh tissue, and liver by SFE and solvent extraction. The resul ts indicate that recoveries of organochlorine pesticide from the perit oneal, breast, leg, and thigh tissues by SFE extraction are equivalent to those obtained by conventional extraction methods. The pesticide r ecoveries by SFE extraction of the liver were higher than those obtain ed by solvent extraction.