Fresh and desiccated gall bladders of the Ursidae family (bears) obtai
ned as criminal evidence were characterized by analysis of the princip
al biliary components, mainly ursodeoxycholyl-taurine, cholyl-taurine
and chenodeoxycholyl-taurine using TLC and HPLC. This bile acids profi
le appears to be an Ursidae family characteristic. Results show that o
f the samples from Asia only 3% were from the Ursidae family and 18% w
ere from ''farmed bears.'' Samples seized in the U.S.A. and Canada sho
wed that 22.6% and 85% respectively, were from Ursids. The remaining s
amples were consistent with bile from the domestic pig (Suidae).