Abstract:Two major bile acids were isolated from the gallbladder bile of two hornbill species from the Bucerotidae family of the avian order Bucerotiformes Buceros bicornis (great hornbill) and Penelopides panini (Visayan tarictic hornbill). Their structures were determined to be 3α,7α,24‐dihydroxy‐5β‐cholestan‐27‐oic acid and its 12α‐hydroxy derivative, 3α,7α,12α,24‐tetrahydroxy‐5β‐cholestan‐27‐oic acid (varanic acid, VA), both present in bile as their corresponding taurine amidates. The four diastereomers of varanic … Show more
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