Bacteroides fragilis colonies growing on AnaeroGRO™ Bacteriodes Bile Esculin Agar. 

I would have to say that that is positive for bile esculine hydrolysis.

Bacteria in this group and nonhemolytic, sacchrolyitic, and produce many enzymes such as DNAse, fibrinolysin, and heparinase. They have a capsule, which makes them extremely virulent. and they are resistant to many antibiotics.