Fig. 1From: In vitro evaluation of the cholesterol-reducing ability of a potential probiotic Bacillus sppSelection of cholesterol oxidase (CHO) producers. a Colony staining method using a filter disc containing 4-aminoantipyrin, phenol and horseradish peroxidase, b plate assay using O-dianisidine and horseradish peroxidase. 1 Control (Bacillus cereus MCC 2015), 2 B. flexus MCC 2458, 3 B. flexus MCC 2427Back to article page