Middlebrook ADC Enrichment BD BBL™ 10 x 20 ml. Contains Albumin, Dextrose, Catalase, and Sodium Chloride. Used to supplement culture media for the isolation and cultivation of Mycobacteria for Middlebrook 7H10 Agar, Cat. Nos. 262710 andMycobacteria 7H11 Agar, Cat. No. 283810.