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ASBC Methods of Analysis - Microbiological Control-5: Differential Culture Media

ASBC Methods of Analysis

Microbiology

Microbiological Control-5
Differential Culture Media

VIEW METHOD

Summary
Differential media have provided additional means for identifying microbiological contaminants in the brewery. This has been achieved by differential antibiotic action or by medium composition that suppresses the growth of one type of microorganism or enhances the growth of another. This method provides instructions for preparing cycloheximide medium, Lee’s multi-differential agar, Raka-Ray lactic acid bacteria medium, lysine medium, Lin’s wild yeast differential medium, Barney-Miller brewery medium, De Man Rogosa Sharpe medium, MYGP + copper medium, CLEN medium for wild yeast, selective medium for Megasphaera and Pectinatus, nystatin in selective media, and Hsu’s Lactobacillus and Pediococcus medium.