KCTC provides the distribution services
** ph : -
** memo : -
** additional notes : Sterilize vitamin B12 separately by filtration. Prepare and store yeast cells as autoclaved
stock suspension (5 g baker's yeast/100 ml distilled water, adjust pH to 6.5 and
autoclave). Adjust pH of medium to 7.2 with KOH before, and after autoclaving and
cooling to 50?C (use pH-indicator paper).