ATCC medium: 1686 5% sorbitol medium
Sorbitol.................... 50.0 g
Yeast extract............... 10.0 g
Peptone..................... 10.0 g
Agar........................ 15.0 g
Distilled water.............. 1.0 L
Adjust medium for final pH 6.0 with HCl. Autoclave at 121C for 15 minutes.