# 1077: PH MEDIUM ## Main sol. 1077 80 ml **Solution 1** 20 ml **Solution 2** 1. Combine solutions 1 and 2. ## Solution 1 1.68 g PPLO broth 80 ml Distilled water 1. Adjust pH to 6.5 and autoclave. ## Solution 2 18.7 ml Horse serum (inactivated) 0.936 ml Yeast extract (25%, autoclaved) 0.187 ml Fish-Sperm DNA (filter-sterilized) 0.187 ml Distilled water 1. Adjust pH to 7.8.