DSMZ 1330 . ASAIA GYP MEDIUM

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Equipment needed:

Final pH: 6.8

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ml
Compound Amount Unit
Glucose 10 g
Glycerol 10 g
Peptone 10 g
Yeast extract 5 g
CaCO3 7 g
Distilled water 1000 ml
Agar , for solid medium 15 g
1 The medium may be solidified by adding 15 g/l agar. Calcium carbonate in the medium serves as a buffer. The calcium carbonate will settle in agar plates before the agar has set, producing an opaque layer in the bottom. As the strain grows and acid is produced this will react with the calcium carbonate, causing it to dissolve and form zones of clearing immediately below the colonies. pH 6.8