| | Potato | 200 | g | | | Yeast extract | 2 | g | | | Glucose | 20 | g | | | Distilled water | 1 | L | | | Agar | 20 | g | | | pH 5.6 | | | | | Wash potatoes with tap water, peel and cut into 1 cm cubes. Rinse with tap water quickly and boil 200 g of potato cubes with 1 L of distilled water for 20 min. Mash and squeeze through a muslin bag. Add agar and boil till melted. Add yeast extract and glucose, and stir till dissolved. Make up to 1 L. Adjust pH. Autoclave to sterilize. |
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