Check the listing for details. YGC Agar Yeast Extract Glucose Chloramphenicol isolating & counting yeast & mold. Condition: Brand New. Listed at 12.87 USD. Yeast Glucose Chloramphenicol Agar, YGC Agar halal Yeast extract Glucose Agar Determination of the colony count of yeasts and molds in dairy and other food products Directions: Dissolve 40 g in 1 litre distilled water. Sterilize by autoclaving at 121°C for 15 minutes. Principle and Interpretation: Yeast extract acts as source of carbon, nitrogen, minerals, vitamins and other essential growth nutrients. D(+)-Glucose is the fermentable carbohydrate. YGC Agar contains chloramphenicol to inhibit the accompanying bacterial flora. This medium has the advantage of being fully autoclavable. Prepared plates are stable for at least 4 months (acc. to Engel, 1982). Storage:Store prepared media below 8°C, protected from direct light. Store dehydrated powder, in a dry place, in tightly-sealed containers at 2-25°C.