Hepatic Agar Medium

Principle: Liver Extract Powder provides carbon and nitrogen sources, vitamins and growth factors; Glucose starch provides a carbon source; Sodium sulfite and ferric ammonium citrate are used to detect the production of hydrogen sulfide, which makes the center of the colony black; Agar is a coagulant; Sodium carbonate neutralizes acids produced by bacterial growthUsage: weigh 34. 87g of this product, heat and dissolve it in 1000ml distilled water, divide it, autoclave it at 121 °C for 15min, and set aside.