产品名称：酵母粉葡萄糖氯霉素琼脂
Product name：YGC Agar
产品用途：用于食品中霉菌及酵母菌总数测定（ISO标准）。
Product usage: Used for the determination of the total number of mold and yeast in food (ISO standard).
检验原理
Test principle
酵母浸粉提供碳源和氮源；葡萄糖提供能源；琼脂是培养基的凝固剂；氯霉素对革兰氏阳性、阴性细菌均有抑制作用且对后者的作用较强。常用于真菌的选择性分离，抑菌细菌的生长发育。
Yeast powder provides carbon and nitrogen sources. Glucose provides energy; AGAR is the coagulant of medium; Chloramphenicol can inhibit both gram-positive and Gram-negative bacteria, and has a stronger effect on the latter. It is often used for selective separation of fungi and growth and development of bacteriostatic bacteria.
配方成分
Formula ingredients
|
配方 Formula |
含量（g/L） Content (g/L) |
|
酵母浸粉 Yeast infusion powder |
5.0 |
|
葡萄糖 Glucose |
20.0 |
|
氯霉素 Chloramphenicol |
0.1 |
|
琼脂 Agar |
14.9 |
|
PH |
6.6±0.2 25℃ |
使用方法
Usage
称取本品40.0g，加热溶解于1000ml蒸馏水中，121℃高压灭菌15分钟，备用。
Weigh 40.0g of this product, heat and dissolve in 1000ml distilled water, autoclave at 121℃ for 15 minutes, set aside.
