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产(chan)品(pin)信息：

中文名称(cheng)：无氨基酵母(mu)氮(dan)源(yuan)    

英明名(ming)称：YNB/Yeast Nitrogen Base Without Amino acids 

酵(jiao)母(mu)氮源-无氨基(ji)酸
说明(ming)： 氨(an)基酸与碳(tan)水(shui)化合物需求基础上酵母(mu)分类(lei)。
外(wai)观(guan)： 白色或近白色粉末
储存条件： 粉(fen)末(mo)室温保(bao)存，溶液2-8℃保(bao)存。

Appearance……………….white to off-white powder  

Solubility…………………...clear to slightly hazy yellow solution at 0.67% (w/v) in water

说明：Yeast Nitrogen Base without Amino Acids is used for classifying yeasts based on amino acid and carbohydrate requirements. It contains all essential vitamins and inorganic salts necessary for the cultivation of yeasts except histidine, methionine, tryptophan and a source of carbohydrate.

Preparation instructions：

1. Prepare a 10× stock solution by suspending 6.7 g of yeast nitrogen base, 5 g of glucose or an equivalent amount of other carbohydrate, and 5-10 mg of the desired amino acid in 100 mL of distilled water.

2. Warm if necessary to solubilize and sterilize by filtration.

Store 10× stock solution at 2-8 °C. To use, dilute 1:10 with sterile distilled water under aspetic conditions.