B366 

YEAST NITROGEN BASE W/O AMINO ACIDS

Formula

Ingredients 

gms/lit.

Ammonium sulphate

Monopotassium phosphate

Magnesium sulphate

Sodium chloride

Calcium chloide

Boic acid

Coppe sulphate

Potassium iodide

Ferric chloride

Manganese sulphate

Sodium molybdate

Zinc sulphate

Biotin

Calcium pantothenate

Folic acid

Inositol

Niacin

p-Amino benzoic acid (PABA)

Riboflavin (vitamin B2)

Pyridoxine hydrochloride

Thiamine hydrochloride

5.00

1.00

0.50

0.10

0.10

0.0005

0.00004

0.0001

0.0002

0.0004

0.0002

0.0004

0.000002

0.0004

0.000002

0.002

0.0004

0.0002

0.0002

0.0004

0.0004

Final pH (at 25°C) : 5.4 + 0.2

Directions 

For the results the medium is prepared in 10X strength. Suspend 6.7 gms. in 1000ml. distilled water. add 5 gms. dextrose or an equivalent amount of other carbohydrate and other chemicals like amino acids that modify growth of yeasts as desired. Ensure complete solution and sterilize by filtration. For the use, dilute 0.5 ml. 10X medium to make 5 ml. with sterile distilled water. Mix well

Print This Page

Close Window