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山東拓普生物工程有限公司

Shandong Tuopu Biol-Engineering Co.,Ltd

Antibiotic Assay Medium No. 41
Composition per liter:
Glucose .......................................................................................20.0g
Sodium citrate.............................................................................10.0g
Casein enzymatic hydrolysate ......................................................9.0g
Yeast extract..................................................................................5.0g
K2HPO4 .........................................................................................1.0g
KH2PO4 .........................................................................................1.0g
pH 6.8 ± 0.2 at 25°C
Source: This medium is available as a premixed powder from Hi-
Media.
Preparation of Medium: Add components to distilled/deionized
water and bring volume to 1.0L. Mix thoroughly. Distribute into tubes
or flasks. Autoclave for 10 min at 15 psi pressure–121°C.
Use: For the microbiological assay of thiostrepton using Streptococ-
cus faecium ATCC 10541.