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Folic Acid Assay Medium

[所屬分類:培養基配方] [發布時間:2021-11-19] [發布人:網站管理員2] [閱讀次數:] [返回]

山東拓普生物工程有限公司培養基配方 //ljxinglong.com

Composition per liter:

Glucose ............................................................40.0g

Sodium citrate..................................................20.0g

Vitamin assay casamino acids..........................12.0g

K2HPO4..............................................................1.0g

KH2PO4..............................................................1.0g

MgSO4·7H2O .....................................................0.4g

L-Cystine ............................................................0.2g

DL-Tryptophan....................................................0.2g

Adenine sulfate ................................................0.02g

FeSO4·7H2O.....................................................0.02g

Guanine·HCl ....................................................0.02g

MnSO4·7H2O ...................................................0.02g

NaCl.................................................................0.02g

Uracil ...............................................................0.02g

Pyridoxine·HCl ...............................................4.0mg

Niacin..............................................................2.0mg

Riboflavin .......................................................2.0mg

Thiamine·HCl .................................................2.0mg

Calcium pantothenate .....................................0.4mg

p-Aminobenzoic acid......................................0.2mg

Biotin ...............................................................0.8μg

pH 6.8 ± 0.2 at 25°C

Source: This medium is available as a premixed

powder from BD Diagnostic Systems.

Preparation of Medium: Add components to

distilled/deionized water and bring volume to 1.0L.

Mix thoroughly. Gently heat and bring to boiling

with frequent mixing. Cool to 45°–50°C. Mix thor

oughly. Distribute into tubes or flasks. Autoclave for

10 min at 15 psi pressure–121°C.

Use: For the microbiological assaying of folic acid

using Enterococcus hirae as the test organism.