Mineral Medium with 2-Chlorobenzoate (DSMZ Medium 457a)

[所属分类:培养基配方] [发布时间:2021-6-1] [发布人:网站管理员2] [阅读次数:] [返回]

Mineral Medium with 2-Chlorobenzoate
(DSMZ Medium 457a)

山东拓普生物工程有限公司 培养基配方 http://www.topbiol.com

Composition per liter:

Na 2 HPO 4 .....................................................................................2.44g
KH 2 PO 4 .......................................................................................1.52g
(NH 4 ) 2 SO 4 .....................................................................................0.5g
MgSO 4 ·7H 2 O................................................................................0.2g
Tween 80.......................................................................................0.2g
CaCl 2 ·2H 2 O.................................................................................0.05g
Trace elements solution SL-4 ..................................................10.0mL
Chlorobenzoate solution..........................................................10.0mL
pH 7.4 ± 0.2 at 25°C
Trace Elements Solution SL-4:
Composition per liter:
EDTA............................................................................................0.5g
FeSO 4 ·7H 2 O..................................................................................0.2g
Trace elements solution SL-6 ................................................100.0mL
Trace Elements Solution SL-6:
Composition per liter:
H 3 BO 3 ...........................................................................................0.3g
CoCl 2 ·6H 2 O ..................................................................................0.2g
ZnSO 4 ·7H 2 O.................................................................................0.1g
MnCl 2 ·4H 2 O................................................................................0.03g
Na 2 MoO 4 ·H 2 O ............................................................................0.03g
NiCl 2 ·6H 2 O.................................................................................0.02g
CuCl 2· ·2H 2 O................................................................................0.01g
Preparation of Trace Elements Solution SL-6: Add components
to distilled/deionized water and bring volume to 1.0L. Mix thoroughly.
Adjust pH to 3.4.
Preparation of Trace Elements Solution SL-4: Add components
to distilled/deionized water and bring volume to 1.0L. Mix thoroughly.
Chlorobenzoate Solution:
Composition per liter:
2-Chlorobenzoic acid..................................................................78.3g
Preparation of Chlorobenzoate Solution: Add 2-chlorobenzoic
acid to distilled/deionized water and bring volume to 1.0L. Mix thorough-
ly. Slowly add concentrated NaOH to adjust pH to 7.4. Filter sterilize.
Preparation of Medium: Add components, except chlorobenzoate
solution, to 990.0mL distilled/deionized water. Adjust pH to 7.4. Auto-
clave for 15 min at 15 psi pressure–121°C. Cool to room temperature.
Aseptically add 10.0mL chlorobenzoate solution. Mix thoroughly.
Aseptically distribute to sterile tubes or flasks.
Use: For the cultivation of chlorobenzoate-utilizing bacteria.