Purple Broth

[所属分类:培养基配方] [发布时间:2021-7-16] [发布人:网站管理员2] [阅读次数:] [返回]

Purple Broth

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

Composition per liter:

Pancreatic digest of gelatin.........................................................10.0g
NaCl..............................................................................................5.0g
Bromcresol Purple ......................................................................0.02g
Carbohydrate solution..............................................................20.0mL
pH 6.8 ± 0.2 at 25°C
Source:  This medium is available as a premixed powder from BD Di-
agnostic Systems.
Carbohydrate Solution:
Composition per 20.0mL:
Carbohydrate...............................................................................10.0g
Preparation of Carbohydrate Solution: Add carbohydrate to
distilled/deionized water and bring volume to 20.0mL. For expensive
carbohydrates, 5.0g may be used instead of 10.0g. Mix thoroughly. Fil-
ter sterilize.
Preparation of Medium: Add components, except carbohydrate
solution, to distilled/deionized water and bring volume to 980.0mL.
Mix thoroughly. Adjust pH to 7.4 if necessary. Distribute into tubes
containing an inverted Durham tube. Fill each tube with 9.8mL of me-
dium. Autoclave for 15 min at 15 psi pressure–121°C. Aseptically add
0.2mL of sterile carbohydrate solution to each tube.
Use: For the preparation of liquid fermentation media. Bacteria that
can ferment the carbohydrate turn the medium yellow.