F5422
Folic acid assay medium
suitable for microbiology, NutriSelect® Plus
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About This Item
UNSPSC Code:
41171608
NACRES:
NA.85
eCl@ss:
34058014
sterility
non-sterile
form
powder
shelf life
limited shelf life, expiry date on the label
manufacturer/tradename
NutriSelect® Plus
technique(s)
microbiological culture: suitable
pH
6.8±0.2 (25 °C)
application(s)
food and beverages
pharmaceutical, microbiology
storage temp.
2-8°C
suitability
nonselective for Streptococcus spp.
Quality Level
Related Categories
Application
Recommended for the microbiological assay of folic acid using Streptococcus faecium as the test organism.
Preparation Note
Suspend 7.5 g of Folic Acid Assay Medium in 100 ml of distilled water. Boil to dissolve the medium completely. Mix well to distribute the slight precipitate evenly. For assay, dispense 5 ml of medium per assay tube, and add 5 ml of distilled water to each tube. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 10 minutes. Cool immediately.
Other Notes
Components (g/L)
Casein Acid Hydrolysate, Vitamin Free 12.00
Dextrose 40.00
Sodium Citrate 20.00
L-Cystine 0.20
DL-Tryptophan 0.20
Adenine Sulfate 0.02
Guanine Hydrochloride 0.02
Uracil 0.02
Thiamine Hydrochloride 0.002
Pyridoxine Hydrochloride 0.004
Riboflavin (Vitamin B2) 0.002
Nacin 0.002
p-Aminobenzoic Acid (PABA) 0.0002
Biotin 0.0000008
Calcium Pantothenate 0.0004
Dipotassium Phosphate 1.00
Monopotassium Phosphate 1.00
Magnesium Sulfate 0.40
Sodium Chloride 0.02
Ferrous Sulphate 0.02
Manganese Sulphate 0.02
Casein Acid Hydrolysate, Vitamin Free 12.00
Dextrose 40.00
Sodium Citrate 20.00
L-Cystine 0.20
DL-Tryptophan 0.20
Adenine Sulfate 0.02
Guanine Hydrochloride 0.02
Uracil 0.02
Thiamine Hydrochloride 0.002
Pyridoxine Hydrochloride 0.004
Riboflavin (Vitamin B2) 0.002
Nacin 0.002
p-Aminobenzoic Acid (PABA) 0.0002
Biotin 0.0000008
Calcium Pantothenate 0.0004
Dipotassium Phosphate 1.00
Monopotassium Phosphate 1.00
Magnesium Sulfate 0.40
Sodium Chloride 0.02
Ferrous Sulphate 0.02
Manganese Sulphate 0.02
We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
动植物来源培养基
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