Not available outside of the UK & Ireland.

Application

Recommended for the microbiological assay of Niacin or Niacinamide.

Components

Ingredients (g/L)Casein acid hydrolysate vitamin free, 12.00Dextrose, 40.00Sodium acetate, 20.00L-Cysteine, 0.40DL-Tryptophan, 0.20Adenine sulphate, 0.02Guanine hydrochloride, 0.02Uracil, 0.02Thiamine hydrochloride, 0.0002Calcium pantothenate, 0.0002Pyridoxine hydrochloride, 0.0004Riboflavin, 0.0004p-Aminobenzoic acid, 0.0002Biotin, 0.00008Dipotassium phosphate, 1.00Monopotassium phosphate, 1.00Magnesium sulfate, 0.40Sodium chloride, 0.02Ferrous sulfate, 0.02Manganese sulfate, 0.02

Footnote

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.

Legal Information

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

Preparation Note

Suspend 7.51 g of Niacin Assay Medium in 100 ml of distilled water. Boil to dissolve the medium completely. Mix well to distribute the slight precipitate evenly. For the assay, dispense 5 ml of medium per assay tube (containing increasing amounts of standard or unknown) and make up the total volume to 10 ml per tube with distilled water. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 10 minutes. Cool immediately.