B12 Assay Agar (Using E. Coli Mutant Culture, 100 gr (M110)

Quality Control

Appearance Cream to yellow homogeneous free flowing powder

Gelling Firm,comparable with 1.5% Agar gel

Colour and Clarity of prepared medium Medium amber clear to slightly opalescent gel forms in Petri plates.

Reaction Reaction of 5.15% w/v aqueous solution at 25°C. pH : 7.2±0.2

pH 7.00-7.40

Cultural Response Microbiological assay of Vitamin B12 was carried out using E.coli mutant 113-3 Davis ATCC 11105 as a test organism. Cultural characteristics observed after an incubation at 35- 37°C for 18-24 hours, good growth was obtained around cups containing Vitamin B12 showing an increase in diameter of zone of growth in proportion the increasing Vit B12 concentration in the cup.

Storage and Shelf Life :

Store between 10-30°C in a tightly closed container and use freshly prepared medium. Use before expiry date on the label. On opening, product should be properly stored dry, after tightly capping the bottle inorder to prevent lump formation due to the hygroscopic nature of the product. Improper storage of the product may lead to lump formation. Store in dry ventilated area protected from extremes of temperature and sources of ignition. Seal the container tightly after use. Product performance is best if used within stated expiry period.

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B12 Assay Agar (Using E. Coli Mutant Culture, 100 gr (M110) - HIMEDIA

B12 Assay Agar (Using E. Coli Mutant Culture, 100 gr (M110) - HIMEDIA

Rp 2.060.000

Deskripsi