B12 Assay Medium (Using L. Iechmannii) , 100 gr (M036)

Quality Control

Appearance : Cream to yellow homogeneous having a tendency to form soft lumps which can be easily broken down to powder form.

Colour and Clarity of prepared medium : Light amber coloured clear solution that may contain a slight precipitate.

Reaction : Reaction of 8.5% w/v aqueous solution at 25°C. pH : 6.1±0.2

pH : 5.90-6.30

Growth : Gradual increase in growth with increasing USP Cyanocobalamin reference standard levels of 0.0, 0.025, 0.050, 0.075, 0.1, 0.125, 0.150 and 0.2 ng per assay tube is recorded as equivalent increase in absorbance at 620nm.

Cultural Response : Microbiological assay of Vitamin B12 is carried out using Lactobacillus leichmannii ATCC 7830 after an incubation at 35-37°C for 18-24 hours.

Storage and Shelf Life:

Store dehydrated and the prepared medium at 2-8°C. Use before expiry date on the label. On opening, product should be properly stored dry, after tightly capping the bottle in order 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 Medium (Using L. Iechmannii) , 100 gr (M036) - HIMEDIA

B12 Assay Medium (Using L. Iechmannii) , 100 gr (M036) - HIMEDIA

Rp 1.561.000

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