Oxoid™ Half Fraser Supplements (1 vial per 225ml) pk 10

Oxoid™ Half Fraser Supplement is used in the selective enrichment of Listeria species, particularly in the early stages of detection from food and environmental samples. When added to Half Fraser Broth Base, it enhances selectivity by inhibiting competing flora while allowing recovery of stressed or low-level Listeria cells.

Supplied in convenient ampoules, the supplement ensures accurate dosing and consistent performance. It is typically used in the first enrichment step of standardized methods such as ISO 11290.

Key Features:

• Form: Liquid supplement
• Application: Selective enrichment of Listeria spp. from food and environmental samples
• Usage: Add to Half Fraser Broth Base after sterilization and cooling
• Function: Enhances recovery of Listeria while suppressing background flora
• Pack Size: Commonly available in 10 x 2.5 mL ampoules (check specific product details)
• Standards: Suitable for use in ISO 11290-compliant workflows

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