MacConkey HiVeg™ Broth (Double Strength) w/ Neutral Red is recommended for primary isolation of coliforms from large samples such as water or waste water. Bile salts inhibits the gram-positive bacteria. The media turns pink in case of lactose fermentors and yellow in case of lactose non- fermenters, due to neutral red indicator. Escherichia coli and Klebsiella aerogenes grows luxuriantlly on the media and shows positive reaction for acid and gas production. This medium is prepared by replacing animal peptones with vegetable defined peptones to avoid BSE/TSE/GMO risk.
Composition
Ingredients Gms / Litre
HiVeg® peptone 47.000
Lactose 20.000
Synthetic detergent 3.000
Sodium chloride 10.000
Neutral red 0.150
Final pH (at 25°C) 7.4±0.2
Formula adjusted, standardized to suit performance parameters
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