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SKU
CDL/1023
Brand
CONDALAB
Pre-order (Deliver in 8 to 12 weeks)

PHENOL RED DEXTROSE AGAR 500 grams/bottle

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Phenol Red Dextrose Agar is similar to Dextrose Agar (Cat. 1021) with the addition of Phenol red as a pH indicator. It is recommended to determine the ability of various organisms to ferment dextrose. Being a solid medium it has the advantage of allowing fermentation reactions under aerobic and anaerobic reactions. Peptone mixture provides nitrogen, vitamins, minerals and amino acids essential for growth, and allows the abundant growth of a wide variety of fastidious microorganisms. Sodium chloride supplies essential electrolytes for transport and osmotic balance. Dextrose is the fermentable carbohydrate providing carbon and energy. Phenol red is the pH indicator. Bacteriological agar is the solidifying agent. Phenol Red Dextrose Agar is an excellent substrate for streptococci, as well as for other less fastidious bacteria. A yellow color indicates fermentation, as the acid production reacts with the Phenol red pH indicator. The formation of gas causes bubbles to appear at the base of the medium, which can lead to agar fragmentation.A control of Phenol Red Agar without carbohydrates should be used to control false positives.
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Brand CONDALAB
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