Welcome to the Refreshed Chemopharm Webstore!
 
SKU
CDL/1025
Brand
CONDALAB
Pre-order (delivery in 8 to 12 weeks)

DESOXYCHOLATE LACTOSE AGAR 500 grams/bottle

Login For Price
Desoxycholate Lactose Agar is a differential and slightly selective medium for the isolation of gram-negative enteric bacilli. It is used to isolate and enumerate coliforms from water, wastewater, milk and dairy products. The desoxycholate and citrate salts inhibit the development of gram-positive organisms. The Bacteriological peptone provides nitrogen, vitamins, minerals and amino acids essential for growth. Lactose is the fermentable carbohydrate providing carbon and energy. Sodium chloride supplies essential electrolytes for transport and osmotic balance. Neutral red is a pH indicator. Bacteriological agar is the solidifying agent. In general, it is used for the enumeration of coliforms by the dilution method. This is accomplished by adding 1 ml of the desired dilution to an empty Petri dish and pouring it on the cooled (45-50 °C) medium. If the product to be tested has not been diluted (e.g. pasteurized milk), it can be added directly to the melted medium and poured plates. It is convenient to put a second layer of medium on the plate after initial solidification. Coliform colonies are lenticular, pink or bright red. Differentiation is made on the basis of the lactose fermentation: lactose fermenters in the presence of neutral red give red colonies while non-fermenters give colorless colonies (Salmonella and Shigella). If no second layer is applied, the colonies of Escherichia coli which develop on the surface of the plate are large and pink while Enterobacter aerogenes are pale with a pink center.
More Information
Brand CONDALAB
Write Your Own Review
You're reviewing:DESOXYCHOLATE LACTOSE AGAR 500 grams/bottle
Your Rating
Who Viewed This Also Viewed
  1. Perforated platform 100
    Perforated platform 100 Brand: HEIDOLPH SKU: HD/549-59100-00
    Login For Price
  2. Wash Bottles LDPE 125ml 12/pk
    Wash Bottles LDPE 125ml 12/pk Brand: COLE-PARMER SKU: CP/OO/O/P-06053-21
    Login For Price
  3. pH10.01 Buffer solution, 480ml (ECBU10BT) (01X211203)
    pH10.01 Buffer solution, 480ml (ECBU10BT) (01X211203) Brand: EUTECH SKU: EU/SO/PH/BU-10BT480
    Login For Price
  4. StrepTactin Sepharose High Performance 10ml (Store in Chiller at 2 to 8 DEG C)
    StrepTactin Sepharose High Performance 10ml (Store in Chiller at 2 to 8 DEG C) Brand: CYTIVA SKU: GE/28935599
    Login For Price
  5. GD/X Syringe Filter PVDF 25mmx0.2um/150
    GD/X Syringe Filter PVDF 25mmx0.2um/150 Brand: WHATMAN SKU: WH/MI/BO/68722502
    Login For Price