Chocolate agar choc or chocolate blood agar cba, is a nonselective, enriched growth medium used for isolation of pathogenic bacteria. Chocolate agar base, with the addition of supplements, gives excellent growth of the gonococcus without overgrowth by contaminating organisms. The name is itself derived from the fact that red blood cell rbc lysis gives the medium a chocolate brown color. Agar m434 can also be used in place of chocolate agar base, which gives slightly better results than chocolate agar 4.
Summary and explanation bacto gc medium base was designed in 1947. Bbl chocolate ii agar slants gc ii agar with hemoglobin. Chocolate agar is used for the isolation of fastidious organisms, such as haemophilus influenzae, when incubated at. Mar 31, 2011 biochemical testing of this organism indicated n. Recetas con agar agar dukan recetas dukan maria martinez. This organism is oxidasepositive, and growth is best obtained on chocolate agar or thayer martin agar. Agar sangre agar chocolate by laura garcia on prezi. Another use of agar agar is in ptichye moloko birds milk, a rich jellified custard or soft meringue used as a cake filling or chocolate glazed as individual sweets. It is a variant of the blood agar plate, containing red blood cells that have been lysed by slowly heating to 80c.
In addition, if the specimen has been obtained from a neonate among whom e. The second type of chocolate agar is also a jellylike substance, but its prepared by adding blood usually obtained from sheep, pigs, goats, or cows to melted agar, slowly heating it until the blood turns a chocolate brown colour, and then pouring the appetizing mixture into dishes to cool and form a gel. Bd chocolate agar gc ii agar with isovitalex bd chocolate. Chocolate agar definition of chocolate agar by medical. Streptococcus pneumoniae y haemophilus influenzae salud. Agar agar may also be used as the gelling agent in gel clarification, a culinary technique used to clarify stocks, sauces, and other liquids. Macconkey agar is an indicator, a selective and differential culture medium for bacteria designed to selectively isolate gramnegative and enteric normally found in the intestinal tract bacilli and differentiate them based on lactose fermentation.
C, ambiente humedo y una atmosfera suplementada con co2. Product information and quality control sheet chocolate agar intended use chocolate agar is an enriched medium for the isolation and cultivation of fastidious microorganisms, especially neisseria and haemophilus species from a variety of clinical specimens. The centrifuged deposit should be inoculated on chocolate agar and incubated in a humidified atmosphere and 10%co 2, and on blood agar incubated aerobically. Let yourself be tempted by the latest innovations of jet cookies and cream. How to be productive at home from a remote work veteran. Every agar for step 1 chocolate agar, thayermartin agar, emb agar.
862 1164 463 1579 1247 117 1068 1216 896 1207 1173 14 642 445 1513 1604 1464 639 678 757 131 559 1124 73 84 1089 925 621 399 560 815 350 1045 1351