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agar
(redirected from chocolate agar)

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
a·gar  (gär, ägär) also a·gar-a·gar (gär-gär, ägär-ä-)
n.
1. A gelatinous material derived from certain marine algae. It is used as a base for bacterial culture media and as a stabilizer and thickener in many food products.
2. A culture medium containing this material.

[Short for Malay agar-agar.]

agar [ˈeɪgə]
n
(Chemistry / Elements & Compounds) a complex gelatinous carbohydrate obtained from seaweeds, esp those of the genus Gelidium, used as a culture medium for bacteria, a laxative, in food such as ice cream as a thickening agent (E406), etc. Also called agar-agar
[Malay]

agar  (gär, ägär)
A gelatinous material obtained from marine algae, especially seaweed, used as a medium for growing bacterial cultures in the laboratory and as a thickener and stabilizer in food products.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.agar - any culture medium that uses agar as the gelling agent
culture medium, medium - (bacteriology) a nutrient substance (solid or liquid) that is used to cultivate micro-organisms
agar-agar, agar - a colloidal extract of algae; used especially in culture media and as a gelling agent in foods
blood agar - a culture medium containing whole blood as the nutrient
2.agar - a colloidal extract of algae; used especially in culture media and as a gelling agent in foods
gum - any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying
agar, nutrient agar - any culture medium that uses agar as the gelling agent
Translations
agar [ˈeɪgəʳ] agar-agar [ˌeɪgərˈeɪgəʳ] nagar-agar m inv


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? Mentioned in ? References in periodicals archive
 
From each culture that showed macroscopic evidence of Neisseria, 3 colonies were subcultured onto chocolate agar plates.
The 1 -mm opalescent colonies usually appear after 24 to 48 hours of incubation at 37[degrees]C in cysteine-enriched broth, thioglycollate broth, cysteine heart-blood agar, buffered charcoal-yeast agar, or chocolate agar.
Efforts to culture the organism from biopsy specimens were again unsuccessful (different solid and liquid media, blood or chocolate agar, guinea pig, Balb/c mice).
 
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