blood agar


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Related to blood agar: nutrient agar, chocolate agar, MacConkey agar, Blood agar plate

blood a·gar

a mixture of blood, usually sheep or horse, and an agar-based medium used for the cultivation of many medically important microorganisms.

blood agar

n.
An agar medium that is enriched with whole blood and used to grow certain strains of bacteria.

blood agar

a culture medium consisting of blood (usually sheep's blood) and nutrient agar, used in bacteriology to cultivate certain microorganisms, including Staphylococcus epidermidis, Streptococcus pneumoniae, and Clostridium perfringens.

blood agar

An agar-based culture medium enriched with sterilised, defibinated sheep, rabbit or horse blood, which is used for primary plating and subculturing, especially to detect bacterial haemolysis.

blood a·gar

(blŭd ahgahr)
Mixture of animal blood, and an agar-based medium used to cultivate many medically important microorganisms.

blood agar

A bacterial culture medium of AGAR to which whole blood has been added. Blood agar selectively encouraged the growth of certain bacteria.

agar

a dried hydrophilic, colloidal substance extracted from various species of red algae. When suspended in a liquid medium and heated to 212°F (100°C), the agar dissolves. When it is allowed to cool to 110°F (43°C) the medium becomes a solid gel. It is used in culture media for bacteria and other microorganisms, in making emulsions, and as a supporting medium for immunodiffusion and immunoelectrophoresis. Because of its bulk it is also used in medicines to promote peristalsis and relieve constipation.

birdseed agar
one containing Guizotia abyssinicia (Niger) seed and creatinine, used for growing Cryptococcus neoformans. Called also Niger agar.
bismuth sulfite agar
a special preparation used for isolation of salmonellae from food.
blood agar
a culture medium used for the growth of bacteria. Consists of agar and intact erythrocytes.
brain heart infusion agar
used for cultivating the yeast phase of dimorphic fungi.
brilliant green agar
used to cultivate salmonellae.
chocolate agar
an enriched agar for the growth of Hemophilus, some Actinobacillus, and Taylorella spp. A molten agar and blood mixture is held at 122°F (50°C) prior to pouring plates. The additional nutrients supplied are hemin and NAD.
agar diffusion test
see antimicrobial sensitivity test.
eosin-methylene blue (EMB) agar
used for the identification of Eschericha coli.
agar gel immunodiffusion test
see immunodiffusion tests.
MacConkey agar
contains bile salts, lactose and neutral red indicator for isolation of enterobacteria.
mannitol salt agar
selective for staphylococci.
milk agar
contains skim milk and used to demonstrate casein digestion.
Niger seed agar
see birdseed agar (above).
nutrient agar
the basic growth medium for bacteria, composed of beef extract and peptone.
potato dextrose agar
used in cultivating fungi; promotes sporulation and pigmentation.
Sabouraud's dextrose agar
one used for isolation of fungi. See also dermatophyte test medium.
agar sausage
see medium sausage.
xylose lysine (XLD) agar
used to differentiate Enterbacteriaceae.
References in periodicals archive ?
Table 1 : Biochemical and microbiological properties of isolated bacterium Test Result Test Result Gram reaction positive MR negative Haemolisis negative VP negative CAMP test positive Motility negative catalase positive urease negative oxidase positive Nitrate reduction negative glucose negative OF negative lactose negative Produce of Indole negative sucrose negative pyruvate positive xilose negative motility positive Blood agar culture Mucoid colonies DNase negative Mc conkey agar No growth H2S negative culture Spore absent coagulase negative
By utilising a less toxic alternative to cycloheximide, Modified Butzler (ISO) Selective Supplement provides a safer means of suppressing overgrowth by saprophytic fungi and yeasts in Columbia Blood Agar cultures, thus achieving a rating one hazard class lower than the traditional formulation.
Yersinia pestis grows well both on 5% sheep blood agar and on chocolate agar, as well as in brain heart infusion broth and most commercial blood culture media.
pneumoniae is based on the hemolysis pattern when cultured on blood agar plates and by additional biochemical tests on the cultured organisms: optochin sensitivity, the Quellung reaction, and bile solubility [4].
In plates using the impregnated Pi-Ray fabric, the area of the blood agar plate in contact with the Pi-Ray fabric did not grow microorganisms, while in the control fabric those areas in contact with the fabric, as well the areas not in contact with the fabric, did show microbial growth," Jaresko said.
After 48 h of incubation, cultures of blood and ascetic fluid were plated onto sheep blood agar and chocolate agar and incubated at 35[degrees]C in an atmosphere of 5% C[O.
After 48 hours incubation, small colonies were visualised on both the chocolate and blood agar plates.
1 ml of the container transferred onto blood agar plates and other 0.
For cerebrospinal fluid (CSF), body fluids and respiratory specimens (sputum and bronchoalveolar lavage, BAL), sample was inoculated on sheep blood agar and MacConkey agar for 48 h and incubated aerobically and in 5-10 per cent C[O.
The inoculums from the RCM media were seeded onto 10% goat blood agar and incubated anaerobically with an anaerobic gas-pack system (BBL Microbiology Systems Cockeysville, Md.
Duff challenged attendees not only to find out whether their labs use the less effective--and less expensive--protocol, but also to "force your lab" to use the recommended process: initially growing the culture in a nutrient broth, then subculturing it onto a selective blood agar plate.