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McFarland standards. No. 0.5, 1 and 2. In microbiology, McFarland standards are used as a reference to adjust the turbidity of bacterial suspensions so that the number of bacteria will be within a given range to standardize microbial testing.
Hardy Diagnostics is an American company that manufactures and sells bacteriological culture media, reagents, automated microscope slide staining machines, and rapid identification kits for microbiological testing in clinical, research, and industrial laboratories. The company's culture media is useful in the detection of bacterial pathogens ...
Czapek medium, also called Czapek's agar (CZA) [1] [2] or Czapek-Dox medium, is a growth medium for propagating fungi and other organisms in a laboratory. It was named after its inventors, Czech botanist Friedrich Johann Franz Czapek (May 16, 1868 – July 31, 1921) and American chemist Arthur Wayland Dox (September 19, 1882 – 1954).
Granada agar is used for the primary isolation, identification and screening of β-hemolytic GBS from clinical specimens. [ 2 ] [ 4 ] This culture medium is selective for GBS, nevertheless other microorganisms (such as enterococci and yeasts ), resistant to the selective agents used, can develop as colorless or white colonies.
Buffered charcoal yeast extract (BCYE) agar is a selective growth medium used to culture or grow certain types of bacteria, particularly the Gram-negative species Legionella pneumophila. [1] It has also been used for the laboratory diagnosis of Acanthamoeba keratitis , [ 2 ] Francisella and Nocardia spp .
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Blood agar plates (BAPs) contain mammalian blood (usually sheep or horse), typically at a 5–10% concentration. BAPs are enriched, and differential media is used to isolate fastidious organisms and detect hemolytic activity. β-Hemolytic activity will show lysis and complete digestion of red blood cell contents surrounding a colony.
CLED agar (cystine–lactose–electrolyte-deficient agar or medium) is a valuable non-inhibitory growth medium used in the isolation and differentiation of urinary microbes. It contains cystine and lactose and is electrolyte -deficient; the latter trait prevents the swarming of Proteus species.