Gram negative Shigella sonnei bacteria which spent 48 hours cultured on Hektoen enteric agar (HEK).
Acronym
HEK, HE, or HEA
Inventor
Hektoen Institute
Manufacturer
Hektoen Institute
Hektoen enteric agar (HEK, HE or HEA) is a selective and differential agar[1] primarily used to recover Salmonella and Shigella from patient specimens. HEA contains indicators of lactose fermentation and hydrogen sulfide production; as well as inhibitors to prevent the growth of Gram-positive bacteria. It is named after the Hektoen Institute in Chicago, where researchers developed the agar.
^Goo VY, Ching GQ, Gooch JM (September 1973). "Comparison of brilliant green agar and Hektoen enteric agar media in the isolation of salmonellae from food products". Appl Microbiol. 26 (3): 288–92. doi:10.1128/am.26.3.288-292.1973. PMC 379776. PMID 4584576.
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Hektoenentericagar (HEK, HE or HEA) is a selective and differential agar primarily used to recover Salmonella and Shigella from patient specimens. HEA...
as red colonies and most of accompanying bacteria are inhibited. Hektoenentericagar is designed to isolate and recover fecal bacteria of the family Enterobacteriaceae...
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exception of S. sonnei, which is always indole negative. Growth on Hektoenentericagar produces bluish-green colonies for Shigella and bluish-green colonies...
2015-05-07. Created: 30 September 2005. Last update: 01 April 2013 "HektoenEntericAgar". Austin Community College District. Retrieved 2015-05-03. Cassell...
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patient swab or biopsy is used to inoculate Sabouraud agar or brain heart infusion agar. Sabouraud agar is incubated at room temperature for macroscopic observation...
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