Hektoen Enteric Agar Plates/W Antibiotics

Hektoen Enteric Agar Plates/W Antibiotics

Description:

Hektoen Enteric (HE) Agar is a moderately selective, differential medium designed to recover and differentiate Salmonella and Shigella from other enteric flora.  The bile salts inhibit most Gram-positive organisms and suppress many Gram-negative commensals.  The carbohydrates support acid production by non-target enterics such as coliforms. pH dyes such as bromothymol blue and acid fuchsin shift color to show whether the medium has become acidic from carbohydrate fermentation or alkaline from peptone metabolism.  Sugar-fermenting flora acidify the medium and shift the color toward yellow to orange.  Peptone metabolism by Salmonella and Shigella alkalinizes the medium, keeping the colonies and surrounding medium green to blue-green.  Sodium thiosulfate as a sulfur source and ferric ammonium citrate as an indicator yield a black ferrous sulfide precipitate where H₂S is produced.  Hektoen is often used in the isolation and differentiation of Salmonella and Shigella from fecal specimens diagnostics.  It is also used in food safety and public health labs to test food, water and environmental samples.

CO₂ incubation: CO₂ incubators can acidify the medium and alter pH, so plates should be incubated in ambient air, not in CO₂.


Size: 100 mm
Storage: Keep away from light at 4°C
Shipping Condition: Blue ice
Apeearance: green with a yellowish cast; clear to slightly opalescent gel.
Sterile

 *All agar plates are manufactured with ultrapure water, deionized and demineralized to minimize ionic and organic contaminants.  The premium ISO certified agar solution is sterilized by a full cycle of autoclaving.  Each 100mm plate has 20mL of agar medium in premium plastic dish


Customization:  Any of the antibiotics listed with the following agar.  Please inquire.

***Please select the antibiotic of interest***
 

Name	Cat.No	Concentration	Search
Gentamicin	DCP-HEAPG	10µg
Ampicillin Sodium Salt	DCP-HEAPAS	100µg
Amphotericin B	DCP-HEAPAB	2.5µg
Penicilln G	DCP-HEAPPG	25µg
Streptomycin Sulfate	DCP-HEAPSS	50µg
Carbenicillin	DCP-HEAPC	50µg
Tetracycline	DCP-HEAPT	20µg
Kanamycin	DCP-HEAPK	50µg
Chlorampheniocl	DCP-HEAPCP	50µg