Pre-Poured Agar Plates | Sterile Culture Media Petri Dishes

Hektoen Enteric (HE) Agar Plate 90 mm – Ready-to-Use Selective Medium for Enteric Bacteria (Pack of 10)

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Hektoen Enteric (HE) Agar is a selective, differential culture medium used in food, environmental and laboratory microbiology for the isolation and differentiation of enteric bacteria, in particular Salmonella and Shigella. This ready-to-use prepared agar plate saves preparation time, reduces contamination risk and delivers consistent, batch-controlled performance.

Selective & differential design

  • Bile salts No. 3 suppress Gram-positive and non-enteric flora, allowing enteric bacteria to grow.
  • Lactose, sucrose and salicin, combined with bromothymol blue and acid fuchsin, produce clear colony colour differences.
  • Salmonella typically appears as green or blue-green colonies with black centers (H2S); Shigella appears as green colonies.

Ready-to-use & reliable

  • Supplied as 90 mm prepared plates, 20–25 mL agar per plate.
  • Gamma-irradiated, triple-layer sterile sealed packaging helps protect the medium and reduce contamination, condensation and dehydration.
  • Consistent, controlled pH (7.5 ± 0.2) and gel strength for reproducible results.

Typical composition (per litre)

  • Peptone 12.0 g; Beef extract 3.0 g; Lactose 12.0 g; Sucrose 12.0 g; Salicin 2.0 g; Bile salts No. 3 9.0 g; Sodium chloride 5.0 g; Agar 14.0 g; Bromothymol blue 0.065 g; Sodium thiosulfate 5.0 g; Ferric ammonium citrate 1.5 g; Acid fuchsin 0.1 g; Purified water 1000 mL; final pH 7.5 ± 0.2.

Storage & shelf life

  • Store at 2–8 °C, protected from light.
  • Shelf life: 90 days from production.

How to use

  1. Remove the plate from cold storage and allow it to equilibrate to room temperature.
  2. Transport the whole pack to the test site.
  3. Inoculate and incubate inverted at the specified temperature and time.
  4. Observe and count colonies.

Note

  • For laboratory/professional microbiological testing only. Not for clinical diagnosis. Single-use product; autoclave before disposal.
  • Do not use plates that are cracked, dry or contaminated.
  • Re-seal any unused plates and return to cold storage promptly.

Packaging

  • 90 mm × 10 plates per pack, gamma-irradiated, triple-layer sterile sealed packaging

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