Dey-Engley Neutralizing Agar
(D/E Agar Disinfectant Testing)

201040080500

Dey-Engley Neutralizing Agar (D/E Agar Disinfectant Testing) is a medium used in disinfectant testing where the neutralization of antiseptics and disinfectant is important for determining its bactericidal activity.

Composition* 

Ingredients
g/L
Casein Enzymic Hydrolysate
 5.0
Yeast Extract 
2.5
Dextrose
10.0
Sodium Thiosulphate
6.0
Sodium Thioglycollate
1.0
Sodium Bisulphite
2.5
Lecithin
7.0
Polysorbate 80
5.0
Bromocresol Purple
0.02
Agar
15.0

*Adjusted to suit performance parameters.
  Final pH (at 25°C): 7.6 ± 0.2

g/L: Suspend 54.02 g of the powder in 1000 mL purified / distilled water.

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