Thermo Scientific™ D/E (Dey-Engley) Neutralizing Broth

Description

• Neutralize chemical disinfectants to distinguish bacteriostatic and bactericidal activity in environmental sampling procedures using Thermo Scientific™ Remel™ D/E (Dey-Engley) Neutralizing Broth
• This medium was formulated by Engley and Dey in 1970 for neutralizing and testing antiseptics and disinfectants 1
• It is recommended in the Compendium of Methods for the Microbiological Examination of Foods by the American Public Health Association (APHA) for environmental sampling 2
• Neutralize chemical disinfectants to distinguish bacteriostatic and bactericidal activity in environmental sampling procedures using D/E (Dey-Engley) Neutralizing Broth
• The medium can neutralize a range of chemicals including mercurial, iodine or chlorine preparations, quaternary ammonium compounds, formaldehyde and glutaraldehyde
• Ready to Use: Convenience of prepared media
• Easy to Identify: As dextrose is utilized by the bacteria the pH indicator changes from a purple to yellow color
• Easy to differentiate: Subculture all tubes of D/E Neutralizing Broth to appropriate media such as D/E Agar to observe growth (viable microorganisms)
• Bacteriostatic substance – Growth from negative D/E Neutralizing Broth tubes
• Bactericidal substance – No growth from negative D/E Neutralizing Broth tubes
• Recommended in the Compendium of Methods for the Microbiological Examination of Foods by the American Public Health Association (APHA) for environmental sampling
• This medium contains peptone and yeast extract that provide nutrients such as amino acids, peptides, nitrogenous compounds, and B-complex vitamins which are necessary for growth
• Dextrose provides energy, lecithin neutralizes quaternary ammonium compounds, polysorbate 80 neutralizes phenolics, thioglycolate neutralizes mercurials, sodium thiosulfate neutralizes iodine and chlorine preparations and sodium bisulfate neutralizes formaldehyde and glutaraldehyde
• This medium is suitable for environmental sampling where neutralization of the chemical is important to determine its bactericidal activity
• Not all products are available for sale in all territories
• Please inquire
• Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.