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60641 Sigma-Aldrich

KF-Streptococcus Agar

for microbiology

Synonym: Kenner Fecal Agar



Related Categories A - M, All Food Control Media (alphabetical), All Solid Media/Agars, Enterococcus, Media,
grade   for microbiology
shelf life   limited shelf life, expiry date on the label
composition   agar, 20 g/L
  bromocresol purple, 0.015 g/L
  lactose, 1 g/L
  maltose, 20 g/L
  proteose peptone, 10 g/L
  sodium azide, 0.4 g/L
  sodium chloride, 5 g/L
  sodium glycerophosphate, 10 g/L
  yeast extract, 10 g/L
final pH   7.2±0.2 (25 °C)
suitability   selective and differential for Enterococcus
  selective and differential for Streptococcus



For the detection and enumeration of enterococci in water, food and other material.

Other Notes

Can be prepared and melted by microwave energy; Cultivation and enumeration of streptococci in surface waters

Preparation Note

Supplement: 10 ml/l 1% triphenyltetrazolium chloride solution (Cat. No. 17779)

Price and Availability

Safety & Documentation

Safety Information

Hazard statements 
Precautionary statements 
Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & Articles


Microbiological Control of Spices and Herbs

Cultures around the world rely on herbs and spices to add flavour and zest to food. Many spices, however, contain very high numbers of bacteria, making them a potent source for food spoilage and path...
Jvo Siegrist
AnalytiX Volume 10 Article 1
Keywords: Growth factors, Microbiology

Microbiology Introduction

An initial aim of all microbiologists is the reproducible growth of their microbial cultures, no matter whether the microorganisms are of natural origin or have been genetically engineered by man. Re...
Keywords: Absorption, Aerobic, Anaerobic, Antibiotics, Antimicrobials, Buffers, Culture media, Diffusion, Environmental, Filtration, Genetic, Growth factors, Metabolism, Phase transitions, Precipitation, Reductions, Respiration, Sample preparations, Vitamins

Microbiology Theory: Media Preparation

Microorganisms need nutrients, a source of energy and certain environmental conditions in order to grow and reproduce. In the environment, microbes have adapted to the habitats most suitable for thei...
Keywords: Culture media, Digestions, Environmental, Filtration, Growth factors, Indicators, Microbiology, Phase transitions, Precipitation, Vitamins

Peer-Reviewed Papers


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