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70161 Sigma-Aldrich

Yeast Extract

for microbiology

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Properties

Related Categories Base Ingredients for Media, Media, Media by Application, Media for Water Control, Media for Water Control (General),
grade   for microbiology
impurities   ~11% total nitrogen (N)
  ~5% amino nitrogen
ign. residue   ≤15%
loss   ≤6% loss on drying
pH   7.0±0.2 (2% in H2O)
solubility   H2O: soluble2%, clear, yellow

Description

Application

A water soluble extract of autolyzed yeast cells. Yeast extract is a mixture of amino acids, peptides, water soluble vitamins and carbohydrates and can be used as additive for culture media.

Price and Availability


Laboratory Gloves
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
ZF6610000

Documents

Certificate of Analysis

Protocols & Articles

Articles

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

Microbiology in Plant Peptones

In a time of animal diseases, like BSE, TSE or foot and mouth disease, it is important to have a good alternative possibility. 100% vegetable protein source that means no risk of BSE/TSE, no problems...

Microbiology's Basic Ingredient: Protein Sources (Peptones)

Peptones and extracts are excellent natural sources of amino acids, peptides and proteins in growth media. They are most often obtained by enzymatic digestion or acid hydrolysis of natural products, ...

Peer-Reviewed Papers
15

References

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