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70172 Sigma-Aldrich

Peptone from casein, tryptic digest

for microbiology

Synonym: Peptone from casein, Tryptone from casein, enzymatic digest

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Properties

Related Categories Base Ingredients for Media, Microbiology, Protein Sources (Peptones & Extracts), Protein Sources (milk derived), Protein Sources A to Z More...
grade   for microbiology
impurities   ≥11% total nitrogen (N)
ign. residue   ≤15.0%
loss   ≤6.0% loss on drying
pH   6.7±0.5 (25 °C, 2% in H2O)
solubility   H2O: 2% clear, colorless to faintly brownish-yellow

Description

General description

A rich source of amino acids with a high content of tryptophan, useful for the identification of indole producing microorganisms.

Price and Availability


Laboratory Gloves
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3

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'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, ...

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