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70171 Sigma-Aldrich

Peptone from casein, acid digest

for microbiology

Synonym: Peptone from casein

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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   ≤45% chloride (NaCl)
  ≥4.0% amino N
  7.0% total nitrogen (N)
loss   ≤6% loss on drying
pH   5.5±1.0 (25 °C, 2% in H2O)
solubility   H2O: 2% clear, faintly to slightly yellow

Description

Application

This peptone from casein is a protein hydrolysate prepared with hydrochloric acid followed by neutralization with sodium hydroxide. The high availability of amino acids in their native form is advantageous in many culture media formulations. It is compatible for use in applications where salt tolerant organisms are used.

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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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