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61300 Sigma-Aldrich

Lactalbumin hydrolysate

for microbiology, Nutrient for fermentations and other applications

Synonym: Peptone from lactalbumin



Related Categories Base Ingredients for Media, Microbiology, Protein Sources (Peptones & Extracts), Protein Sources (milk derived), Protein Sources A to Z More...
grade   for microbiology
shelf life   limited shelf life, expiry date on the label
impurities   ≥11% Total nitrogen
ign. residue   ≤10%
loss   ≤6% loss on drying
pH   6.8±0.5 (25 °C, 2% in H2O)
solubility   H2O: soluble2%, clear to very faintly turbid (light yellow to yellow and light brown-yellow to brown-yellow and light brown to brown)


General description

Lactalbumin contains high levels of essential amino acids.It is recommended for applications requiring a highly soluble source of amino acids and peptides. It is especially useful in fermentations, laboratory media and in tissue culture.

Other Notes

Sales restrictions may apply

Same product — same quality — now Sigma-Aldrich brand

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 


Certificate of Analysis

Protocols & 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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