70161

Yeast Extract

suitable for microbiology

• Synonym(s): YE, Baker’s yeast extract
• CAS Number: 8013-01-2
• EC Number: 232-387-9
• MDL number: MFCD00132599
• eCl@ss: 42040000
• NACRES: NA.74

Properties

• biological source: Saccharomyces cerevisiae
• Quality Level: 200
• sterility: non-sterile
• assay: ≥11% total nitrogen (N) basis; ~5% amino-nitrogen basis
• form: powder
• ign. residue: ≤15%
• loss: ≤6% loss on drying
• pH: 7.0±0.2 (2% in H₂O)
• solubility: H₂O: 2%, clear, yellow
• application(s): environmental; food and beverages; microbiology
• storage temp.: 2-25°C
• suitability: molds; yeasts

Description

General description

A water-soluble extract of autolyzed yeast cells, yeast extract is a mixture of amino acids, peptides, and water-soluble vitamins, for example, intact vitamin B12 complex and carbohydrates, and can be used as an additive for culture media and fermentation media. It can also be used in the resuscitation of a large variety of fastidious microorganisms.

Application

Yeast extract is recommended for use in culture media and the cultivation of various microorganisms. It provides multi-functional nutrient supplements that can also be used in microbial fermentation.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves