09182

Yeast Extract

for technical purposes (in fermentation)

• Synonym(s): YE, Baker’s yeast extract
• CAS Number: 8013-01-2
• EC Number: 232-387-9
• MDL number: MFCD00132599
• UNSPSC Code: 41106212
• eCl@ss: 42040000
• NACRES: NA.85

Properties

• biological source: Saccharomyces cerevisiae
• Quality Level: 200
• grade: for technical purposes (in fermentation)
• sterility: non-sterile
• Assay: ≤3% amino-nitrogen basis; ≥9% total nitrogen (N) basis
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: amino-nitrogen, ≤3% ; total nitrogen (N), ≥9%
• impurities: ≤16% ash; ≤8% non-dissolved
• loss: ≤8% loss on drying
• pH: 6.5-7.5 (2% in H₂O)
• solubility: H₂O: 2%, turbid, yellow
• application(s): food and beverages; microbiology
• storage temp.: 2-25°C
• suitability: molds; yeasts

Description

General description

Yeast extract is an 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. It is a non-animal and low endotoxin peptone suitable for use in fermentations media for cultivation and resuscitation of a large variety of fastidious microorganisms. It is rich in vitamins and other nutritive substances and so, recommended for general laboratory media

Application

Yeast extract is recommended for use in culture media and for the mass 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