09182

Hefeextrakt

from Saccharomyces cerevisiae, powder

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

Eigenschaften

• biological source: Saccharomyces cerevisiae
• Quality Segment: 200
• 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%
• packaging: pkg of 1 kg, pkg of 5 kg
• 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: bacteria, molds, yeasts

Beschreibung

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

Ein Extrakt aus autolysierten Hefezellen. Hefeextrakt ist ein Gemisch aus verschiedenen Aminosäuren, Peptiden, wasserlöslichen Vitaminen und Kohlenwasserstoffen, darum wird er oft als Zusatz von Kulturmedien verwendet.

Sicherheitshinweise

• Lagerklasse: 11 - Combustible Solids
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• PSA (Persönliche Schutzausrüstung): Eyeshields, Gloves, type N95 (US)