92144

Yeast Extract

suitable for microbiology

• CAS Number: 8013-01-2
• EC Number: 232-387-9
• MDL number: MFCD00132599
• eCl@ss: 42040000
• NACRES: NA.85

Properties

• biological source: Saccharomyces cerevisiae
• Quality Level: 200
• sterility: non-sterile
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: amino-nitrogen, ≥4.5% ; total nitrogen (N), ≥10%
• packaging: pkg of 25 kg; pkg of 5 kg; pkg of 500 g
• ign. residue: ≤15%
• loss: ≤8% loss on drying
• pH: 6.5-7.5 (25 °C, 2% in H₂O)
• solubility: H₂O: 2%, clear, light yellow to brownish-yellow
• application(s): food and beverages; microbiology
• suitability: molds; yeasts

Description

General description

Yeast Extract Powder is manufactured from selected strains of Saccharomyces cerevisiae. It is recommended for use in microbial culture media, fermentation and other biological studies. Yeast extract is manufactured under controlled conditions to retain its vitamin content and other nutritive values such as peptides, free amino acids, nucleic acids, minerals, trace elements, and phosphorous compounds. It is rich in vitamins, especially the B complex, and is often used to supply these factors in culture media at a concentration of 0.3 - 0.5%.

Application

Yeast extract is particularly used in media for the cultivation of microorganisms encountered in milk or other dairy products and in the media for the detection and enrichment of pathogens and indicator organisms.

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