1.03753

Extrait de levure en granules

suitable for microbiology, medium granules

• Synonyme(s) : Extrait de levure en granules
• Numéro CAS: 8013-01-2
• Numéro MDL: MFCD00132599
• Code UNSPSC : 41106212
• Numéro de classement CE : 232-387-9

Propriétés

• Source biologique: yeast
• Niveau de qualité: 200
• Forme: medium granules
• Température d'inflammation spontanée: >200 °C
• Durée de conservation: limited shelf life, expiry date on the label
• Conditionnement: pkg of 25 kg; pkg of 5 kg; pkg of 500 g
• pH: 7.0 (20 °C, 10 g/L in H₂O)
• Solubilité: 410 g/L
• Densité: 0.5 g/cm³ at 20 °C
• Masse volumique apparente: 490 kg/m³
• Application(s): microbiology
• Température de stockage: 15-25°C

Description

Description générale

Yeast extract granulated is manufactured from selected strains of Saccharomyces cerevisiae. It 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 and is often used to supply these factors in culture media at a concentration of 0.3 - 0.5%. Yeast extract provides a complete source of nutrients for microorganisms and is particularly useful for the cultivation of fastidious bacteria that require specific nutrients or additional growth factors. It can be used alone or in combination with other sources of nutrients, such as peptones or salts.

Application

Yeast extract is commonly used as an ingredient in many microbial culture media for the growth and identification of bacteria, yeasts and molds from various pharmaceutical, environmental, food and beverage samples.

Caractéristiques et avantages

Our Granulated media are:

• Safer - Significant reduction of inhalation of toxic and allergenic substances resulting in fewer allergic responses. Less contamination of working tools and environment
• Accurate - No separation of components and no clumping, even under humid or warm conditions, ensure a uniform product with higher performance accuracy
• Fast - Rapid and uniform dissolution in water
• Easier - Easier handling and weighing due to the better flow properties. Media do not stick to the flask or container
• Reliable - Homogenous distribution of ingredients guarantees high reproducibility even if only small amounts of media are used.

Liaison

Remplace : 1,03753

Remarque sur l'analyse

Aspect (couleur)jaune-brunâtreAspect (description)granulesIdentitéconformepH (2 %, eau)5,5 à 7,2N (azote) (calcul sur matière sèche)≥ 10,5 %Cendres sulfatées (600 °C)≤ 17,0 %Métaux lourds (exprimés en Pb)≤ 0,005 %Perte au séchage (50 °C ; < 670 Pa ; 3 h)≤ 5,0 %Ca (calcium)≤ 0,05 %Mg (magnésium)≤ 0,10 %Chlorures (Cl) (exprimés en NaCl)≤ 5,0 %Composés du phosphore (exprimés en P)≤ 2,5 %Utilisable en microbiologietest réussi

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable