M-Gredient^® Yeast Extract for Biotechnology and Microbiology

Yeast extract is a water-soluble derivative of yeast (Saccharomyces) cells. Our M-Gredient^® Yeast Extract A1 Granulated, Prime, for Biotechnology and Microbiology (Cat. No. 103753) is prepared by autolysis of a specifically selected yeast strain grown on a molasses-based media. The autolysis is carefully controlled to preserve the naturally occurring vitamins. After the autolysis, the yeast extract is separated, concentrated and then filtrated. In a next heat treatment step, pathogenic and spoilage microorganisms are destroyed. After another concentration step the product is spray dried and then finally granulated. The yeast extract is not of animal origin.

Our M-Gredient^® Yeast Extract A1 is a high-quality source for nitrogen, vitamins and further essential elements. In particular it is suitable for the use in culture media preparation for microbiological or biotechnological applications, as fast microbial growth is facilitated with it. In media solutions it appears clear and bright and it can be well mixed also with other media components. Our special granulation of the yeast extract ensures rapid and uniform dissolution in water, as well as convenient and safe handling, as it prevents clumping and inhalation of the airborne powder.

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.

Appearance (colour)brownish-yellowAppearance (description)granulesIdentityconformspH-value (2%; water)5.5 - 7.2N (Nitrogen) (calculated on dried substance)≥ 10.5%Sulfated ash (600 °C)≤ 17.0%Heavy metals (as Pb)≤ 0.005%Loss on drying (50 °C; <670 Pa; 3 h)≤ 5.0%Ca (Calcium)≤ 0.05%Mg (Magnesium)≤ 0.10%Chloride (Cl) (as NaCl)≤ 5.0%Phosphorous compounds (as P)≤ 2.5%Suitability for microbiologypasses test

M-GREDIENT is a registered trademark of Merch KGaA, Darmstadt, Germany