ausamics

Yeast Extract Powder

For preparation of microbial culture media.

Cat. Number: AS-1010

For ordering and getting more information about product details, please contact us.

Yeast extract powder is a product obtained through drying yeast cell extract. This process yields a finely powdered substance rich in essential nutrients for bacterial growth, such as nitrogen, carbon, vitamins (especially the vitamin B group), and free amino acids.

This versatile powder finds extensive use in various industries, including microbiology, biotechnology, and food production. In microbiology, it serves as a vital ingredient in preparing culture media. Its nutrient-rich composition supports the growth and development of bacteria, yeasts, and molds.

Moreover, industries widely utilize yeast extract powder in biotechnology for producing enzymes, proteins, and antibiotics. Its high content of free amino acids makes it an ideal supplement for promoting microbial growth and enhancing product yields.

Additionally, yeast extract powder is a valuable natural additive in the food industry. It enhances flavors and provides essential nutrients, making it popular in the production of soups, broths, sauces, and other food products. It also supports microbial fermentation processes in food production.

Shelf life and storage

Store yeast extract powder between 10-30 °C in a ventilated and low humidity place and protected from light. Close the container tightly after use. Use before expiry date.

Note that yeast extract powder is for R&D use only. DO NOT USE for drug, household, or any other uses.

Quality Control

Typical analysis

Powder appearanceLight yellow to brownish yellow, homogenous, free flowing
SolubilityCompletely soluble in water, insoluble in alcohol
2% solution appearanceClear, light yellow
pH (2% in water)6.5 – 7.5

Chemical analysis

Total nitrogen≥10.5
Sodium chloride≤5
Amino nitrogen≥4.5
Moisture≤6

Amino acid composition (mg/g)

Aspartic acid65
Threonine26
Serine24
Glutamic acid115
Proline23
Glycine30
Alanine48
Cysteine-
Methionine9
Isoleucine31
Leucine42
Tyrosine11
Phenylalanine26
Histidine14
Lysine46
Arginine32
Tryptophan-

Microbial Quality Control

 Cultural response after 18-48 hours incubation at 35-37 °C on Plate Count Agar (AS-1328) prepared by Yeast Extract as a component.

StrainATCCGrowth
Escherichia coli25922Luxuriant
Streptococcus pyogenes19615Luxuriant
Staphylococcus aureus25923Luxuriant
Enterococcus faecalis29212Luxuriant
Bacillus subtilis6633Luxuriant
Lactobacillus casei9595Luxuriant

Documents

Technical Data Sheet

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