China Yeast Extract Powder | High-Purity Nitrogen Source Supplier & Factory for Fermentation Culture Media

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Yeast extract powder, a premium product from China, is a fine, light yellow powder meticulously sourced from fresh beer yeast and baker's yeast. This high-quality extract is manufactured by leading suppliers using modern biotechnology methods, which include controlled autolysis or enzymatic hydrolysis to effectively dismantle yeast cell structures. Following systematic separation, purification, and concentration, the product is then treated with advanced spray drying techniques to ensure a stable texture and remarkable purity. Rich in a balanced array of nutrients, the yeast extract contains free amino acids, small molecular peptides, and essential water-soluble vitamins, along with carbohydrates such as oligosaccharides and trehalose. With its excellent solubility and outstanding nutritional activity, this yeast extract powder offers abundant nitrogen sources, growth factors, and trace elements. It is widely utilized in preparing microbial culture media and plays a vital role in biological fermentation, biopharmaceuticals, and the food industry. As a result, it effectively enhances microbial proliferation and metabolism, making it an essential ingredient in both industrial production and laboratory research, supplied directly from our state-of-the-art factory in China.

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Product Description

Product Standards

Sensory Index

Items Requirements
Morphology Powder
Color Light yellow or brown powder
Odor Endemic taste and odor of product, no other peculiar smell
Impurity No normal visible extraneous impurity

Physicochemical Index

Item Industrial Grade Pharmaceutical Grade Reagent Grade
Total nitrogen (on DM) % ≥7.5% ≥8.0% ≥8.0%
Amino nitrogen (on DM) % ≥2.5% ≥3.0% ≥3.5%
Ash (on DM) % ≤15.0% ≤15.0% ≤15.0%
Moisture % ≤6.0% ≤6.0% ≤6.0%
PH (2% solution) 4.5–7.5
Acid solution & alkalescence high-pressure —— Pellucid
Solubility (2% solution) Slightly soluble Complete lysis
Note: The physicochemical index is general specification but we can customize product according to the requirements of customer.

Application

Yeast extract enjoys extensive application across multiple industrial fermentation fields. It is widely adopted in the production of innovative biomedicines, amino acids, vitamins and organic acids, as well as enzyme preparations and probiotic fermentation processes. Besides, it also serves as a key nutrient raw material for manufacturing biological preservatives, bio-pesticides and microecological products, acting as an essential nutritional supplement to support microbial growth in various biomanufacturing workflows.
📋 Usage

Fully dissolved and sterilized before use.

📦 Packaging

Compound Paper Bag with 25kg/bag or Cardboard Bucket. Reagent-grade products are packaged with 250g plastic bottle (or be packed according to the measurement requirements of customer and OEM Package as well).

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Frequently Asked Questions

  • Q What grades of yeast extract are available?
    Yeast extract is available in three grades: Industrial Grade, Pharmaceutical Grade, and Reagent Grade. Each grade differs primarily in total nitrogen content, amino nitrogen content, and solubility characteristics to suit different application requirements.
  • Q Can the product specifications be customized?
    Yes. While the physicochemical index represents general specifications, products can be fully customized according to customer requirements. OEM packaging is also available upon request.
  • Q How should yeast extract be prepared before use?
    Yeast extract should be fully dissolved in water and sterilized prior to use. This ensures proper nutrient availability and prevents contamination in fermentation or biomanufacturing processes.
  • Q What are the main application fields for yeast extract?
    Yeast extract is widely used in industrial fermentation, including the production of biomedicines, amino acids, vitamins, organic acids, enzyme preparations, probiotic fermentation, biological preservatives, bio-pesticides, and microecological products.
  • Q What packaging options are available?
    Standard packaging includes Compound Paper Bags at 25kg per bag or Cardboard Buckets. Reagent-grade products are packaged in 250g plastic bottles. Custom packaging sizes and OEM packaging are also available based on customer needs.
  • Q What is the moisture and pH requirement for yeast extract?
    The moisture content must not exceed 6.0% across all grades. The pH of a 2% solution should fall within the range of 4.5 to 7.5, ensuring product stability and compatibility with various fermentation media.

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