Soy Protein Powder N50
Soy Protein Powder N50 is designed as a consistent and highly dispersible alternative to conventional soybean meal and soy protein isolate for industrial fermentation applications. It is suitable for a broad range of fermentation processes, including microbial cultivation, biopharmaceutical production, probiotic fermentation, and bioremediation. As a sustained source of organic nitrogen and nutrients, Soy Protein Powder N50 supports efficient microbial growth and fermentation performance.
- Category
- Peptones & Protein Hydrolysates
- Pack sizes
- 500 g · 5 kg · 25 kg
- Raw material
- Soy
- Certifications
- ISO 22000 · Halal
Data updated：2026-11-06
- Storage
- Store at 10–30 °C in sealed, dry, clean conditions.
- Shelf life
- 24 months from manufacture date when stored as directed.
- Allergens
- Soy
Overview
Soy Protein Powder N50 is a plant-based fermentation nutrient formulated to support microbial cultivation in animal-origin-free fermentation systems. It supplies peptides, amino acids, nucleotides, and other growth factors required for robust microbial growth.
Soy protein powder or soy peptone
Soy protein powders and isolates are soy protein that has not been extensively hydrolysed: large molecules at low cost, usable only once the organism secretes proteases, which suits protease-producing strains such as Bacillus and large, long industrial fermentations, and they can replace soy milk to avoid batch variation and spoilage. Soy peptone is already hydrolysed to peptides, taken up quickly and clear in solution, for laboratory media and fermentations that need a fast start.
Product highlights
- Food-grade raw materials, produced in an ISO 22000 certified facility
- Halal certified, suitable for the Malaysian, Indonesian, and Middle Eastern markets
- Available in 500 g / 5 kg / 25 kg, from laboratory to industrial scale
- COA, specification sheet, and technical data sheet available; samples on request
- Manufactured in Taiwan with reliable supply
Food grade versus laboratory grade
Most culture media suppliers use laboratory-grade raw materials, which are held to lower standards for heavy metal residues, microbial contamination control, and traceability. That is adequate for pure research but not for applications with stricter raw-material requirements. STBIO manufactures with food-grade raw materials throughout, in a facility certified to ISO 22000 food safety management.
- Food microbiology laboratories working to ISO 17025 or equivalent requirements
- Biotech manufacturers exporting fermentation products and needing full raw-material traceability
- Organisations with ESG or compliance audit requirements across their supply chain
- Companies sourcing both Halal and non-Halal products who need one consistent material grade
Frequently asked questions
01Can it be used for food-grade applications?
Yes. It is made from food-grade raw materials in an ISO 22000 certified facility and is suitable for culturing starters for fermented products that are consumed directly.
02How should it be stored, and what is the shelf life?
Store at 10–30 °C in sealed, dry, clean conditions. 24 months from manufacture date when stored as directed.
03How do I request a bulk quotation, and can you provide a COA?
Yes. This product is available in 500 g, 5 kg, 25 kg. Tell us your application and volume when requesting a quotation; we reply within one working day and can supply the COA, specification sheet, and technical data sheet.
Used in these applications
- Soy milk keeps contaminating your fermenter? Replace it with soy peptone and ISPA stable, sterile, traceable plant nitrogen source in place of in-house soy milk
- Cost-Effective Industrial & Food Fermentation Nutrient SeriesEconomical, nutritionally balanced and consistent nitrogen sources that lower medium costs in large-scale industrial and food fermentation. For food and beverage fermentation, biopesticides, biofertilizers, environmental microorganisms and industrial enzymes.
- Sustained Nitrogen Supply & Secondary Metabolite Production SeriesControlled hydrolysis and peptide molecular-weight distribution provide sustained nitrogen release to support secondary metabolite production. For Streptomyces, actinomycetes, antibiotics and other bioactive compound fermentations.
- High Spore Yield Nutrient SeriesNutrient formulations designed for the growth and sporulation of spore-forming bacteria, improving spore yield, sporulation rate and product quality. For Bacillus subtilis, B. amyloliquefaciens, B. velezensis and other biopesticide and biofertilizer strains.