Protein Hydrolysates Applications｜Advanced Protein Hydrolysates / Cell-Culture Grade Nitrogen Sources
STBIO MEDIA specializes in advanced Protein Hydrolysates derived from plant proteins, yeast, and dairy-based sources. We provide Microfiltered and Ultrafiltered grades of cell-culture nitrogen sources to support a wide range of microbial and mammalian cell systems from research to commercial-scale production.
Our hydrolysates are widely used in cultivated meat and seafood, mammalian cell culture, insect cell culture, monoclonal antibody and recombinant protein (rProtein) production, vaccines, gene therapy, and regenerative medicine. They help maintain high growth, high productivity, and excellent stability under both low-serum and serum-free conditions.
Hydrolysate Grades & Formats（Microfiltered vs Ultrafiltered）
STBIO MEDIA offers protein hydrolysates from various sources, including plant proteins (soy, wheat, pea, rice, fava bean, etc.), yeast-derived materials, and dairy-derived hydrolysates. Depending on purification and filtration levels, they are categorized as:
Microfiltered Hydrolysates
- Suitable for general mammalian cells, insect cells, yeast, and bacterial fermentation.
- Ideal as core nitrogen sources for seed trains, early-stage expansion, and industrial-scale fermentation.
- Excellent cost–performance ratio and balanced nutrient profile; ideal for mid- to large-scale production.
Typical sources: Casein hydrolysates, plant protein hydrolysates (soy/wheat), yeast hydrolysates.
Ultrafiltered Hydrolysates（UF）
- Processed through ultrafiltration to remove large molecules and impurities, providing a more defined peptide molecular-weight distribution.
- Low endotoxin, low ash—ideal for sensitive cell lines and biopharmaceutical applications.
- Especially suited for CHO, HEK, Vero, iPSC, MSC, and other high-value cell lines.
Typical sources: Soy, wheat, pea, rice, and yeast-based UF hydrolysates.
Main Application Areas
1. Mammalian Cell Culture
Applicable Cell Lines: CHO, HEK 293, Vero, MDCK, Hybridoma, MRC-5, BHK, PER.C6, etc.
Protein Hydrolysates are among the most important non-serum nitrogen supplements in mammalian cell culture. They help maintain excellent cell activity and productivity under both low-serum and serum-free conditions.
Key Benefits:
- Increases growth rate and maximum viable cell density (VCD).
- Improves cell viability and culture stability throughout the process.
- Enhances antibody and recombinant protein productivity.
- Supports high-density, perfusion, and continuous culture systems.
Typical Applications: Monoclonal antibody (MAB) production, recombinant proteins (rProtein), protein therapeutics, viral vector production.
2. Stem Cells & Regenerative Medicine
Applicable Cell Types: iPSC, MSC, ASC, NSC, stem-cell–derived cells, immune cells (T cells, NK cells), etc.
The small peptides and amino acids in hydrolysates help mimic a natural microenvironment, providing gentle and stable nutritional support to maintain pluripotency and improve expansion efficiency.
Main Functions:
- Enhances stem-cell viability and adhesion.
- Maintains stem-cell characteristics under reduced-serum or serum-free conditions.
- Supports regenerative medicine, cell therapy, and exosome development.
3. Insect Cell Culture
Applicable Cell Lines: SF9, SF21, High Five (Tni), etc.
Insect cells are highly sensitive to nitrogen-source quality. High-quality plant and yeast hydrolysates significantly enhance protein and virus productivity in baculovirus systems.
Application Advantages:
- Improves infection efficiency and virus titer.
- Enhances cell health and culture stability.
- Boosts recombinant protein yields—ideal for vaccine and subunit protein production.
4. Recombinant Protein Expression（rProtein）
Whether using CHO, HEK, or insect cells, Protein Hydrolysates act as a “productivity amplifier” in upstream bioprocessing.
Key Advantages:
- Accelerates high-density seed-train establishment.
- Improves specific productivity (Qp).
- Stabilizes protein quality and glycosylation profiles, reducing batch variability.
Typical Applications: Cytokines, growth factors, enzymes, fusion proteins, and various recombinant biotherapeutics.
5. Monoclonal Antibody (MAB) Production
For CHO or Hybridoma-based monoclonal antibody production, hydrolysates are critical supplements to enhance yield and reduce cost.
Application Highlights:
- Supports high-density batch, fed-batch, and perfusion processes.
- Increases mAb productivity and helps maintain key quality attributes (CQA).
- Enables gradual serum reduction and formulation optimization for commercial-scale production.
6. Vaccines & Viral Production
Applicable Systems: Vero, MDCK, CHO, HEK, insect cells, etc., for virus amplification and antigen production.
High-quality hydrolysates provide stable and sufficient nitrogen sources for host cells, improving virus production and culture robustness.
- Increases virus titer and production efficiency.
- Improves cell stability during multi-round infection and long-term culture.
- Supports traditional and next-generation vaccines (e.g., recombinant proteins, VLPs).
7. Gene Therapy & Viral Vectors
Applicable Vectors: AAV, Lentivirus, Retrovirus, Adenovirus, HSV, etc.
In suspension HEK293 and similar systems, Protein Hydrolysates improve cell health and infection responsiveness, resulting in higher viral-vector titers and better product consistency.
- Improves transfection efficiency and viral-vector yield.
- Reduces cell death and debris, improving downstream purification.
- Suitable for research, preclinical development, and scalable toward GMP production.
8. Cultivated Meat & Cellular Agriculture
Applicable Cells: Myoblasts, skeletal muscle cells, fibroblasts, adipocytes, satellite cells, etc.
The Food-grade Protein Hydrolysates from STBIO MEDIA are ideal for cultivated meat and cellular agriculture, delivering both high cell-culture performance and food-safety compliance.
Core Advantages:
- Significantly reduces the use of FBS and costly serum components.
- Enhances proliferation and differentiation efficiency.
- Uses Food-grade, Non-GMO, Halal-certified raw materials—optimized for future regulatory approval.
9. Cultivated Seafood
Applicable Cells: Fish muscle & fat cells, crustacean cells, mollusk cells, etc.
Plant- and yeast-derived hydrolysates provide nutrient environments closer to in-vivo marine conditions, helping establish stable long-term culture systems.
- Improves cell adhesion and growth performance.
- Enhances viability and differentiation efficiency.
- Supports the development of species-specific serum-replacement formulations.
Why Choose STBIO MEDIA Protein Hydrolysates?
- Food-grade & Non-GMO: Ideal for cultivated meat, seafood, and food-related bioprocessing.
- Halal-certified: Suitable for Muslim markets and expansion into Southeast Asia & the Middle East.
- HACCP & ISO 22000: Managed under strict food-safety and quality-control systems.
- Microfiltered / Ultrafiltered grades: Suitable for fermentation through advanced biopharmaceutical applications.
- Low endotoxin & strong batch consistency: Optimal for sensitive cell lines, gene therapy, and vaccine production.
- Custom blends available: Tailored hydrolysate combinations based on cell line, culture mode, or production goals.
- Full technical support: From lab-scale optimization to commercial-scale implementation.
Discuss the Best Protein Hydrolysate Solution for Your Application
Whether you are developing cultivated meat, cultivated seafood, monoclonal antibodies, recombinant proteins, vaccines, gene therapy vectors, or regenerative-medicine products, STBIO MEDIA can provide optimized hydrolysate recommendations and sample support.
Contact STBIO MEDIA｜Request Samples & Technical Consultation