Explore our core selection of high-solubility, bioactive plant, dairy, animal, and marine-derived protein isolates tailored for food, supplement, and cosmetic formulations.
In the global race for clean, sustainable, and highly bioavailable nitrogen sources, Fish Protein Isolate (FPI) has emerged as a premier bio-functional ingredient. Derived through advanced enzymatic hydrolysis and separation techniques, FPI exhibits an amino acid profile superior to traditional land-based proteins, including whey, soy, and pea proteins. Unlike raw fish meal or lower-grade protein powders, our isolate is engineered to contain over 90% pure protein with almost complete elimination of lipids, carbohydrates, and odoriferous compounds.
Global demand for hypoallergenic, highly soluble marine protein continues to surge across sports nutrition, clinical supplements, and high-end pet food industries. As an experienced B2B manufacturer, Hangzhou Fderla Biology Co., Ltd. addresses this demand by offering custom OEM formulation capabilities, providing global buyers with consistent particle sizes, optimal bulk density, and tailored molecular weight profiles to match precise end-product specifications.
Every batch produced at our Hangzhou facility is tested against stringent global parameters. Below are the core specifications of our export-grade Fish Protein Isolate:
A premier manufacturer and exporter of hydrolyzed proteins and bioactive peptides in Hangzhou, China.
We integrate modern enzymatic hydrolysis technology with scientific formulation expertise to ensure high bioavailability, easy absorption, and stable performance of its protein products. Each batch is carefully tested to meet international standards.
Hangzhou Fderla Biology Co., Ltd. supports OEM and customized solutions for global clients, including ingredient formulation optimization, technical support, and bulk supply services. We help brands launch custom marine peptide lines effortlessly.
Our ingredients, including plant-based, animal-based, and marine-derived protein peptides, are widely used in functional foods, dietary supplements, skincare formulations, hair care products, and sports nutrition solutions.
By combining scientific research, production excellence, and global service capability, Fderla Biology has become a trusted partner in the hydrolyzed protein and bioactive peptide industry, delivering reliable and high-performance ingredient solutions worldwide. We operate state-of-the-art pilot extraction units alongside massive commercial production lines, ensuring smooth scalability from laboratory prototyping to container-load supply chains.
Understanding the enzymatic hydrolysis and multi-membrane filtration protocols that define our quality standards.
Fish protein extraction historically faced limitations due to persistent amine odors and susceptibility to thermal damage. At Hangzhou Fderla Biology, we utilize a patented low-temperature multi-enzyme complex hydrolysis process. By pairing endopeptidases with exopeptidases, we precisely clip peptide bonds at targeted positions, generating high-yield bioactive peptides while keeping the formation of free amino acids (which can impart bitter notes) to a minimum.
Following hydrolysis, the solution undergoes activated carbon filtration and vacuum deodorization. This successfully removes volatile trimethylamine (TMA) and lipids that cause rancidity over time. The remaining liquid is run through sequential ultrafiltration membranes to separate molecules of specific Dalton ranges, ensuring precise molecular weight distribution based on client needs.
| Process Step | Target Parameters | Control Mechanism | Relevance to Quality |
|---|---|---|---|
| Raw Material Sorting | Freshness (Tops freshness index) | Cold chain logistics (0-4°C) | Prevents protein degradation and biogenic amine generation |
| Enzymatic Hydrolysis | Degree of Hydrolysis (DH): 15-20% | Real-time pH, temperature & enzyme dosage controls | Optimizes bioavailability and controls organoleptic properties |
| Membrane Separation | Molecular Cutoff: 1000 - 3000 Da | Multi-stage ultrafiltration system | Concentrates bioactive peptides; removes unhydrolyzed proteins |
| Centrifugal Spray Drying | Moisture content ≤ 5.0% | Inlet temp: 180°C / Outlet temp: 85°C | Preserves molecular structure; ensures instant cold-water solubility |
Adapting marine protein technologies to regional preferences and specific product applications.
In the US and Canada, consumers demand fast-acting post-workout muscle recovery ingredients. Our FPI features a rapid absorption rate with rich BCAA contents, making it an excellent allergen-free alternative to traditional whey protein isolate.
Addressing sarcopenia is a major focus in Western Europe. FPI's high digestibility allows the elderly to absorb key nitrogen blocks with minimal digestive strain, fitting perfectly into medical liquids and nutritional meal replacements.
Markets in Japan, South Korea, and China focus intensely on oral beauty and skin elasticity. High-purity marine peptides under 2000 Daltons act as precursor elements to natural collagen synthesis, finding use in daily beauty shots and creams.
Premium pet brands use our FPI to treat food sensitivities in cats and dogs. Its hydrolyzed state ensures the animal's immune system does not recognize the proteins as allergens, making it highly effective for veterinary kibble.
Operating out of the industrialized biological manufacturing hub of Zhejiang, China, Hangzhou Fderla Biology Co., Ltd. benefits from a robust and mature local ecosystem. China’s supply chain resilience is rooted in localized raw material abundance, advanced engineering skills, and optimized marine port logistics (being close to both Ningbo and Shanghai ports).
We maintain year-round raw material partnerships with deep-sea fishing fleets. This stable raw material supply helps us mitigate wild-catch price fluctuations, giving our B2B customers steady pricing even during challenging economic seasons. Additionally, our automated processing facilities reduce power consumption and production waste, allowing us to pass significant cost savings to our clients.
Our quality control laboratory works directly with international testing agencies like SGS, Eurofins, and Intertek, providing fast verification of heavy metals, pesticide residues, and microbiological parameters prior to export shipping.
Our commitment to transparency, safety, and strict regulatory compliance across global markets.
To support smooth import customs clearance in the United States, European Union, Japan, and the Middle East, our production facilities are certified under major food safety systems. We adhere to rigorous traceability protocols to verify that all raw materials are sustainably harvested.
Strict good manufacturing practices that govern cleanrooms, air handling systems, and product packaging.
Hazard Analysis Critical Control Point system applied to every stage of marine protein processing.
Meeting specific dietary requirements, broadening market access for international consumer brands.
Fully registered facility with completed product notifications for seamless import into the United States.
How we are innovating to meet next-generation requirements in bio-functional peptides.
As the functional food industry shifts toward more personalized and targeted nutrition, protein isolates must do more than just supply amino acids. Hangzhou Fderla Biology Co., Ltd. is focused on developing targeted therapeutic peptides that deliver measurable physiological benefits.
Our R&D roadmap centers on three key technological advancements:
By investing in these bioprocessing technologies, Fderla Biology continues to provide global OEM partners with cutting-edge protein and peptide solutions.
Expert technical answers to common questions about sourcing and formulating with Fish Protein Isolate.
Visual tour of Hangzhou Fderla Biology's production systems, analytical equipment, and processing infrastructure.










We offer a wide selection of plant, animal, and specialty proteins to round out your formulation strategy.