Premium Plant Protein Ingredients
Explore our flagship portfolio of highly functional, clean-label plant protein concentrates, isolates, and specialty nutritional fibers tailored for industrial application.
The Science & Market Evolution of Fiber-Rich Plant Protein
Why the intersection of dietary fiber and vegetable protein is redefining the formulation guidelines of global food R&D teams.
The Gut-Muscle Axis: Synergy of Macro and Micro-Nutrients
Modern consumers no longer evaluate protein supplements solely by crude protein content. The integration of dietary fiber and plant protein concentrates targets the gut-muscle axis, addressing digestibility while supporting muscle synthesis. By preserving naturally occurring prebiotic fibers or enriching isolates with high-quality starches, food formulators achieve clean-label wellness solutions that prevent gastrointestinal discomfort frequently associated with heavy dairy proteins.
Solubility, Texture, and Emulsification Challenges
Sourcing plant-based proteins presents unique physical constraints: hydrophobic plant proteins tend to clump, yield sandy mouthfeel, and separate under heat processing. Dongguan Tsrel Biology implements mechanical wet milling, enzymatically controlled hydrolysis, and multi-stage spray drying. These processes preserve the protein's native functional properties while keeping beneficial dietary fibers suspended, resulting in superior emulsion stability and mouthfeel in ready-to-drink (RTD) beverages and dairy alternatives.
Unrivaled Chinese Supply Chain Infrastructure
Discover how raw material integration, location, scale economies, and cutting-edge processing facilities drive global efficiency.
Agile Processing & Custom Meshes
Operating out of Dongguan, China’s industrial manufacturing capital, our facility leverages high-speed automated milling and extraction loops. We customize mesh sizes from fine powders for clear beverages to textured proteins for meat analogs, adjusting the fiber-to-protein ratio according to specific application profiles.
Direct Sourcing & Farm-to-Port Control
We source raw non-GMO raw materials—including peas, potatoes, brown rice, fava beans, and pumpkin seeds—from contracted local cooperatives. The vertical integration of domestic farming routes with major global marine shipping lines out of Guangzhou and Shenzhen guarantees constant feedstock flow and competitive container costs.
Strict Heavy Metal & Pesticide Control
To meet demanding European and North American regulations, our supply chain incorporates inline metal detection, continuous magnetic separation, and batch ICP-MS testing to verify compliance with strict heavy metal limits (Pb, As, Cd, Hg) and agricultural chemical standards.
Technical Specification & Functional Applications Directory
Review the chemical structures, functional parameters, and target application fields of our core plant protein inventory.
| Protein Source | Protein content (Dry Basis) | Dietary Fiber Content | Key Functional Attribute | Recommended Applications |
|---|---|---|---|---|
| Textured Pea Isolate | ≥ 80% - 85% | ~ 3% - 5% | Excellent gelling, water binding | Meat alternatives, meat extension, textured snacks |
| Potato Protein / Fiber Blend | ≥ 65% - 75% | ≥ 15% (Customizable) | Hypoallergenic, high foaming capacity | Gluten-free baking, egg replacement, clinical nutrition |
| Brown Rice Protein | ≥ 80% | ~ 4% - 6% | Complete amino acid profile (with Lysine blending) | Infant formulas, hypoallergenic diet, sports shakes |
| Fava Bean Isolate | ≥ 85% | ~ 2% | Neutral taste profile, cold solubility | UHT plant milk, dairy-free yogurts, frozen desserts |
| Chickpea Protein (Aquafaba) | ≥ 60% | ~ 8% | Superb emulsification and whip-ability | Vegan condiments, dressings, confectionery meringues |
Global Enterprise Procurement, Compliance & Regional Support
Overcoming non-tariff trade barriers, optimizing clearing times, and ensuring regulatory compliance across major jurisdictions.
Regulatory Alignment: FDA, EFSA, and GB Standards
For food ingredients, market compliance is non-negotiable. Our manufacturing processes strictly adhere to GMP standards and hold certifications including ISO 22000, HACCP, Halal, Kosher, and USDA Organic. We provide complete technical dossiers including allergen statements, BSE/TSE-free certificates, and non-GMO assurances, enabling smooth product registration and custom clearances in North America, Europe, and the Middle East.
B2B Logistics & Local Warehousing Integration
We understand that supply chain resilience requires more than just high factory output. Dongguan Tsrel Biology coordinates with international freight forwarders to manage mixed-consignment sea freight, air-express sample programs, and DDP/CIF delivery modes. To support JIT (Just-in-Time) manufacturing programs, we partner with regional distributor networks to maintain buffer stocks in key destination hubs, mitigating unexpected shipping disruptions.
Expert Q&A: Addressing Plant Protein Sourcing Concerns
Technical guidance from our R&D lab on formulation, solubility, trace contaminants, and supply reliability.
How does Dongguan Tsrel Biology manage off-notes and bitterness in fava bean and pea proteins?
Plant protein off-notes (earthy, beany notes) are primarily caused by volatile aldehydes, ketones, and lipid oxidation catalyzed by lipoxygenase. We implement low-temperature wet-milling, heat inactivation of enzymes, and food-grade adsorption/extraction techniques. This process removes lipoxygenase and volatile off-compounds without denaturing the plant protein structure, producing a clean taste profile that reduces the need for masking agents in final formulations.
Can you customize the dietary fiber and starch ratios for potato and chickpea proteins?
Yes. Our extraction facility features precise centrifugal separators and fine-mesh air classifiers. We can adjust starch, insoluble fiber, and protein concentrations to meet your requirements. For baking applications requiring high water retention, we can adjust the fiber fraction up to 20%, whereas for low-viscosity RTD beverage formulas, we minimize fiber levels to under 1% to prevent sedimentation.
What is your protocol for allergen cross-contamination management during production?
Our facility features dedicated processing loops for soy-free and gluten-free lines. We run strict Clean-In-Place (CIP) programs utilizing validated sanitizing cycles. Swab tests and ELISA assays are performed on batch-changeovers to verify there is zero cross-contamination of major allergens (soy, wheat, dairy). Every export shipment is accompanied by a certificate of analysis confirming compliance with target allergen thresholds.
How does potato protein compare to egg whites in vegan baking applications?
Potato protein features a balanced ratio of patatin and protease inhibitors, showing functional properties similar to egg white albumin. When hydrated, it forms stable, heat-coagulable foams with high elasticity. In gluten-free or vegan baking, it replicates the structural properties of egg whites, providing excellent volume, crumb structure, and moisture retention in cakes, macarons, and artisanal breads.
What are the lead times for custom formulations and bulk container shipments?
For standard ingredient powders, lead times range from 7 to 15 days from order confirmation to port delivery. For custom formulation requests (custom particle size, enzymatic hydrolysis degree, or specialized blends), development, lab analysis, and pilot batching takes between 21 and 30 days. Shipping times depend on the destination port, taking approximately 14 days to West Coast North America and 28-35 days to European base ports.
About Dongguan Tsrel Biology Co., Ltd.
A reliable leader in botanical extraction, plant-based nutrition research, and global ingredient distribution.
Dongguan Tsrel Biology Co., Ltd. is a professional China vegetal protein manufacturer specializing in the research, development, production, and supply of high-quality plant protein ingredients for food, beverage, and nutritional applications. With a strong focus on innovation, sustainability, and quality assurance, the company is dedicated to providing reliable plant-based ingredient solutions to customers worldwide.
Equipped with advanced manufacturing facilities and modern processing technologies, Dongguan Tsrel Biology offers a comprehensive range of vegetal proteins, including soy protein, pea protein, rice protein, wheat protein, and other specialty plant proteins. These ingredients are widely used in functional foods, nutritional supplements, sports nutrition products, dairy alternatives, meat alternatives, beverages, bakery products, and health food applications.
Innovation is a key driving force behind the company's growth. Supported by an experienced research and development team, Dongguan Tsrel Biology continuously explores new technologies and application solutions to meet the evolving demands of the global food and nutrition industries. The company also provides customized ingredient solutions to help customers optimize product formulations, improve nutritional profiles, enhance texture, and create clean-label products.
Quality and food safety are integrated into every stage of production. From raw material sourcing and processing to final testing and packaging, strict quality control procedures are implemented to ensure product consistency, purity, safety, and compliance with international standards. This commitment enables the company to deliver dependable products that meet the rigorous requirements of global customers.
Specialty Plant Proteins & Seeds Portfolio
Complete your sourcing matrix with our functional seed proteins, plant peptides, and clean-label nutritional enhancers.
Production Facility & Research Center Showcase
A transparent view of our modern manufacturing plants, physical-chemical laboratories, and storage facilities in Dongguan.
