Product Description
When sourcing premium plant protein raw materials, our core offering is hydrolyzed soy protein. Many B2B formulators and brand partners often ask what is hydrolysed soy protein, and our flagship Hydrolyzed Soy Protein Isolate, also known as high-grade soybean hydrolysate, stands as an advanced-generation soy protein tailored for outstanding functionality and bioavailability. We select high-quality non-GMO soy isolate as the base material and adopt controlled enzymatic hydrolysis technology to split bulky protein macromolecules into tiny peptides and free amino acids; unlike ordinary intact soy protein that requires secondary decomposition in the human body, this targeted enzymatic cleavage eliminates extra digestion steps and accelerates nutrient absorption significantly. Meanwhile, the process breaks down large allergenic protein fragments, greatly reducing allergenicity and making the material ideal for special dietary formulas and products for people with sensitive stomachs. The finished soybean hydrolysate boasts ultra-high purity and supreme digestibility, featuring a mild neutral taste with barely any bitter aftertaste, which effectively cuts down flavor-masking costs. It maintains perfect transparency under acidic environments, which makes it perfectly suited for clear ready-to-drink (RTD) beverage formulas. Developed for sports performance nutrition and clinical nutritional applications, our hydrolyzed soy protein isolate delivers fast nitrogen supply to facilitate muscle protein synthesis. It is the optimal raw material for developing nutritional products targeted at consumers with fragile digestion or special dietary restrictions.


Key Characteristics
High Solubility & Stability
Excellent solubility across a wide pH range (2.0-10.0) and heat stability, preventing precipitation in clear drinks and processed foods.
01
Rapid Absorption
Predigested peptides facilitate faster absorption and utilization compared to intact proteins.
02
Low Allergenicity
Enzymatic hydrolysis reduces the immunoreactivity of major soy allergens.
03
Neutral Taste & Low Bitterness
Advanced process control minimizes the formation of bitter peptides, ensuring a clean taste profile.
04
High Protein Efficiency Ratio (PER)
Provides a complete amino acid profile rich in essential amino acids, including Branched-Chain Amino Acids (BCAAs).
05
Available Grades
1.Standard Hydrolysate (DH 10-20%): Balanced profile for general nutrition and functional foods.
2.High-DH Hydrolysate (DH 20-30%): For maximum solubility in acidic beverages and rapid absorption.
3.Low-Bitterness Hydrolysate: Specially processed for taste-sensitive applications like clear drinks.
4.Custom Molecular Weight Profiles: Tailored peptide distributions for specific physiological or functional targets.
COA (Certificate of Analysis)
|
Test Item |
Specification |
Test Result |
Test Method |
|
Appearance |
Fine white to creamy white powder |
Conforms |
Visual Inspection |
|
Protein (Dry Basis) |
≥ 90.0% |
92.5% |
Kjeldahl (N x 6.25) |
|
Moisture |
≤ 6.0% |
4.8% |
Karl Fischer Method |
|
Ash |
≤ 6.0% |
5.1% |
Gravimetric Method |
|
Degree of Hydrolysis (DH) |
15% (or as specified) |
16.2% |
pH-stat / TNBS Method |
|
Fat |
≤ 1.0% |
0.7% |
Soxhlet Extraction |
|
Total Plate Count |
≤ 10,000 cfu/g |
2,500 cfu/g |
ISO 4833-1 |
|
E. Coli |
Negative in 10g |
Negative |
ISO 16649-2 |
|
Salmonella |
Negative in 25g |
Negative |
ISO 6579-1 |
|
Heavy Metals (Pb) |
≤ 0.5 mg/kg |
<0.2 mg/kg |
ICP-MS |

The production involves a refined enzymatic process: Premium Non-GMO Soybeans → Defatting → Alkaline Extraction & Isoelectric Precipitation (to produce Soy Protein Isolate) → Enzymatic Hydrolysis (using specific food-grade proteases under controlled pH, temperature, and time) → Enzyme Inactivation (heat treatment) → Filtration & Ultrafiltration (to remove undesired fractions and adjust molecular weight) → Spray Drying → Sieving & Blending → Packaging.
Product Benefits & Functional Properties
Nutritional Advantages
Our Hydrolyzed Soy Protein Isolate contains a full spectrum of essential amino acids. It effectively supports muscle recovery and delivers long-lasting satiety, ideal for weight management formulas and greatly boosting the core nutritional value of your finished goods.
Processing Functional Advantages
Our proprietary enzymatic hydrolysis technology endows the material with excellent emulsifying and foaming performance. It optimizes the texture of beverages and meal replacements to create a smooth, delicate mouthfeel, strengthening the market competitiveness of your products.
Hypoallergenic Advantages
Our controlled targeted enzyme cleavage breaks down allergenic macromolecular fragments, drastically reducing allergenicity. Suitable for consumers sensitive to intact soy protein, helping you expand your target customer base.
Rapid Absorption Advantages
Precisely split into small peptides and free amino acids, it absorbs far faster than ordinary soy protein and replenishes amino acids rapidly, making it a top-choice raw material for pre-workout energy and post-workout recovery supplements.

Product Applications
Sports & Performance Nutrition
Protein powders, ready-to-drink (RTD) shakes, clear protein beverages, recovery drinks, and protein bars.
Clinical & Medical Nutrition
Enteral formulas, dietary supplements for the elderly, and hypoallergenic nutritional products.
Functional Foods & Beverages
Acidic clear protein drinks, fortified juices, healthy snacks, soups, sauces, and meal replacements.
Infant & Senior Nutrition
Formulated products where high digestibility and nutrient absorption are critical.
Why Choose Our Hydrolyzed Soy Protein Isolate?
Company Strength:
Equipped with advanced hydrolysis production lines and rigorous whole-process quality control, LANDNUTRA masters mature enzyme engineering technology to customize hydrolysis degree and peptide composition as your formula requires. We supply OEM hydrolyzed soy protein isolate and offer professional beverage formula technical service to cover various production needs. Supported by standardized GMP workshops and organic certifications, our professional team works closely with clients to customize formulas, solve market compliance issues and help realize your organic product development plans.
Product Advantage:
We guarantee consistent quality, batch-to-batch reproducibility, and a supply chain backed by full traceability from non-GMO soybeans. Our technical team provides comprehensive application support, from formulation advice to stability testing.Feel free to contact us for samples, technical support and competitive quotations.
Email: wangjing@landnutra.com
WhatsApp: +86 18092657549


Certifications & Compliance
We ensure compliance with international standards:
ISO 22000 Food Safety Management System
HACCP Certified Production
Halal & Kosher Certificates
Non-GMO Documentation / Certification Available
Allergen Control & Testing

FAQ
Q: What core distinctions exist between soy protein isolate and hydrolyzed soy protein isolate?
A:Soy protein isolate consists of complete high-purity protein macromolecules. Hydrolyzed soy protein isolate undergoes enzymatic hydrolysis to break proteins into small peptides, featuring superior absorption speed, excellent solubility even under acidic conditions and lower allergenicity for formulation development.
Q: Is this product suitable for clear beverage applications?
A: Absolutely. Our hydrolysate, especially higher DH grades, is designed to remain soluble and clear in low-pH environments, making it perfect for transparent protein drinks and juices.
Q: Does hydrolysis affect the amino acid profile?
A: No. The enzymatic process breaks the protein bonds but does not destroy the amino acids. The complete and balanced amino acid profile of soy is preserved.
Q: What is the typical lead time?
A: Standard grades are typically available within 10-15 working days. Customized DH or flavor-masked grades may require additional time for production and testing.
Q: Can you provide samples?
A: Yes, we offer product samples for qualified companies. Please contact us with your specific application requirements.
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