Yuxin Bio-Tech manufactures low viscosity soy protein isolate for nutrition bars, high-protein bakery products, meal-replacement foods, and extruded protein ingredients. Our YX3000 Series is developed for food manufacturers that need to increase protein content while controlling the impact of soy protein on mixing, dough handling, extrusion, and finished-product texture.

With at least 90% protein on a dry basis, the YX3000 Series offers low-viscosity functionality, good moisture retention, and compatibility with sugar-containing food formulations. Different grades and customized specifications are available to meet the processing requirements of high-protein foods.

Low Viscosity for Better Processing Compatibility
Adding soy protein isolate to nutrition bars, bakery products, or extruded foods can change the viscosity and handling properties of the formulation. Selecting an appropriate low-viscosity grade helps manufacturers balance protein enrichment with processing requirements.

Controlled Viscosity: Supports formulations where excessive thickening may interfere with mixing, forming, or extrusion.
Improved Ingredient Incorporation: Helps manufacturers select protein grades compatible with their existing mixing systems.
Flexible Processing: Suitable for evaluating different protein concentrations, moisture levels, and processing conditions.
Functional Grade Options: Low and very low viscosity specifications can be supplied according to application requirements.
Viscosity depends on protein concentration, water content, temperature, pH, and measurement conditions. For accurate grade selection, the target viscosity and testing method should be defined before confirming a technical specification.

Moisture Retention & Texture Control
The YX3000 Series provides moisture-retention functionality for nutrition bars, baked goods, and other protein-enriched foods. Moisture management is particularly important in formulations containing high levels of protein, sugars, syrups, or dietary fibers.

Nutrition Bars: Supports moisture management and formulation consistency during mixing and forming.
High-Protein Bakery: Provides protein enrichment while allowing manufacturers to evaluate dough handling and finished-product texture.
Meal-Replacement Foods: Offers functional protein options for formulations requiring controlled viscosity and moisture balance.
Extruded Protein Products: Suitable for evaluating protein functionality under different extrusion and moisture conditions.
Final texture and moisture retention depend on the complete formulation, processing method, and storage conditions. Product suitability should be confirmed through application trials.

Sugar & Syrup System Compatibility
Nutrition bars and meal-replacement products often contain syrups, sugars, fibers, and other binding ingredients. The interaction between soy protein isolate and these components can influence mixing resistance, dough consistency, product firmness, and moisture distribution.

YX3000 low viscosity soy protein isolate can be evaluated in sugar-containing formulations to help manufacturers select a suitable balance between protein content, processing behavior, and finished-product texture.

Syrup-Based Formulations: Evaluate compatibility with glucose syrup, fiber syrup, glycerol, and other binding ingredients.
Mixing Performance: Select suitable viscosity and dispersibility characteristics for the intended process.
Moisture Balance: Match protein functionality with the formulation's water and humectant system.
Texture Requirements: Define the desired firmness, chewiness, and handling properties.

Standard YX3000 Product Specifications
Our published YX3000 specifications provide a foundation for technical evaluation and bulk ingredient purchasing.

Protein Content (Dry Basis): ≥90.0%
Moisture: ≤7.0%
Ash Content (Dry Basis): ≤6.5%
Fat Content: ≤1.0%
Appearance: Light yellow or milky white powder
Viscosity Type: Low viscosity
Microbiological Specification: Total bacterial count evaluated according to the published sampling acceptance criteria of n=5, c=2, m=5,000, and M=20,000 CFU/g.
The applicable physical, chemical, and microbiological test methods are identified in the product specification. Additional functional parameters are confirmed according to the selected YX3000 grade.

Optional Low Viscosity SPI Grades
In addition to the published YX3000 standard specifications, Yuxin can provide alternative physical and functional grades for customers with specific processing requirements.

Viscosity: Low-viscosity and very-low-viscosity grades.
Moisture: Lower-moisture options targeting ≤5.0–6.0%.
Ash: Lower-ash options targeting ≤6.0%.
Fat: Lower-fat options targeting ≤0.5%.
Particle Size: Specifications targeting ≥95% or ≥98% passing 100 mesh.
pH: Grade-specific ranges such as 6.5–7.5, with defined measurement conditions.
Dispersibility: Readily dispersible grades for different mixing requirements.
Solubility: Functional grades selected according to target solubility and NSI requirements.
Moisture Retention: Different functional options for bakery and nutrition bar formulations.
Optional specifications are available as different technical grades and should not be interpreted as identical properties across every YX3000 product. The final grade and acceptance limits are established according to the intended application.

Custom Soy Protein Isolate for Nutrition Bars & Extrusion
Yuxin supports customized low viscosity soy protein isolate specifications for food manufacturers requiring application-specific functionality.

Our customization capabilities include:

Target Viscosity: Specific viscosity requirements under agreed protein concentration, temperature, pH, and measurement conditions.
Particle Size: Powder fineness and sieve-passing requirements for mixing and extrusion.
Moisture Retention: Functional targets for bars, baked products, and other protein-enriched formulations.
Sugar & Syrup Compatibility: Protein selection according to the syrup system, moisture content, and mixing process.
Solubility & Dispersibility: Application-specific powder incorporation and hydration requirements.
Physical Specifications: Customized moisture, ash, fat, and other relevant limits.
Extrusion Compatibility: Functional targets based on feed moisture, barrel temperature, screw configuration, and desired product structure.
Texture: Desired firmness, chewiness, and moisture-related characteristics in the finished food.
Packaging: Customized bag weight, packaging materials, labeling, and bulk shipment requirements.
Custom extrusion and texture targets are evaluated under agreed processing conditions. Changes in screw torque, expansion, product hardness, or storage stability should be verified using the customer's formulation and equipment rather than assumed from general protein specifications.

Manufacturing & Functional Protein Supply
Yuxin Bio-Tech specializes in soybean protein ingredients and offers seven soy protein isolate series with more than 60 specialized varieties. Our functional product portfolio supports different food processing applications and customized ingredient requirements.

The YX3000 Series focuses on low-viscosity performance for nutrition bars, bakery products, meal-replacement foods, and extruded protein ingredients. For manufacturers requiring emulsification and gel-forming performance, our YX2000 Emulsion & Gel Soy Protein Isolate Series offers a different functional product range.

We help food manufacturers compare available functional grades and discuss product specifications according to their formulation and production requirements. Manufacturing & Functional Protein Supply
Yuxin Bio-Tech specializes in soybean protein ingredients and offers seven soy protein isolate series with more than 60 specialized varieties. Our functional product portfolio supports different food processing applications and customized ingredient requirements.

The YX3000 Series focuses on low-viscosity performance for nutrition bars, bakery products, meal-replacement foods, and extruded protein ingredients. For manufacturers requiring emulsification and gel-forming performance, our YX2000 Emulsion & Gel Soy Protein Isolate Series offers a different functional product range.

We help food manufacturers compare available functional grades and discuss product specifications according to their formulation and production requirements.

Low Viscosity Soy Protein Isolate Applications
Yuxin YX3000 low viscosity soy protein isolate is designed for protein-enriched foods where ingredient functionality must be balanced with processing performance. Typical applications include nutrition bars, high-protein baked goods, meal-replacement products, and extruded protein granules.

Different product grades can be selected according to protein content, viscosity requirements, moisture management, mixing conditions, and desired finished-product texture.

Choose the Right Grade for Your Application
Nutrition Bars & Protein Bars
Nutrition bar production requires a suitable balance between protein concentration, syrup compatibility, moisture content, and dough consistency. Excessive viscosity or poor ingredient incorporation may make mixing and forming more difficult.

Recommended Properties: Low viscosity, suitable moisture retention, and good formulation compatibility.
Processing Priorities: Mixing, binding, forming, and finished-product texture.
Selection Information: Protein percentage, syrup composition, moisture content, and desired bar firmness.
High-Protein Bakery Products
Adding soy protein isolate to baked goods can increase protein content while changing dough handling, moisture distribution, and final texture. Low viscosity grades can be evaluated when manufacturers need to limit the impact of protein enrichment on their existing baking process.

Recommended Properties: Low viscosity, moisture retention, and suitable powder incorporation.
Processing Priorities: Dough consistency, mixing behavior, moisture balance, and baked texture.
Selection Information: Flour system, protein dosage, hydration level, mixing process, and baking temperature.
Meal-Replacement Nutrition Products
Meal-replacement bars and high-satiety foods often contain multiple protein sources, dietary fibers, syrups, and other nutritional ingredients. Selecting a suitable soy protein isolate helps manufacturers achieve their protein targets while managing processing and texture requirements.

Recommended Properties: Protein ≥90% on a dry basis, controlled viscosity, and moisture-retention functionality.
Processing Priorities: Ingredient compatibility, product firmness, mixing, and forming.
Selection Information: Nutritional targets, protein blend, binder system, and expected storage conditions.
Extruded Protein Nuggets & Crisps
Low viscosity soy protein isolate can be evaluated in extruded protein granules, nuggets, and crisps where protein functionality affects material flow and finished-product structure.

Recommended Properties: Appropriate viscosity, dispersibility, and extrusion compatibility.
Processing Priorities: Feed consistency, extrusion behavior, expansion, and product texture.
Selection Information: Extruder type, feed moisture, screw speed, barrel temperature, and desired product density.
Extrusion performance depends on the complete formulation and equipment conditions. We recommend testing the selected YX3000 grade under the intended processing parameters before approving bulk production.

How to Select the Right Low Viscosity Grade
Before choosing a soy protein isolate for bars, bakery products, or extrusion, buyers should identify the performance requirements of their existing formulation.

Protein Concentration: Confirm the desired protein content and the amount of soy protein isolate added to the formulation.
Viscosity: Specify the required viscosity and measurement conditions.
Moisture Level: Consider the water content of the formulation and its effect on mixing, forming, and texture.
Syrup System: Identify the sugars, fiber syrups, glycerol, and other binding ingredients used.
Particle Size: Select suitable powder fineness for the mixing or extrusion system.
Processing Temperature: Consider heating and extrusion conditions that may affect protein functionality.
Finished Texture: Define requirements for firmness, chewiness, expansion, or crispness.
Application Testing & Product Evaluation
When evaluating a new low viscosity soy protein isolate grade, laboratory and production trials should reflect the intended formulation and processing conditions.

Nutrition Bars: Evaluate mixing behavior, forming performance, product firmness, and changes in texture during storage.
Bakery: Evaluate dough handling, moisture retention, baked structure, and sensory properties.
Extruded Products: Evaluate material flow, processing behavior, expansion, density, and finished texture.
Protein Blends: Evaluate compatibility with other proteins, fibers, syrups, and functional ingredients.
For customers replacing an existing protein ingredient, please provide the current product specification and the processing or texture problems you want to address. This information can help us discuss a suitable YX3000 grade.

Quality Specifications & Technical Documents
Food manufacturers should confirm the current technical specification and applicable quality documentation before approving a soy protein isolate grade for production.

Technical Data Sheet (TDS): Confirm protein, moisture, ash, fat, particle size, and relevant functional parameters.
Certificate of Analysis (COA): Confirm the availability of applicable batch results and acceptance criteria.
Microbiological Requirements: Review the relevant sampling plan, test methods, and acceptance limits.
Functional Testing: Agree on methods for viscosity, solubility, moisture retention, or other performance requirements where applicable.
Food Safety Documentation: Verify the documents required for the selected grade and destination market.
Allergen Information: Confirm soy allergen labeling requirements for the finished product.
Certification validity and product coverage should be confirmed using the applicable current documents. Certifications are not assumed to apply to every YX3000 grade.

Packaging, Samples, MOQ & Bulk Ordering
Yuxin supports standard and customized soy protein isolate purchasing requirements for industrial food manufacturers. Order arrangements are discussed according to the selected grade, specifications, packaging, and required quantity.

Samples: Discuss the grade and sample quantity required for formulation evaluation.
MOQ: Purchasing quantities can be discussed according to product specifications and order requirements.
Packaging: Standard or customized bag weights, packaging materials, and labeling requirements can be discussed.
Lead Time: Confirmed according to product availability, manufacturing requirements, and order volume.
Custom Grades: Provide the target technical specification and intended application for evaluation.
Bulk Supply: Include estimated monthly or annual consumption and delivery destination when requesting pricing.
Frequently Asked Questions
Why use low viscosity soy protein isolate in nutrition bars?
Low viscosity soy protein isolate can help manufacturers increase protein content while managing the effects of protein addition on mixing and forming. The appropriate grade depends on the syrup system, moisture content, protein dosage, and desired bar texture.

Can YX3000 be used in high-protein bakery formulations?
Yes. YX3000 is intended for applications including high-protein baked goods. We recommend selecting the grade according to the flour system, protein dosage, hydration level, mixing process, and finished-product texture requirements.

Is YX3000 suitable for extruded protein nuggets and crisps?
Yes. The YX3000 Series is suitable for evaluating high-protein extruded products. Extrusion performance depends on the formulation, feed moisture, temperature, screw configuration, and desired product structure. These conditions should be considered during grade selection.

Can you provide very low viscosity soy protein isolate?
Yes. Low and very low viscosity specifications can be discussed according to the intended application. Please provide the target viscosity, protein concentration, temperature, and measurement method so we can match the appropriate functional grade.

Can particle size, moisture, ash, and fat content be customized?
Yes. Yuxin can provide different physical specifications, including lower moisture, ash, and fat targets, as well as customized particle size requirements. Final specifications are confirmed according to the selected grade and production requirements.

Can low viscosity soy protein isolate prevent nutrition bars from hardening during storage?
Bar hardening depends on the complete formulation, including protein sources, syrups, water activity, humectants, packaging, and storage conditions. Low viscosity and moisture-retention properties can be considered during grade selection, but final storage performance should be verified through product trials.

How should we evaluate soy protein isolate for extrusion?
Evaluate the protein under your actual extrusion conditions, including feed moisture, barrel temperature, screw speed, and formulation composition. Important results may include processing behavior, expansion, product density, and final texture.

What information is needed to request a sample or quotation?
Please provide your intended application, required protein specification, viscosity target, formulation details, estimated purchasing quantity, packaging preference, and delivery destination. If you are replacing another protein ingredient, its existing specification can help us discuss a suitable alternative.

Request Low Viscosity Soy Protein Isolate Specifications & Bulk Pricing
Looking for a low viscosity soy protein isolate manufacturer for nutrition bars, high-protein bakery products, meal-replacement foods, or extruded protein ingredients? Yuxin Bio-Tech supplies functional soy protein grades with standard and customized specifications for different food processing requirements.

Send us your target protein content, viscosity requirements, product application, processing conditions, estimated purchasing volume, and packaging preferences.