Description
COA-BACKED PLANT PROTEIN
Soy Protein Isolate for Plant-Based Formulation
Soy Protein Isolate is supplied for B2B plant-based nutrition, beverage and food projects. Specification is defined by protein content on a dry basis, process route and the physical parameters that control dispersion in your formulation.
COA-Backed Specification
| Identity | Glycine max seed protein |
|---|---|
| Plant part | Seed |
| Form and colour | Fine off-white to cream powder |
| Assay | 90.0% on dry basis |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0%; result 4.80% |
| Ash | <=5.0%; result 3.60% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXDD260610 |
| Manufacture date | 10 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Plant proteins are specified by protein content basis (as-is or dry basis), process route (isolate, concentrate or flour), particle size and dispersibility. Confirm all four before comparing quotations from different suppliers.
- Confirm whether protein is declared as-is or on a dry basis
- Check the process route: flour, concentrate or isolate
- Review dispersibility, flavour and off-note profile
- Confirm allergen declarations for your destination market
How This Grade Differs
Soy Protein Isolate differs from other plant protein sources in amino acid profile, flavour and functional behaviour, and from the isolate or concentrate form of the same raw material. Compare on protein basis and process route rather than on the ingredient name alone.
Compare these related grades before approval:
For a substitution review, compare botanical identity, plant part, assay target, analytical method, physical form and the current offered-batch COA.
Application Areas
- Plant-based protein beverages and shakes
- Protein bars and bakery applications
- Meat analogue and dairy alternative projects
- Private-label plant-based products
Packaging and Delivery
- Evaluation sample typically 10-20 g, subject to stock
- Regular MOQ typically 1 kg
- 1 kg foil bag or 25 kg fibre drum with inner food-grade liner
- Custom packing and private-label options subject to confirmation
- Typical lead time 7-15 working days after deposit
Quality and Documentation
Representative batch LXDD260610 supports the specification table above. Use the cited record for preliminary comparison and request the offered-lot COA for final technical approval. Batch COA, specification sheet, agreed third-party testing and export documents are available for buyer verification.
Frequently Asked Questions
What specification defines Soy Protein Isolate 90%?
For Soy Protein Isolate 90%: 90.0% on dry basis, tested by HPLC.
Which identity details must remain consistent?
For Soy Protein Isolate 90%: match Glycine max seed protein and plant part Seed across the quotation, specification and offered-batch COA. The offered grade is 90.0% on dry basis.
How is batch-specific approval completed?
For Soy Protein Isolate 90%: the page cites representative batch LXDD260610. Final approval requires the current lot’s identity, specification results and relevant dates.
What forms part of the technical review?
For Soy Protein Isolate 90%: do not assess 90.0% on dry basis in isolation; particle size, moisture or drying data and market-relevant safety limits can also affect acceptance.
Are you a manufacturer or a trading company?
LongBio is Shaanxi Longsheng Biotechnology Co., Ltd., a direct manufacturer of botanical extracts and functional ingredients integrating R&D, production and export support. Factory review can be arranged by video or an on-site visit.
Can I request the current batch COA before ordering?
Yes. Request the applicable current or representative COA and compare product identity, method, limits and results before approving a purchase order.
What is the minimum order quantity?
The regular MOQ is typically 1 kg. An evaluation sample of 10-20 g can usually be arranged before a formal order, subject to stock.
Do you support custom specifications or packing?
Alternative assay targets, particle size, packing and private-label requirements can be reviewed case by case, subject to production feasibility and a revised written specification.
Request COA, Sample or Quotation
Send your target specification, application, order quantity, destination country and required test limits.
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