Description
COA-BACKED PEPTIDE INGREDIENT
Polygonatum Peptide from Polygonatum sibiricum rhizome
Polygonatum Peptide is supplied as a hydrolysed, low-molecular-weight peptide for B2B nutrition, beverage and supplement projects. Specification is defined by source material, protein content and molecular-weight distribution.
COA-Backed Specification
| Source material | Polygonatum sibiricum rhizome |
|---|---|
| Plant part | Hydrolysed plant protein peptide |
| Form and colour | Fine light-brown powder |
| Assay | Protein >=70.0% on dried basis; low-molecular-weight peptide fraction |
| Method | HPLC |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=5.0% |
| Ash | <=5.0% |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXHJ260623 |
| Manufacture date | 23 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Peptides are specified by source, degree of hydrolysis and molecular-weight distribution. Confirm the protein content basis, the assay method and the MW cut-off, because two products described by the same name can behave very differently in solubility and taste.
- Confirm the source material declaration
- Check protein content and the assay method
- Review molecular-weight distribution data
- Confirm solubility, taste and hygroscopicity for your format
How This Grade Differs
Polygonatum Peptide is a hydrolysed peptide from Polygonatum sibiricum rhizome, not the intact protein and not a botanical extract of the same raw material. Compare source, degree of hydrolysis and MW distribution when substituting.
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
- Protein and peptide beverage powders
- Supplement sachets and capsules
- Clinical and sports nutrition
- Private-label nutrition projects
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 LXHJ260623 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
How is Polygonatum Peptide Powder quantified?
By HPLC against the specification figure of Protein >=70.0% on dried basis; low-molecular-weight peptide fraction.
Which molecular weight profile applies?
The declared specification is Protein >=70.0% on dried basis; low-molecular-weight peptide fraction, and the peptide distribution is reported with the batch.
How long can we hold stock before use?
Two years when stored properly from the manufacture date when the pack stays sealed and dry.
How recent is the representative batch shown?
The batch referenced is LXHJ260623; your shipment is released on its own certificate rather than the representative one.
How is appearance checked?
Fine light-brown powder, compared against a retained sample from the approved batch.
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.
How is the material shipped?
Air and sea freight are both arranged, with the mode chosen against volume, destination and required date. Documents and the HS code are issued with the shipping instructions.
Can you produce to our own specification or packing?
Alternative assay targets, particle size, packing and private-label requirements are 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.
Get the current batch COA, a sample or a quotation
