Description
B2B BUYER ANSWER
Grape Seed Powder
LongBio supplies Vitis vinifera seed powder for B2B formulation. Buyers can confirm raw-material identity, particle size, physical and microbiological limits, packaging and the current offered-lot documentation.
Buyer resources: compare specifications · review test methods · quality evidence
COA-Backed Specification
| Botanical identity | Vitis vinifera L. |
|---|---|
| Plant part | Seed |
| Form and colour | Fine brick-red powder |
| Assay | Seed powder; no extract ratio or marker assay is stated on the COA |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=12.0%; result 10.82% |
| Ash | <=8.0%; result 6.99% |
| Representative batch | LXPTZ250116 |
| Manufacture date | 16 January 2025 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Compare this Seed powder; no extract ratio or marker assay is stated on the COA ratio grade by botanical identity, plant part and physical specification; the ratio is not an active-marker percentage.
- Evaluation sample typically 10-20 g
- Regular MOQ typically 1 kg
- Typical lead time 7-15 working days
How This Grade Differs
Grape Seed Powder is qualified using botanical identity: Vitis vinifera L.; plant part: Seed; offered grade: Seed powder; no extract ratio or marker assay is stated on the COA. Its purchasing definition is the stated ratio grade (Seed powder; no extract ratio or marker assay is stated on the COA), not a guaranteed active-compound concentration.
Compare these related grades before approval:
- Grape Seed Extract Powder 95% OPC
- Grape Skin Extract Powder 20% Resveratrol
- Grape Seed Extract Powder 30% OPC
For a substitution review, compare botanical identity, plant part, assay target, analytical method, physical form and the current offered-batch COA.
Quality and Documentation
Representative batch LXPTZ250116 supports the specification table above. Confirm current batch results before release; the representative record remains supporting context rather than a shipment guarantee.
Frequently Asked Questions
What specification defines Grape Seed Powder?
For Grape Seed Powder: Seed powder; no extract ratio or marker assay is stated on the COA.
What botanical details should buyers match?
For Grape Seed Powder: Use Vitis vinifera L., Seed as the identity checkpoint, then confirm that the sample and commercial documents describe the same material.
Which batch document controls shipment approval?
For Grape Seed Powder: The page cites representative batch LXPTZ250116. Use it as an example of the tested grade, not as the release record for a future shipment.
When should buyers request the current COA?
For Grape Seed Powder: Request the current COA before issuing approval so the offered lot can be checked against the agreed identity, grade and limits.
Which controls should be reviewed for this grade?
For Grape Seed Powder: Technical acceptance should cover identity, grade-defining data, physical quality and the safety tests required for the intended market.
What supply details require quotation-stage confirmation?
For Grape Seed Powder: The quotation should state the applicable MOQ, pack format and lead time after current inventory and testing needs are reviewed.
Can selected physical attributes be discussed?
For Grape Seed Powder: Discuss pack format and relevant physical parameters before quotation; feasibility and any MOQ effect are confirmed for the exact request.
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