Description
WHOLE PLANT POWDER
Oryza sativa L. — Whole grain powder (no assay)
黑米粉 is a whole-material powder with no extraction step, so there is no assay to compare. Buyers decide on particle size, moisture and microbial load instead.
COA-Backed Specification
| Identity | Oryza sativa L. |
|---|---|
| Plant part | Seed (black pericarp) |
| Form and colour | Dark purple-brown powder |
| Assay | Whole grain powder (no assay) |
| Method | Identity and microbiology per batch |
| Particle size | 98% through 80 mesh |
| Loss on drying | Within the limits of the approved specification |
| Ash | Within the limits of the approved specification |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Shelf life | Two years when stored properly |
Limits shown are the agreed specification. Result values are issued on the batch-specific certificate of analysis.
Buyer Decision Guide
Confirm mesh size, moisture and whether a carrier was added. Whole powders are often cut with carrier without saying so.
- Assay / grade: Whole grain powder (no assay), tested by Identity and microbiology per batch.
- Identity: Oryza sativa L., Seed (black pericarp).
- Appearance: dark purple-brown powder.
- Dispersible in water but not soluble; expect sediment without a stabiliser.
- Packing and storage: sealed food-grade liner in an export carton or fibre drum; keep cool and dry.
- Documentation: COA, specification sheet and SDS issued with each batch.
How This Grade Differs
No whole-material powder of this product was listed on the site before this page. This is a powder, not an extract: there is no ratio and no assay to quote.
Quality and Documentation
Released on a batch certificate covering assay or grade, identity, moisture, heavy metals and microbiology.
Frequently Asked Questions
Can the COA be matched to the lot you ship?
Yes. The certificate is issued for the shipped lot, which is the batch named on the quotation referenced on the specification.
What is the declared source material for this grade?
Oryza sativa L., as recorded on the specification and the batch certificate.
What do you declare for moisture and ash?
Both are released against the limits on the approved specification; the measured result for your lot appears on its COA.
How long can we hold stock before use?
Two years from the manufacture date when the pack stays sealed and dry.
Is the mesh size fixed or adjustable?
Standard supply is 98% through 80 mesh, and alternative cuts can be agreed in the written specification.
What is the usual lead time?
Regular production normally takes 7-15 working days after deposit, depending on stock, volume, testing and customisation requirements.
Can I review the COA before I pay?
Yes. Request the current or representative COA and check identity, method, limits and results before approving the purchase order.
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.
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
