Description
MARINE-DERIVED INGREDIENT
Oyster extract concentrate — Concentration 30% on solid basis
Oyster extract concentrate is supplied as a Viscous amber-grey liquid B2B ingredient for further processing. Produced by our audited marine-ingredient partner facility and supplied under LongBio batch documentation. Batch identity, specification and COA are matched across the quotation.
COA-Backed Specification
| Identity | Crassostrea gigas (Pacific oyster) |
|---|---|
| Form and colour | Viscous amber-grey liquid |
| Assay | Concentration 30% on solid basis |
| Method | Refractometry and gravimetric |
| Solid content | 30% +/-1% |
| Appearance | Clear to slightly opalescent liquid |
| pH (as supplied) | Within the approved specification range |
| Density | Within the approved specification range |
| Preservation | No preservative added unless agreed in writing |
| Heavy metals | Within the limits of the approved specification |
| Microbiological limits | Within the limits of the approved specification |
| Representative batch | LXHY260618 |
| Manufacture date | 18 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Specify Oyster extract concentrate by the declared basis, the delivered form and the certificate of analysis. For this grade the basis is Concentration 30% on solid basis and the delivered form is Viscous amber-grey liquid. Confirm the destination market requirements, the intended use category and the required documentation before approval. This material is offered as an industrial raw material for further processing, not as a finished consumer product, and no health or medical claim is made.
- Declared basis and delivered form stated on the specification
- Documentation supplied: batch COA, specification sheet and agreed third-party testing
- Species and origin stated on the certificate; substitution requires written confirmation
- Destination market and intended use to be confirmed at quotation stage
- Samples available for evaluation against your own process
How This Grade Differs
Oyster extract concentrate is listed as a liquid Crassostrea gigas (Pacific oyster) ingredient with 30% solid content measured by refractometry and gravimetry. Compare the linked 20% liquid concentrate on the same solids basis; whole-body powder is a different physical format and purchasing specification. Confirm the current batch documents before substitution.
Compare these related grades before approval:
For a substitution review, compare marine species, liquid or dry form, declared solid-content basis, analytical method and the current offered-batch COA.
Application Areas
Discuss the intended liquid formulation and processing conditions with the supplier before selecting this concentrate.
Packaging and Delivery
Request the available pack sizes, evaluation sample, minimum order quantity and lead time for the offered lot in the quotation.
Quality and Documentation
Representative batch LXHY260618 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 lot traceability handled?
Each lot keeps batch records and a retained sample, and the certificate for LXHY260618 carries the same batch reference used in the quotation.
What shelf life and storage conditions apply?
Two years when stored properly, kept sealed in a dry place away from light and heat.
What assay does Oyster Extract Concentrate 30% carry on the certificate of analysis?
Assay Concentration 30% on solid basis, determined by Refractometry and gravimetric.
How is appearance checked?
Clear to slightly opalescent liquid, compared against a retained sample from the approved batch.
What is the declared source material for this grade?
Crassostrea gigas (Pacific oyster), as recorded on the specification and the batch certificate.
What packing options are available?
Standard packing is a sealed food-grade inner liner inside an export carton or fibre drum. Pack size, labelling and private-label artwork are agreed in the written specification.
Can I get a sample before placing the order?
Yes. An evaluation sample is normally available before a formal order. Sample quantity, courier account and destination are confirmed at the time of request.
Which documents come with the shipment?
Batch COA, specification sheet, agreed third-party testing where required, commercial invoice, packing list, certificate of origin and transport documents. The exact set is confirmed against the product and destination market.
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
