Description
MARINE-DERIVED INGREDIENT
Marine fish powder — Total protein >=50%
Marine fish powder is supplied as a Fine off-white to light-beige powder 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 | Mixed marine fish |
|---|---|
| Form and colour | Fine off-white to light-beige powder |
| Assay | Total protein >=50% |
| Method | Kjeldahl |
| 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 | LXHY260601 |
| Manufacture date | 1 Jun 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.

Buyer Decision Guide
Specify Marine fish powder by the declared basis, the delivered form and the certificate of analysis. For this grade the basis is Total protein >=50% and the delivered form is Fine off-white to light-beige powder. 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
Marine ingredients from the same species differ by the fraction delivered and the declared basis, not only by price. Marine fish powder is offered as Total protein >=50%. Grades on a different basis, or concentrates at other solid levels, are separate products with separate certificates and should not be substituted without written confirmation.
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
- Hard capsules and two-piece capsule filling
- Stick packs and single-serve sachets
- Powder blends and dry mixes
- Beverage and liquid concentrate systems, subject to the buyer’s process validation
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 LXHY260601 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 links the quotation to the delivered material?
The specification figure (Total protein >=50%) and the batch number LXHY260601 carry through from quotation to certificate.
How is appearance checked?
Fine off-white to light-beige powder, compared against a retained sample from the approved batch.
Which impurity limits are declared?
Moisture and ash are held within the approved specification limits, with heavy metals and microbiology tested on every lot.
What shelf life and storage conditions apply?
Two years when stored properly, kept sealed in a dry place away from light and heat.
How is Marine Fish Powder 50% Protein quantified?
By Kjeldahl against the specification figure of Total protein >=50%.
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.
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.
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.
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




