Description
STRAIN-IDENTIFIED CULTURE
Saccharomyces cerevisiae D571
Saccharomyces cerevisiae D571 is supplied as a strain-identified freeze-dried culture for B2B probiotic blends. The purchasing definition is the strain designation and the delivered potency rather than the species name alone.
COA-Backed Specification
| Identity | Saccharomyces cerevisiae |
|---|---|
| Strain designation | D571 |
| Plant part | Freeze-dried culture, strain-identified |
| Form and colour | Fine off-white to cream powder |
| Assay | Not less than 2.0 x 10^10 CFU/g |
| 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 | LXXJ260112 |
| Manufacture date | 12 Jan 2026 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Probiotics are specified by strain, potency at delivery and enumeration method. Confirm the strain designation, the CFU basis (per gram or per dose) and the overage required to hold potency through your shelf life and packing format.
- Confirm the strain designation, not only the species
- Check the CFU basis and enumeration method
- Review water activity and viability data
- Confirm cold-chain and packing requirements
How This Grade Differs
D571 is a specific strain and is not interchangeable with other strains of the same species. Potency, water activity and enumeration results differ by strain and by production lot, so qualification must be strain-based.
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
- Probiotic capsules and stick packs
- Powdered functional beverages
- Fermented and cultured food projects
- Private-label microbiome products
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 LXXJ260112 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 long can we hold stock before use?
Two years when stored properly from the manufacture date when the pack stays sealed and dry.
Which specification figure should the purchase order reference for Saccharomyces D571 Freeze-Dried Powder?
The figure Not less than 2.0 x 10^10 CFU/g, measured by HPLC.
Can the COA be matched to the lot you ship?
Yes. The certificate is issued for the shipped lot, which is the batch LXXJ260112 referenced on the specification.
How is viable count declared?
Viable count is declared as Not less than 2.0 x 10^10 CFU/g, with the strain identity recorded on the certificate.
Which particle size or presentation applies?
98% through 80 mesh
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.
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.
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.
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
