Description
B2B INGREDIENT · SPECIFICATION & BATCH DOCUMENT SUPPORT
Plantain Leaf Powder
LongBio supplies plantain leaf powder for B2B ingredient qualification and formulation. Buyers can review the defined grade and request the current offered-lot COA, evaluation sample, packaging details and quotation.
COA-Backed Specification
| Botanical identity | Plantago ovata |
|---|---|
| Plant part | Leaf |
| Form and colour | Fine dark-brown powder |
| Assay | Raw botanical powder; identity and physical specification comply (source product name says Plantain extract) |
| Particle size | 98% through 80 mesh |
| Loss on drying | <=12.0%; result 8.63% |
| Ash | <=8.0%; result 6.21% |
| Representative batch | LXCQ210520 |
| Manufacture date | 20 May 2021 |
| Shelf life | Two years when stored properly |
Representative values do not replace the current shipment COA.
Buyer Decision Guide
Compare this botanical powder by identity, plant part, particle characteristics and batch quality; concentrated extracts require a separate approval.
- Evaluation sample typically 10-20 g
- Regular MOQ typically 1 kg
- Typical lead time 7-15 working days
How This Grade Differs
Plantain Leaf Powder is qualified using botanical identity: Plantago ovata; plant part: Leaf; offered grade: Raw botanical powder; identity and physical specification comply (source product name says Plantain extract). Its purchasing definition is a botanical powder with identity and physical criteria, not an extract concentration.
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.
Quality and Documentation
Representative batch LXCQ210520 supports the specification table above. Current lot evidence and buyer-defined verification govern acceptance of the commercial shipment.
Plantain Leaf — The Traditional Respiratory Herb with Modern Clean-Label Appeal
Plantain leaf (Plantago major/lanceolata) is a traditional herb with modern applications in respiratory-comfort and throat-care formulas, valued for its mucilage and iridoid glycoside (aucubin) content. Whole-leaf powder suits teas, capsules and herbal blends: a typical respiratory-comfort formula combines 300–500 mg plantain leaf powder, 200 mg thyme extract, and 100 mg marshmallow root. For throat lozenge and syrup applications, a liquid extract or higher-ratio powder is often preferred for concentrated dosing.
Spec Points Buyers Should Confirm:
- Botanical species (Plantago major vs lanceolata) — affects aucubin profile
- Particle size (for tea-bag vs capsule use)
- Steam treatment for microbial control (raw herb risk)
Frequently Asked Questions
What specification defines Plantain Leaf Powder?
For Plantain Leaf Powder: Raw botanical powder; identity and physical specification comply (source product name says Plantain extract).
What establishes the botanical source?
For Plantain Leaf Powder: Qualification starts with Plantago ovata, Leaf. The product name alone is not sufficient when species, plant part or grade differs.
What evidence is needed for the offered lot?
For Plantain Leaf Powder: The page cites representative batch LXCQ210520. The sample, quotation and shipment COA should be traceable to the grade actually offered.
Should the COA be reviewed before sample approval?
For Plantain Leaf Powder: Yes. The commercial review should use the COA for the lot being offered, together with the matching quotation and specification.
Which quality data should be checked together?
For Plantain Leaf Powder: Review identity and Raw botanical powder; identity and physical specification comply (source product name says Plantain extract) together with the listed physical tests and applicable contaminant and microbiological limits.
How should buyers confirm supply timing?
For Plantain Leaf Powder: Commercial timing is finalised after quantity, packaging, document set and any additional testing have been agreed.
Can particle size or pack format be adjusted?
For Plantain Leaf Powder: Application-specific requests require technical review. Approved changes should be documented rather than treated as an informal substitution.
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