Published ISO certificates identify Good Nutrition Biotechnology Co., Ltd. Review each document's scope before supplier qualification.
ISO 9001:2015
ISO 22000:2018ISO 9001 covers plant extracts and pharmaceutical intermediates. ISO 22000 covers the named extracts and food additives listed in its certificate, including NAD and MSM. These management-system documents do not certify every catalogue product.
Current status must be confirmed with CQC and the applicable surveillance audit acceptance notice. For Halal, Kosher or organic requirements, request product-specific evidence and confirm availability before ordering.
Sophora Japonica Extract / Quercetin is a Sophora japonica flower-bud extract used as a botanical source of quercetin.
Sophora-derived quercetin powder is selected for antioxidant and cardiovascular-wellness formulations. Source authentication, quercetin basis, residual solvents and particle size are more useful quality indicators than a generic botanical-extract description.
| Product Name | Sophora Japonica Extract / Quercetin |
|---|---|
| Material Identity | Sophora japonica flower-bud extract |
| Appearance | Yellow to brown-yellow fine powder |
| Key Specification | Quercetin content and basis, batch specific |
Final suitability should be confirmed against the agreed product specification, batch COA, destination-market requirements and the buyer’s finished-product validation.
Review Sophora species and flower-bud identity; Quercetin assay and chromatographic fingerprint; Residual solvents, pesticides, heavy metals and microbiological limits. Final acceptance should follow the agreed specification and batch COA.
Suitable for capsules, tablets and dry blends; Use granulated or dispersible grades when flow or suspension is important; Account for active basis and any processing aids in label calculations
Common application directions include Antioxidant and healthy-aging supplements; Cardiovascular and immune-wellness formulas; Botanical quercetin capsules and tablets. Finished-product claims and suitability must be reviewed for the destination market.
B2B purchasing details
For bulk Sophora Japonica Extract purchasing, buyers commonly review marker basis, botanical identity, residual solvents, heavy metals and microbiological limits before confirming sample evaluation, MOQ, packaging and lead time.
Buyers searching for a Sophora Japonica Extract supplier usually compare marker basis, botanical identity, residual solvents, heavy metals, microbiology and packaging before order confirmation.
| Buyer question | What to confirm | Useful next step |
|---|---|---|
| Assay / specification | Confirm marker basis and botanical identity for the intended supplement format. | Read the supplier guide |
| COA and quality documents | Review the batch COA, residual solvents, heavy metals and microbiological limits before approval. | Check quality control |
| MOQ, sample and lead time | Share order size, sample needs, packaging preference and destination market for a workable quote. | Request a quote |
| Application fit | Compare Sophora Japonica Extract with other botanical ingredients for capsules, tablets and blends. | Browse products |
Need a current specification or COA?
Share the ingredient name, target specification, order quantity, packaging preference and destination market so the team can respond with practical quotation details.
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