Tea Polyphenols 95%，Catechins 75% ，EGCG45%
Latin name:Gamellia sinensis O.KtzePlant part used: Leaves Color: Yellow brown or red brown powder Specification:Tea Polyphenols 95% UV Catechins 75% HPLCEGCG 45%HPLC
View productCranberry extract is a standardized botanical ingredient, so most sourcing decisions come down to three things: who makes it, which assay method backs the specification, and how the powder physically ships. This guide is written for teams comparing quotations — first-time buyers and repeat purchasers of cranberry extract bulk volumes alike — and it starts with the questions that separate a cranberry extract supplier you can scale with from one you cannot.
Sourcing snapshot — Cranberry Extract NBPAC30
Ten questions worth asking in writing before a purchase order exists. Each one is grouped by the risk it removes, and each answer below reflects what is publicly documented today — the follow-up in the second line is what your team should request directly.
Proanthocyanidin content is method-dependent, which means two quotations that both read “30% PAC” are not automatically interchangeable. Before you compare price per kilogram, agree on the method behind the number.
| Assay approach | What it is measuring | Best suited to | Ask the supplier for |
|---|---|---|---|
| EP-UV colorimetric |
A UV absorbance reading against a reference standard, used for a declared total proanthocyanidin figure. | Routine lot release where an agreed, repeatable total figure is the contract number. | The reference standard used and the stated tolerance around the declared percentage. |
| BL-DMAC colorimetric |
A colour-development assay that reports proanthocyanidins on a defined basis, widely used for cranberry material. | Buyers who need the figure to match a customer or retailer specification written on a DMAC basis. | Confirmation that the certificate states the method, not just the percentage. |
| HPLC chromatographic |
A separation-based profile showing individual peaks rather than one summed colour reading. | Identity confirmation, fingerprint comparison between lots, and troubleshooting a specification dispute. | Whether an HPLC fingerprint can be supplied alongside the routine release test. |
Method note: the product documentation names EP-UV and BL-DMAC for the proanthocyanidin specification and lists HPLC, TLC, UV and GC as the facility’s instrumentation. If your finished-product claim is written on a specific basis, put that basis in the purchase specification so the certificate, your QC release and your label all speak the same language.
The same ingredient supports very different orders. Use the scenario closest to yours to decide which specification range and packaging conversation to open with.
Scenario A
Where the label declares a proanthocyanidin figure and the dosage form needs a free-flowing powder that blends cleanly with excipients.
Decision: open with a high-PAC grade, confirm the assay method, and lock the certificate fields you will audit every lot against.
Scenario B
Where solubility and a neutral-to-mild flavour profile matter as much as the actives, because the powder lands in a liquid base.
Decision: confirm dispersion behaviour in your own base and settle the grade on cost-in-use, not on the highest number available.
Scenario C
Where the ingredient sits in a sugar or gummy matrix and colour contribution becomes a formulation variable.
Decision: ask how the purple-red powder behaves in your matrix and at what inclusion level.
Scenario D
Where the ingredient is used as a botanical addition rather than a standardized oral dose.
Decision: agree the grade on appearance and handling, and keep oral-release documentation separate from your cosmetic paperwork.
Scenario E
Where you need a small pack to prove the formula before committing to a production quantity.
Decision: request a sample against the exact specification you intend to buy at scale, then confirm the format that follows.
Scenario F
Where cranberry is one of several standardized extracts and consistency across suppliers decides your blend yield.
Decision: consolidate the extracts you can from one facility and align every certificate to the same assay-method convention.
A drum is not a detail. How the powder is packed determines how it stores, how it clears your goods-in inspection, and how much handling it takes before it reaches your line.
You decide: whether the grade you tested is the grade you will buy, and whether the COA fields match your internal release product format.
You decide: the tolerance you will accept between lots and who reviews each certificate before release.
You decide: packaging, delivery terms, document handover and the planning window — agree all four before release.
Eight stages, each with the point where the buying decision actually sits. Skipping a stage is what turns a routine shipment into a deviation report.
Send the grade, quantity, destination and any label-driven requirements so the specification can be quoted against something concrete.
Decision point: is the specification you asked for actually what your label needs?
Ask for a sample drawn against the intended production specification, not a generic laboratory lot.
Decision point: does the sample pass your own bench test?
Read the certificate of analysis before the price sheet: method, declared specification and lot identity should all match your request.
Decision point: does the method on the certificate match your claim?
Pin the pack format, delivery term and document set to the quotation so nothing has to be renegotiated later.
Decision point: what exactly is included at the quoted price?
Production follows the agreed specification; custom packaging or an adjusted specification is confirmed here.
Decision point: has the final specification been acknowledged in writing?
The lot is tested against the agreed specification, with HPLC, TLC, UV and GC available as the instrument set.
Decision point: who on your side signs off against the released certificate?
Drums are packed, labelled with the lot code and prepared for the agreed delivery term.
Decision point: do label, packing list and certificate agree with each other?
Certificates and supporting statements are transferred so your release and label files close cleanly.
Decision point: is anything still outstanding before the next order?
Documentation is usually the bottleneck between a container arriving and stock becoming releasable. Know what each item is for before you are asked for it.
What it is: the lot-specific test result against the agreed specification.
Used for: your QC release decision and any retailer or customer specification file.
What it is: the standing description of the ingredient, including declared actives and method.
Used for: writing the purchase specification and matching it against the finished-product claim.
What it is: storage and shelf-life information supporting the ingredient in its packed form.
Used for: setting your own retest date and warehouse handling rules.
What it is: identity confirmation for the material received.
Used for: goods-in verification before the drum enters your production area.
What it is: the vegan, non-GMO, soy and gluten-free position, plus the no-fillers and no-additives statements.
Used for: label claims, packaging copy and customer questionnaires.
What it is: the link between batch code and the fruit lot behind it.
Used for: recall readiness, audits and customer traceability requests.
Two quotations for the same grade can still differ substantially. These are the variables that move the number, in the order they usually matter.
A higher declared proanthocyanidin figure, or a more demanding assay basis, changes both the raw material selection and the testing burden behind each lot.
Larger quantities spread raw material selection, production changeover and testing across more kilograms, which is why the same grade rarely prices flat across tiers.
Standard packing versus custom packaging, mixed pallets or special labelling all add handling time before the goods are released for dispatch.
Routine release testing is not the same as adding an identity report, a fingerprint or an extra method verification. Specify exactly which documents must accompany the lot.
Who arranges and insures the movement, and where risk transfers, changes the landed cost even when the ex-works figure looks identical.
Custom statement letters, extra labelling checks or customer-specific paperwork are real work. Ask early rather than discovering it after the order is placed.
Send your grade, quantity, destination and the document set you need, and the specification can be quoted against your real requirements — including OEM/ODM volumes, custom packaging and adjusted specifications for capsule, beverage or blend formats.
Keep adjacent product options together for a faster catalog comparison.
Latin name:Gamellia sinensis O.KtzePlant part used: Leaves Color: Yellow brown or red brown powder Specification:Tea Polyphenols 95% UV Catechins 75% HPLCEGCG 45%HPLC
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Featuring ≥24% flavonol glycosides, this ginkgo biloba extract supports GMP-compliant manufacturing. Source premium plant extract from a reliable supplier.
View productit is the code listed for this cranberry extract grade, standardized on proanthocyanidins. the header specification block names 10%, 30% and 50% proanthocyanidins with ep-uv and bl-dmac as the methods, while the specification section lists a wider range of 5%, 10%, 15%, 20%, 30% and 50%. confirm the exact grade you are buying on the current product page and on your quotation.
compare the method before the percentage. ep-uv and bl-dmac are colour-based approaches that report a defined proanthocyanidin figure, while hplc reports a chromatographic profile. ask which method appears on the certificate of analysis, and put that method into your purchase specification so the number you buy is the number you audit.
the fruit origin is stated as usa, the botanical name is vaccinium macrocarpon l, and the part used is cranberry fruit. the ingredient is described as rich in proanthocyanidins and other antioxidants, and as a purple-red, free-flowing powder produced by water and/or ethanol-water extraction.
the listed applications are dietary supplements, food and beverage additives, skincare products, and health drinks and teas. named formulation formats include capsules, tablets, powders, drink mixes, shots, confectionery, and functional snacks or beverages. the supplier describes the powder as free-flowing with good solubility and a neutral-to-mild flavour profile.
the supplier offers a certificate of analysis, specification sheets, stability data and an id test report, and states vegan, non-gmo, soy-free and gluten-free positioning with no fillers, flavours, additives, preservatives or artificial colours. send your own document checklist before the order so the handover is complete on arrival.
oem/odm support is offered, along with custom packaging, specification adjustment and scalable production. the facility describes advanced purification, drying and milling techniques and quality control using hplc, tlc, uv and gc. agree the adjusted specification, the pack format and the delivery term in writing before production is scheduled.