Short answer: Plant-extracted Walnut Oil is a essential oil bought mainly by fragrance compounds manufacturers. The three things worth verifying before an order are GC profile, odour intensity and the documentation that ships with the lot. Standard packing is 5 kg and 25 kg epoxy-lined drum, and a 1 kg to 5 kg trial is normally enough to qualify the material on the bench.
Plant-extracted Walnut Oil is a essential oil produced for industrial formulation rather than for retail sale. Production starts with raw material intake and lot identification, moves through the processing steps that define the material's character, and ends with a release decision against a retained reference standard. The reference is the part most buyers never see, and it is the part that decides whether month six behaves like month one.
Because the material is sold on specification, the useful question is not "what is it" but "what does the certificate say". A lot that meets a written range for GC profile and odour intensity is worth more than a lot that is merely described as premium, and the difference usually shows up in the filling line rather than in the sample bottle.
The parameters below are the ones that usually decide whether a trial succeeds. Values are typical release ranges; the certificate for a specific lot will quote measured results rather than the range.
| Parameter | Typical value | Method |
|---|---|---|
| Product | Plant-extracted Walnut Oil | — |
| Category | Natural Plant Essential Oil | — |
| Appearance | Conforms to the retained reference | Visual |
| GC Profile | Within the agreed release range | In-house / third party |
| Odour Intensity | Quoted on the certificate | In-house |
| Clarity | Verified before release | In-house |
| Suggested dosage | 0.10–1.0% in the fragrance concentrate | Application trial |
| Microbiology | Within food grade limits | ISO 4833 / ISO 21527 |
| Heavy metals | Below the destination market limit | ICP-MS |
| Packaging | 5 kg and 25 kg epoxy-lined drum | — |
| Shelf life | 24 months unopened | Stability data |
Applications for Plant-extracted Walnut Oil cluster around fragrance compounds, personal care and household care. The differences between them matter more than the similarities, because the failure mode changes with the matrix.
Fragrance Compounds: in this system the material competes with everything else for the same sensory or functional space. A three point dosage curve — 0.7x, 1.0x and 1.3x of the suggested level — tells you more in one afternoon than three rounds of correspondence.
Personal Care: the constraint here is usually adulteration with cheaper fractions. Start at the lower end of the suggested range, confirm the sensory or analytical result, and only then move up. Pushing the dosage to compensate for a weak raw material is the most common reason a formula becomes unstable later.
Household Care: in this system the material competes with everything else for the same sensory or functional space. A three point dosage curve — 0.7x, 1.0x and 1.3x of the suggested level — tells you more in one afternoon than three rounds of correspondence.
The usual starting point is 0.10–1.0% in the fragrance concentrate. Two adjustments are almost always needed: one for the process, and one for the market. A process that exposes the material to heat for longer than a few minutes will need a higher charge to deliver the same result at the end, and a market with a stricter labelling rule may cap what you can declare.
Rather than guess, ask for a sample and run the curve. A supplier who has supplied the application before can usually predict where the window sits, and that prediction is worth more than a lower price.
A usable certificate quotes measured values, identifies the lot it belongs to, and states the method behind each number. For this category the minimum set is GC-MS profile, optical rotation, relative density and acid value, plus microbiology and a heavy metal statement. If a certificate lists only "conforms" without a value, it is a declaration rather than an analysis.
Ask for the certificate of the lot you will actually receive, not a representative one from last year. The difference shows up when a customer audit asks for traceability.
Standard packing is 5 kg and 25 kg epoxy-lined drum. Trial quantities of 1 kg and 5 kg are normally available, and a production run follows once the specification is agreed in writing. Lead time is typically 7 to 15 working days ex-works, and mixed containers can be consolidated across categories to reach a full load.
The documents that matter at the border are the commercial invoice, packing list, certificate of origin where applicable, and the health or non-GMO declarations some destinations require. These are issued with the shipment rather than after it, because a container held at customs costs more per day than the material is worth per kilogram.
The same material can be a food ingredient in one market and a regulated substance in another, so the destination decides the paperwork. In the European Union the relevant framework is the food additive and flavour regulation set, with labelling driven by the allergen list. In the United States the equivalent conversation is about GRAS status and FDA labelling. In much of Asia the requirement is a health or food safety declaration issued at the border.
None of this changes what the material is. It changes what has to be written on the label and which certificate has to travel with the pallet, and it is worth settling before the artwork is printed.
Four variables move the price of Plant-extracted Walnut Oil more than anything else: the specification range, the quantity of the run, the packing, and the documentation. A tighter assay is not a marketing claim, it is a yield loss at the plant, and it is priced accordingly. A 1 kg trial and a 25 kg drum are not the same product commercially even when the certificate is identical.
Beware of quotes that are much lower than the market: in this category they usually mean a wider specification, a substitute raw material, or a certificate written for a different lot. The cheapest way to find out is to buy a sample, test it against the specification, and compare the result with the certificate that came with it.
The recurring issue in this category is adulteration with cheaper fractions and batch-to-batch odour variation. It rarely appears in a sample and almost always appears in production, which is why trials should be run in the real matrix rather than in water.
What is the minimum order quantity for Plant-extracted Walnut Oil? Typically 1 kg for a trial and 25 kg for a production order, though the packing can be adjusted for a first run.
Can you send a sample with its certificate? Yes. Samples of 100 g to 500 g are dispatched with the lot certificate, usually within three working days.
Is the specification negotiable? Within the production window, yes. A narrower assay, a different mesh or a declared allergen position can usually be accommodated, and the answer comes with a sample rather than a promise.
Which documents are supplied? COA for the lot, MSDS, allergen statement, non-GMO statement and packing list.
How is the material packed for export? 5 kg and 25 kg epoxy-lined drum, with an inner food grade liner. Custom packing is possible from 100 kg.
How long does delivery take? 7 to 15 working days ex-works for a standard grade, longer where a custom specification or private label artwork is involved.
Buying Plant-extracted Walnut Oil is a documentation exercise as much as a purchasing one. The suppliers worth keeping are the ones whose certificate matches the drum, whose lead time holds in a busy quarter, and who answer a technical question with a value rather than an adjective.
