Precision is a process.
Refining, concentration, molecular distillation, deodorisation and release testing: the six stages that carry crude oil to a released omega-3 batch.
The route from raw oil to specification.
The route from crude oil to a released concentrate is a sequence of separation steps. Each one exists to remove something: non-triglyceride material, unwanted fatty acids, contaminants, odour. What has to survive intact is the EPA and DHA.
- Concentration up to 98% total omega-3
- EPA-rich and DHA-rich cuts produced deliberately
- Nitrogen blanketing from intake to drum filling
- Every cut assayed by GC before blending
Manufacturing processes
Each stage is recorded per batch, and deviation holds the lot rather than being corrected on paper.
Crude and refined feed oils are assayed on arrival; lots outside the incoming oxidation limit are rejected before processing.
Degumming, neutralisation, bleaching and winterisation remove the non-triglyceride fraction and prepare the oil for concentration.
Fatty acids are converted to ethyl esters, which is what makes high concentration technically reachable.
Short-path distillation under deep vacuum separates the esters by boiling point at a temperature low enough to protect EPA and DHA.
A controlled strip removes odour and off-notes while keeping oxidation values inside the declared limits.
Each cut is assayed, blended to the agreed ratio, dosed with antioxidant, packed under nitrogen and released with its COA.
The processes behind the specification
Each page covers what the step removes, how it is controlled, and which values end up on the certificate of analysis.
Refining the sensory profile
Controlled-strip deodorisation that removes odour and off-notes while keeping oxidation values inside specification.
View detailsManaging heavy metals through refinement
Adsorbent and distillation stages that bring lead, arsenic, cadmium and mercury below the limits set by the destination market.
View detailsPrecision through molecular distillation
Short-path distillation under high vacuum separates omega-3 ethyl esters by boiling point without thermal damage to the fatty acids.
View detailsConcentration to a defined composition
How EE, TG and rTG forms are produced, and how the choice of route changes the ratio, the absorption profile and the finished product.
View detailsOxidation control at every stage
Nitrogen blanketing, antioxidant systems, low-TOTOX grades and sealed handling designed to hold PV, AV and TOTOX inside specification.
View detailsControl of PCBs and dioxins
Targeted removal and third-party verification of PCBs, dioxins and dioxin-like PCBs against EU and US limits.
View detailsA continuous record from source to shipment
Lot-level linkage from crude oil intake through production, release documentation and shipment.
View detailsBatch specifications and documents
| Sample and production batches | Sample lots for evaluation and production lots for commercial orders follow the same release procedure; only the quantity differs. |
|---|---|
| Batch specifications | EPA/DHA ratio, total omega-3, molecular form, oxidation limits and contaminant limits are fixed per product before the run starts. |
| Product documents | COA, specification sheet, TDS, SDS, certificates and traceability records are issued with the batch or on request. |
| Retention | Retained samples are held so an oxidation question can be re-checked later in the shelf life. |
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Company Profile
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Nerivanta-Company-Profile.pdfProduct Specification List
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Nerivanta-Product-Specification-List.pdfQuality & Documentation Overview
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