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GMO Testing

Real‑time PCR screening and event‑specific quantification of GM crops under ISO/ IEC 17025 accreditation and EU labelling requirements.

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Three‑Step GMO Analysis –
Screening, Identification, Quantification

Corn plants growing in clear test tubes in a laboratory setting.

A real‑time PCR workflow supports efficient determination of genetic modification: screening for common genetic elements, and event‑specific identification and quantification relative to the species reference gene. 

All methods are ISO/IEC 17025 accredited.

Parameter Portfolio

Reliable detection and quantification of genetically modified components using validated methods — supporting compliance with regulatory requirements and quality assurance.

Soybean GMO Events

Soy is the most widely cultivated GM crop globally with high relevance for feed, lecithin, protein isolates and oils.

Methods: Screening, event‑specific identification and quantification.

Common analytes: GTS 40‑3‑2 (Roundup Ready), MON 87701 × MON 89788(Roundup Ready), A2704‑12 (Liberty Link), DAS‑44406‑6 (Enlist E3), FG72, SYHT0H2, MON 87708, CV127.

Maize GMO Events

Maize has the highest number of authorised GM events in the EU. Stacked traits combining IR and HT are frequent in global production.

Methods: Screening, event‑specific identification and quantification.

Common analytes: DAS-40278-9 (Enlist Maize), 3272 (Enogen), 59122 (Herculex RW), MON863 (YieldGard Rootworm).

Rapeseed, Rice & Other Crops

Rapeseed for oil imports, rice for non‑authorised event monitoring, cotton and sugar beet for commodity‑specific supply chains.

Methods: Screening, event‑specific identification and quantification.

Common analytes: GT73, MS8, Rf3, LL601, Bt63, KeFeng 6, MON 531.

Screening Elements

Universal screening targets present across many GM events. A positive result triggers targeted identification of the specific transformation event.

Methods: Real‑time PCR (screening).

Common analytes: P‑35S, T‑NOS, P‑FMV, CTP2, bar/pat, Cry1Ab, Cry1F.

Analytical Methods

All GMO analyses are based on real‑time PCR.
Certified reference materials ensure traceable quantitative accuracy.
Qualitative Screening

Real‑time PCR

Detection of universal GM elements such as 35S, NOS, FMV and CTP2 via hydrolysis probe assays. Provides rapid first‑line clarification for unknown samples and large batches.

Suitable for: GM presence/absence, bulk screening, unknown origin samples.

Construct-Specific Detection

Real‑time PCR

Detection of transgene‑to‑transgene junctions characteristic of a particular GM construct. Applied when screening is positive but the event identity remains unresolved.

Suitable for: Construct confirmation, Narrowing event identity, Multi‑event screening.

Event Identification

Real‑Time PCR

Detection of the unique insertion–genome junction (flanking sequence) defining an authorised or non‑authorised GM event. Required for regulatory reporting and traceability.

Suitable for: Event confirmation, Regulatory submissions, Non‑authorised event checks.

Event Quantification

Real‑time PCR

Relative quantification of GM event DNA to a species‑specific reference gene (e.g., lectin for soy, zein for maize). Determines GM proportion per ingredient for EU labelling compliance at 0.9 %.

Suitable for: Labelling threshold assessment, Ingredient‑level quantification, Compliance testing.

Analytical Interpretation

GMO testing supports regulatory compliance, supply‑chain verification and risk‑based decision‑making across the entire value chain – from commodity imports to final product release.
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EU Labelling Compliance

Quantification of GM content per ingredient determines whether the EU labelling threshold is exceeded. Results include measurement uncertainty and event‑specific reporting under ISO/IEC 17025.

Typical applications: GM% determination, threshold assessment, labelling verification.

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Incoming Goods & Supply Chain Control

Screen soy, maize, rapeseed and rice batches for GM presence before processing. Verification of supplier declarations, IP documentation and non-GMO claims.

Typical applications: Incoming goods screening, supplier validation, IP/Non-GMO verification.

A computer monitor on a laboratory desk displaying non-GMO analysis results.

Non‑Authorised GMO Detection

Detection of GM events not authorised in the EU. Essential for rice imports and for monitoring novel events not assessed by EFSA. Positive findings trigger regulatory follow‑up (RASFF).

Typical applications: Zero-tolerance checks, non-authorized event screening, regulatory escalation.

A colorful assortment of various beans and rice types displayed together in a bowl.

Organic & Non‑GMO Certification

Organic products require absence of GMO contamination. Non‑GMO standards use stricter thresholds and mandate event‑specific testing.

Typical applications: Organic compliance, VLOG “Ohne Gentechnik”, Non‑GMO certification.

Illustration Law

Regulatory Framework

GMO authorisation, labelling and traceability in the EU are governed by Regulation (EC) No 1829/2003 and Regulation (EC) No 1830/2003, requiring event‑specific identification.

Related Analytics

A close-up of soybeans, highlighting their texture and color.

Allergen Testing

Soy allergen analysis can be combined with GMO testing using the same DNA extract for efficient parallel screening of soy‑based ingredients and feed.

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Pesticide Residue Analysis

Herbicide‑tolerant GM crops may contain residues of glyphosate, glufosinate or 2,4‑D from cultivation. Combined GMO + residue testing provides a complete compliance assessment for imported commodities.

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