OcrV1, Main, Exploration, bibRecord, 000788

Development of sampling approaches for the determination of the presence of genetically modified organisms at the field level : GMO Analysis

Identifieur interne : 000788 ( Main/Exploration ); précédent : 000787; suivant : 000789

Development of sampling approaches for the determination of the presence of genetically modified organisms at the field level : GMO Analysis

Auteurs : Jelka Sustar-Vozlic [Slovénie] ; Katja Rostohar [Slovénie] ; Andrej Blejec [Slovénie] ; Petra Kozjak [Slovénie] ; Zoran Cergan [Slovénie] ; Vladimir Meglic [Slovénie]

Source :

Analytical and bioanalytical chemistry [ 1618-2642 ] ; 2010.

RBID : Pascal:10-0347543

Descripteurs français

Pascal (Inist)
- Echantillonnage, Organisme génétiquement modifié, Analyse trace, Méthode, Analyse donnée, Distribution, Reconnaissance optique caractère, Estimation paramètre, Paramètre, Utilisation, Produit alimentaire.
Wicri :
- topic : Organisme génétiquement modifié, Produit alimentaire.

English descriptors

KwdEn :
- Data analysis, Distribution, Foodstuff, Genetically modified organism, Method, Optical character recognition, Parameter, Parameter estimation, Sampling, Trace analysis, Use.

Abstract

In order to comply with the European Union regulatory threshold for the adventitious presence of genetically modified organisms (GMOs) in food and feed, it is important to trace GMOs from the field. Appropriate sampling methods are needed to accurately predict the presence of GMOs at the field level. A 2-year field experiment with two maize varieties differing in kernel colour was conducted in Slovenia. Based on the results of data mining analyses and modelling, it was concluded that spatial relations between the donor and receptor field were the most important factors influencing the distribution of outcrossing rate (OCR) in the field. The approach for estimation fitting function parameters in the receptor (non-GM) field at two distances from the donor (GM) field (10 and 25 m) for estimation of the OCR (GMO content) in the whole receptor field was developed. Different sampling schemes were tested; a systematic random scheme in rows was proposed to be applied for sampling at the two distances for the estimation of fitting function parameters for determination of OCR. The sampling approach had already been validated with some other OCR data and was practically applied in the 2009 harvest in Poland. The developed approach can be used for determination of the GMO presence at the field level and for making appropriate labelling decisions. The importance of this approach lies in its possibility to also address other threshold levels beside the currently prescribed labelling threshold of 0.9% for food and feed.

Affiliations:

Slovénie

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000176
to stream PascalFrancis, to step Curation: 000601
to stream PascalFrancis, to step Checkpoint: 000162
to stream Main, to step Merge: 000793
to stream Main, to step Curation: 000788

Le document en format XML

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<front><div type="abstract" xml:lang="en">In order to comply with the European Union regulatory threshold for the adventitious presence of genetically modified organisms (GMOs) in food and feed, it is important to trace GMOs from the field. Appropriate sampling methods are needed to accurately predict the presence of GMOs at the field level. A 2-year field experiment with two maize varieties differing in kernel colour was conducted in Slovenia. Based on the results of data mining analyses and modelling, it was concluded that spatial relations between the donor and receptor field were the most important factors influencing the distribution of outcrossing rate (OCR) in the field. The approach for estimation fitting function parameters in the receptor (non-GM) field at two distances from the donor (GM) field (10 and 25 m) for estimation of the OCR (GMO content) in the whole receptor field was developed. Different sampling schemes were tested; a systematic random scheme in rows was proposed to be applied for sampling at the two distances for the estimation of fitting function parameters for determination of OCR. The sampling approach had already been validated with some other OCR data and was practically applied in the 2009 harvest in Poland. The developed approach can be used for determination of the GMO presence at the field level and for making appropriate labelling decisions. The importance of this approach lies in its possibility to also address other threshold levels beside the currently prescribed labelling threshold of 0.9% for food and feed.</div>
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Development of sampling approaches for the determination of the presence of genetically modified organisms at the field level : GMO Analysis

Development of sampling approaches for the determination of the presence of genetically modified organisms at the field level : GMO Analysis

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri