Current issue
Archive
About the journal
Editorial board
Abstracting and indexing
Subscription
Contact
Instructions for authors
Publication charge
Ethical standards and procedures
Editorial System
Submit your Manuscript
|
4/2016
vol. 97 abstract:
RESEARCH PAPERS
In-house harmonization of quantitative PCR method validation to determine GM maize events
Magdalena Żurawska-Zajfert
1
,
Katarzyna Grelewska-Nowotko
1
,
Ewelina Żmijewska
1
,
Anna Linkiewicz
1
,
Jarosław Nowosielski
1
,
Janusz Zimny
1
,
Sławomir Sowa
1
BioTechnologia vol. 97(4) C pp. 305-313 C 2016
Online publish date: 2017/01/13
View
full text
Get citation
ENW EndNote
BIB JabRef, Mendeley
RIS Papers, Reference Manager, RefWorks, Zotero
AMA
APA
Chicago
Harvard
MLA
Vancouver
The validation of the methods for the detection and quantification of genetically modified organisms (GMOs) is required as a part of genetically modified food and feed authorization in the European Union (EU). Each validated method must meet the minimum performance requirements for GMO testing methods defined at the EU level. This ensures that the National Reference Laboratories (NRLs), which act as the official control laboratories, use reliable, precise, and robust GMO detection and quantification methods. The NRLs demonstrate their competence by obtaining and maintaining accreditation according to the ISO/IEC 17025 standard. The technical requirements of this standard, primarily related to the tests performed in the laboratory, include all factors that determine the required correctness and reliability of each implemented method. In the process of GMO authorization, applicants can submit any method that fulfills the validation criteria. In turn, the validated methods for the detection and
quantification of different GM events in the same species often vary regarding the reference gene assay and PCR conditions. This results in the need of multiple PCR analysis of samples with various GM events. Harmonization of the method validation parameters allows for the detection of different GM events in single PCR run, which simplify the routine laboratory work and decrease the costs of performed tests, therefore improving the efficiency of the official control of the EU market. This is particularly important as the number of authorized GMOs in EU for food and feed is continuously growing. In this study, we report successful quantitative real-time PCR method harmonization for 8 of the 10 GM maize events. keywords:
GMO, method validation, quantitative real-time PCR, ISO/IEC 17025, maize |