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Neue Analysemethoden und ihre Anwendungsmöglichkeiten für die Qualitätssicherung und Kontrolle Organic Eprints
Boner, Markus; Bonte, Anja; Hermanowski, Robert; Hofem, Sabine; Huber, Beate; Landau, Bettina; Langenkämper, Georg; Mäder, Rolf; Mende, Gudrun; Neuendorff , Jochen; Niehaus, Karsten; Stolz, Peter.
Drei Methoden zur Rückverfolgung und Unterscheidung von ökologischen und konventionellen Produkten werden bewertet. Es soll beurteilt werden, ob und wie diese Methoden in der Qualitätssicherung und im Kontrollsystem eingesetzt werden können, um die ökologische Qualität eines Produktes zu überprüfen. Die zu beurteilenden Methoden sind die Isotopenmassenspektrometrie (IRMS), die Fluoreszenz-Anregungs-Spektroskopie (FAS) und Profiling-Techniken. Die beiden letztgenannten Methoden zeigen erste vielversprechende Ergebnisse für die Beurteilung der Echtheit von Bio-Produkten. Bislang hat jedoch nur die Isotopenmassenspektroskopie das Potenzial, ein wichtiges Instrument im Qualitätssicherungs- und Kontrollsystem zu werden, indem sie Rückschlüsse auf die...
Tipo: Conference paper, poster, etc. Palavras-chave: Food security; Food quality and human health.
Ano: 2011 URL: http://orgprints.org/17573/3/Boner_17573.pdf
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Einsatz von Protein- und Metabolit-Profiling-Methoden zur Unterscheidung von ökologischem und konventionellem Weizen Organic Eprints
Bonte, Anja; Kessler, Nikolas; Nattkemper, Tim; Goesmann, Alexander; Thonar, Cécile; Mäder, Paul; Niehaus, Karsten; Langenkämper, Georg.
The interest in methods to proof organic food authenticity increases with the steadily rising popularity of food labelled organic. Profiling techniques enable the detection of a wide range of substances in biological samples. Together with bioinformatics tools these techniques are useful for biomarker searching, e. g. in plant extracts. Metabolomic and proteomic profiling techniques were used to screen organic and conventional wheat, originating from the DOK field trial in Switzerland. Up to 11 wheat varieties from three harvest years were analysed. We were able to detect a number of metabolites and proteins with significant differences between samples of conventional and organic grown wheat of the variety “Runal”. Results viewed across all 11 varieties...
Tipo: Conference paper, poster, etc. Palavras-chave: Indicators and other value-laden measures Food security; Food quality and human health.
Ano: 2013 URL: http://orgprints.org/21336/1/21336_langenk%C3%A4mper.pdf
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Metabolite profiling on wheat grain to enable a distinction of samples from organic and conventional farming systems Organic Eprints
Bonte, Anja; Neuweger, Heiko; Goesmann, Alexander; Thonar, Cécile; Mäder, Paul; Langenkämper, Georg; Niehaus, Karsten.
Identification of biomarkers capable of distinguishing organic and conventional products would be highly welcome to improve the strength of food quality assurance. Metabolite profiling was used for biomarker search in organic and conventional wheat grain (Triticum aestivum L.) of 11 different old and new bread wheat cultivars grown in the DOK system comparison trial. Metabolites were extracted usingmethanol and analysed by gas chromatography–mass spectrometry.
Tipo: Journal paper Palavras-chave: Cereals; Pulses and oilseeds.
Ano: 2014 URL: http://orgprints.org/25739/1/bonteetal2014.pdf
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