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Provedor de dados:  Organic Eprints
País:  Germany
Título:  Discrimination of conventional and organic white cabbage from a long-term field trial study using untargeted LC-MS-based metabolomics
Autores:  Mie, Axel
Laursen, Kristian Holst
Aberg, K Magnus
Forshed, Jenny
Lindahl, Anna
Thorup-Kristensen, Kristian
Olsson, Marie
Knuthsen, Pia
Larsen, Erik Huusfeldt
Husted, Søren
Data:  2014-03-12
Ano:  2014
Palavras-chave:  Farming Systems Food security
Food quality and human health Crop husbandry Crop health
Quality
Protection Farm nutrient management
Resumo:  The influence of organic and conventional farming practices on the content of single nutrients in plants is disputed in the scientific literature. Here, large-scale untargeted LC-MS-based metabolomics was used to compare the composition of white cabbage from organic and conventional agriculture, measuring 1,600 compounds. Cabbage was sampled in 2 years from one conventional and two organic farming systems in a rigidly controlled long-term field trial in Denmark. Using Orthogonal Projection to Latent Structures-Discriminant Analysis (OPLS-DA), we found that the production system leaves a significant (p = 0.013) imprint in the white cabbage metabolome that is retained between production years. We externally validated this finding by predicting the production system of samples from one year using a classification model built on samples from the other year, with a correct classification in 83 % of cases. Thus, it was concluded that the investigated conventional and organic management practices have a systematic impact on the metabolome of white cabbage. This emphasizes the potential of untargeted metabolomics for authenticity testing of organic plant products.
Tipo:  Journal paper
Identificador:  http://orgprints.org/25578/1/Mie%202014%20Discrimination%20of%20conventional%20and%20organic%20white%20cabbage%20froma%20long-term%20field%20trial%20study%20using%20untargeted%20LC-MS-based%20metabolomics.pdf

Mie, Axel; Laursen, Kristian Holst; Aberg, K Magnus; Forshed, Jenny; Lindahl, Anna; Thorup-Kristensen, Kristian; Olsson, Marie; Knuthsen, Pia; Larsen, Erik Huusfeldt and Husted, Søren (2014) Discrimination of conventional and organic white cabbage from a long-term field trial study using untargeted LC-MS-based metabolomics. Analytical and bioanalytical chemistry, 406, pp. 1-13. [In Press]
Relação:  http://orgprints.org/25578/
Formato:  application/pdf
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