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• W2040771754 startingPage "5049" @default.
• W2040771754 abstract "The spectra processing step is crucial in metabolomics approaches, especially for proton NMR metabolomics profiling. During this step, noise reduction, baseline correction, peak alignment and reduction of the 1D 1H-NMR spectral data are required in order to allow biological information to be highlighted through further statistical analyses. Above all, data reduction (binning or bucketing) strongly impacts subsequent statistical data analysis and potential biomarker discovery. Here, we propose an efficient spectra processing method which also provides helpful support for compound identification using a new data reduction algorithm that produces relevant variables, called buckets. These buckets are the result of the extraction of all relevant peaks contained in the complex mixture spectra, rid of any non-significant signal. Taking advantage of the concentration variability of each compound in a series of samples and based on significant correlations that link these buckets together into clusters, the method further proposes automatic assignment of metabolites by matching these clusters with the spectra of reference compounds from the Human Metabolome Database or a home-made database. This new method is applied to a set of simulated 1H-NMR spectra to determine the effect of some processing parameters and, as a proof of concept, to a tomato 1H-NMR dataset to test its ability to recover the fruit extract compositions. The implementation code for both clustering and matching steps is available upon request to the corresponding author." @default.
• W2040771754 created "2016-06-24" @default.
• W2040771754 creator A5013271600 @default.
• W2040771754 creator A5069880922 @default.
• W2040771754 creator A5076592668 @default.
• W2040771754 date "2013-03-23" @default.
• W2040771754 modified "2023-09-24" @default.
• W2040771754 title "An efficient spectra processing method for metabolite identification from 1H-NMR metabolomics data" @default.
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• W2040771754 doi "https://doi.org/10.1007/s00216-013-6852-y" @default.
• W2040771754 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23525538" @default.
• W2040771754 hasPublicationYear "2013" @default.
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