Data sharing in PredRet for accurate prediction of retention time: Application to plant food bioactive compounds
Research output: Contribution to journal › Journal article › Research › peer-review
- Low et al_Food Chemistry_2021_Vol 357_e129757
Final published version, 2.24 MB, PDF document
Prediction of retention times (RTs) is increasingly considered in untargeted metabolomics to complement MS/MS matching for annotation of unidentified peaks. We tested the performance of PredRet (http://predret.org/) to predict RTs for plant food bioactive metabolites in a data sharing initiative containing entry sets of 29–103 compounds (totalling 467 compounds, >30 families) across 24 chromatographic systems (CSs). Between 27 and 667 predictions were obtained with a median prediction error of 0.03–0.76 min and interval width of 0.33–8.78 min. An external validation test of eight CSs showed high prediction accuracy. RT prediction was dependent on shape and type of LC gradient, and number of commonly measured compounds. Our study highlights PredRet’s accuracy and ability to transpose RT data acquired from one CS to another CS. We recommend extensive RT data sharing in PredRet by the community interested in plant food bioactive metabolites to achieve a powerful community-driven open-access tool for metabolomics annotation.
|Number of pages||10|
|Publication status||E-pub ahead of print - 9 Apr 2021|
- Faculty of Science - Predicted retention time, Metabolomics, Plant food bioactive compounds, Metabolites, Data sharing, PredRet, UHPLC