4.7 Article

Predicting the reaction rates between flavonoids and methylglyoxal by combining molecular properties and machine learning

Journal

FOOD BIOSCIENCE
Volume 54, Issue -, Pages -

Publisher

ELSEVIER
DOI: 10.1016/j.fbio.2023.102890

Keywords

Dicarbonyl; Kinetics; Computational chemistry; Neural network; Data augmentation; Principal component regression

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The reaction kinetics between methylglyoxal (MGO) and epigallocatechin gallate were studied, and a model was developed to predict the trapping capacity of MGO based on the molecular properties of seven flavonoids. The model was created using synthetic minority oversampling technique and principal component regression (PCR) and back-propagation neural network algorithm. The PCR model based on the first six principle components showed high accuracy, with a root-mean-square error value of 8.02 x 10-7. This work provides quantitative structure-activity models for rapid and accurate prediction of the trapping rate constant of MGO by flavonoids.
The kinetics of the reaction between methylglyoxal (MGO) and epigallocatechin gallate have been investigated at pH 7.4 and 37 degrees C, and the kinetic data were combined with previously obtained data of six other flavonoids to develop a model that allows to predict the trapping capacity of MGO based on the molecular properties of the seven flavonoids. The observed data were augmented by using synthetic minority oversampling technique forming a new data set that was used to create the predicting models for the trapping rate constant of MGO by flavonoids via principal component regression (PCR) and back-propagation neural network algorithm, respec-tively. The PCR model based on the first six principle components was robust and accurate comparing other created models, with an associated root-mean-square error value of 8.02 x 10-7 on the testing set. This work provides quantitative structure-activity models for rapid and accurate prediction of the trapping rate constant of MGO by flavonoids.

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