Modelling folates reaction kinetics during cowpea seed germination in comparison with soaking

Coffigniez Fanny, Rychlik Michael, Mestres Christian, Striegel Lisa, Bohuon Philippe, Briffaz Aurélien. 2021. Modelling folates reaction kinetics during cowpea seed germination in comparison with soaking. Food Chemistry, 340:127960, 8 p.

https://doi.org/10.1016/j.foodchem.2020.127960

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Quartile : Q1, Sujet : CHEMISTRY, APPLIED / Quartile : Q1, Sujet : FOOD SCIENCE & TECHNOLOGY / Quartile : Q1, Sujet : NUTRITION & DIETETICS

Résumé : Folate is a fundamental vitamin for metabolism in plants and humans. A modelling approach has been developed to characterize the reactivity of folates in cowpea seeds during germination at 30 °C, using a water-to-seed ratio of 1:1 (w/w). For this purpose, the concentrations of folic acid, 10-formylfolic acid, 5-methyltetrahydrofolate, 5-formyltetrahydrofolate and tetrahydrofolate were determined in seeds during germination times up to 96 h. Two reaction models were sequentially built and adjusted to experimental data to describe changes in concentration in cowpea seed during two germination phases: before 14 h and after 48 h. Results showed intense enzymatic interconversion of all folate vitamers into 5-methyltetrahydrofolate before 14 h of germination and high enzymatic production of 5-methyltetrahydrofolate, 5-formyltetrahydrofolate and tetrahydrofolate after 48 h of germination. This study suggests that a long germination process could be more beneficial than soaking to increase the production of bioavailable folates within the seed for human consumption.

Mots-clés Agrovoc : acide folique, trempage, niébé, germination des graines, biodisponibilité, cinétique chimique

Mots-clés libres : Folates, Legume, Germination, Interconversion, Production

Agences de financement hors UE : Agence Nationale de la Recherche, Agropolis Fondation, Fondazione Cariplo, Fondation Daniel et Nina Carasso

Projets sur financement : (FRA) Agricultural Sciences for sustainable Development

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