Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Morning Antioxidants: Molecular Insights on the Chemistry of Coffee Components

Version 1 : Received: 28 June 2023 / Approved: 29 June 2023 / Online: 29 June 2023 (11:52:30 CEST)

A peer-reviewed article of this Preprint also exists.

Luis Felipe Hernández-Ayala, Eduardo Gabriel Guzmán-López, Adriana Pérez-González,Miguel Reina, Annia Galano.  Molecular Insights on Coffee Components as Chemical Antioxidants. J. Mex. Chem. Soc.2024, 68(4). DOI: http://dx.doi.org/10.29356/jmcs.v68i4.2238 Luis Felipe Hernández-Ayala, Eduardo Gabriel Guzmán-López, Adriana Pérez-González,Miguel Reina, Annia Galano.  Molecular Insights on Coffee Components as Chemical Antioxidants. J. Mex. Chem. Soc.2024, 68(4). DOI: http://dx.doi.org/10.29356/jmcs.v68i4.2238

Abstract

Coffee is not only a delicious beverage but also an important dietary source of natural antioxidants. We live in an oxidative world where it is impossible to avoid pollution, stress, food additives, radiation, and other sources of oxidants that eventually lead to severe health disorders. Fortunately, there are chemicals in our diet that counteract the hazards posed by the reactive species that trigger oxidative stress. They are usually referred to as antioxidants; some of them can be versatile compounds that exert such a role in various ways. This review summarizes, from a chemical point of view, the antioxidant effects of relevant molecules found in coffee. Their ways of action and trends in activity are analyzed, considering the data gathered so far from both theory and experiments. The influence of the media and pH in aqueous solution, and structure-activity relationships are discussed. The protective role of the explored compounds is examined. A particular section is devoted to derivatives of some coffee components, and another one to their bioactivity. The data used in the analysis come from theoretical anc computational protocols, which have been proven to be very usefull in this context. Hopefully, the information provided here will promote further investigations into the amazing chemistry contained in our morning cup.

Keywords

free radicals; scavengers; reaction mechanisms; kinetics; trends in activity; coffee components

Subject

Chemistry and Materials Science, Food Chemistry

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