“…Many articles have been published in the literature about the determination of and/or the changes produced in the different types of polyphenols and methylxanthines among several distinct cocoa products (Gabbay Alves et al, 2017;Machonis, Jones, Schaneberg, Kwik-Uribe, & Dowell, 2014;Manzano et al, 2017;Risner, 2008), in cocoa processing steps (Elwers, Zambrano, Rohsius, & Lieberei, 2009;Lacueva et al, 2008;Li et al, 2012Li et al, , 2014Miller et al, 2008;Payne, Hurst, Miller, Rank, & Stuart, 2010;Pedan, Fischer, Bernath, Hühn, & Rohn, 2017;Quiroz-Reyes & Fogliano, 2018), among different cocoa clones or varieties (Elwers et al, 2009;Niemenak, Rohsius, Elwers, Omokolo Ndoumou, & Lieberei, 2006), and so forth. Therefore, some of these studies are reviewed below.…”