“…This unquestionable preponderant role of colour in the acceptability of foods has therefore prompted for obvious reasons the realization in the last decades of a myriad of studies aimed at characterizing such attribute just as another quality parameter in diverse products (Meléndez-Martínez, Vicario, & Heredia, 2007a;Mínguez-Mosquera & Pérez-Gálvez, 1998). Likewise, much research has been carried out with the goal of assessing colour changes over ripening processes (Dufossé, Galaup, Carlet, Flamin, & Valla, 2005; Gómez-Ladrón de Guevara, Pardo-González, Varón-Castellanos, & Navarro-Albaladejo, 1996), industrial processing (Ayhan, Yeom, Zang, & Min, 2001;Chen, Peng, & Chen, 1995;Steet & Tong, 1996;Vivar-Quintana, González-Sanjosé, & Collado-Fernández, 1999), storage (Eiro & Heinonen, 2002;Ferrer, Alegria, Farre, Clemente, & Calvo, 2005;Goncalves et al, 2007;Lee & Coates, 2002), cooking (Dubois, Savage, & Martin, 2007;Moyano, Ríoseco, & González, 2002), etc. However, in recent years a growing and promising trend consisting on correlating pigments contents and/or other parameters directly related to them with colour coordinates through statistical models has been observed (Arias, Lee, Logendra, & Janes, 2000;Meléndez-Martínez, Vicario, & Heredia, 2003;Meléndez-Martínez et al, 2007a;Ronsholdt & McLean, 2001;Ruíz, Egea, Tomás-Barberán, & Gil, 2005).…”