Characterization of Volatile Compounds in Traditional Mexican Cocoa-Based Beverages and Their Application in Flavored Milks

Traditional Mexican non-alcoholic, cocoa-based beverages are a relevant part of the gastronomy of the country. This study aimed to identify the volatile compound profile of three traditional beverages from Mexican gastronomy, including Pozol, Chilate, and Cacahuatole, and evaluate the acceptability of milks incorporating their traditional flavors. Chemical composition was determined, and volatile compounds were analyzed using gas chromatography–mass spectrometry (GC-MS). The results showed the Mexican beverages are rich in carbohydrates (70.3–78.2% d.b.), proteins (9.3–16% d.b.), and fat (8.8–11.7% d.b.) due to corn, rice, broad beans, and cocoa ingredients. GC revealed volatile profiles, with Pozol containing 148, Chilate 104, and Cacahuatole 109 compounds, mainly terpenes, pyrazines, aldehydes, and phenolics. Nixtamalization, cocoa roasting, and ingredient variations influenced the volatile composition and sensory attributes. Multivariate analysis distinguished the beverages based on their volatile composition, revealing ingredient-dependent variations. Artificial flavors replicating these profiles were developed and incorporated into milks, which were evaluated by a trained sensory panel using the Check-All-That-Apply (CATA) method. Sensory analysis confirmed that key aromatic compounds contributed to flavor perception. This work identified for the first time the volatile compounds of traditional Mexican cocoa-based beverages, namely, Pozol, Chilate, and Cacahuatole, and provides insight into the role of traditional preparation methods in the development of flavor profiles. On the other hand, this study highlights the potential for incorporating traditional Mexican beverage flavors into commercial milk for novel product development.