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Cocoa fermentation is a critical step in chocolate production, influencing the flavor, aroma, and overall quality of the final product. This review focuses on the microbial dynamics of cocoa fermentation, emphasizing the roles of yeasts, lactic acid bacteria (LAB), and acetic acid bacteria (AAB). These microorganisms interact in a well-defined succession, producing organoleptic compounds such as alcohols, organic acids, and esters, which are key to the sensory profile of cocoa. This article examines the impact of different fermentation methods, including spontaneous fermentation and the use of starter cultures, on microbial communities and flavor development. Advances in starter culture technology are highlighted, demonstrating how microbial control can enhance fermentation efficiency, reduce fermentation time, and improve the consistency of chocolate flavor. Patents related to cocoa fermentation further emphasize the growing interest in microbial management to meet market demands for high-quality, distinct chocolate. This review also outlines future research directions, including the identification of new microbial strains, optimization of fermentation conditions, and the potential of biotechnological advancements to improve the fermentation process. Understanding microbial dynamics in cocoa fermentation offers significant potential for enhancing chocolate quality, sustainability, and the development of new, region-specific flavor profiles.
Campos et al. (Wed,) studied this question.