Introduction and Overview

Fermented foods have long been integral to African culinary and cultural traditions, serving as essential means of nutrition enrichment, flavour development and food preservation. This work provides an overview of the historical evolution, cultural relevance and microbiological foundations of African fermented foods, emphasising the roles of lactic acid, alkaline and alcoholic fermentations. The key microorganisms in these fermentations are the lactic acid bacteria (LAB), Bacillus species and yeasts, each contributing to the sensory and nutritional profiles of the final products. These microorganisms improve the digestibility, nutrition and shelf life of foods by producing enzymes and organic acids that improve food safety. The diverse African fermented foods, such as amasi , dawadawa, injera, ogi , mahewu and zabady , and the complex microbial ecosystems underlying traditional fermentation processes illustrate a rich microbial diversity which could be associated with region-specific practices. This chapter introduces significant indigenous fermentation practices within the African purview used to enhance nutritional quality and food safety. The various chapters of this book provide an intricate exploration of the microbiology of African fermented foods for sustaining traditional food systems, unlocking potentials in addressing food security, health and dietary diversity.