Microbial Ecology at the Nexus of Food Safety and Biotechnology With Ecological Mechanisms, Risks, and Emerging Innovations

Food systems are complex microbial ecosystems in which microorganisms play dual and often contrasting roles as agents of foodborne contamination and as essential drivers of food production and biotechnological innovation. Microbial ecology provides an integrative framework for understanding how microbial interactions, environmental conditions, and human interventions shape food safety outcomes and technological processes. This narrative integrative review is aimed at synthesizing current literature on microbial ecology at the nexus of food safety and food biotechnology and at identifying key research gaps and future directions. In this study, peer-reviewed journal articles addressing microbial interactions, contamination pathways, and ecological mechanisms relevant to food safety and biotechnology published between 2015 and 2025 were retrieved from major scientific databases and were synthesized using a narrative integrative approach. The review highlights ecological factors including microbial competition, stress adaptation, and biofilm formation across pre- and postharvest environments. At the same time, these same ecological principles are harnessed in food biotechnology to drive controlled fermentations, enhance shelf life through biopreservation, develop functional probiotics and enzymes, and engineer microbial systems via synthetic biology. Advances in high-throughput sequencing technologies, including whole genome sequencing, metagenomics, and multiomics integration, are identified as transformative tools for linking food-associated microbial community structure to functional outcomes. Despite significant progress, challenges remain in translating ecological insights into reliable industrial and regulatory practices due to microbial complexity, data integration limitations, and safety considerations. The review positions microbial ecology as a strategic framework for advancing food safety, biotechnological innovation, and sustainable food systems.