Role of Bacillus Species in Food Industry: Advantages and Limitations

Bacillus species have played a significant role in food safety and production throughout history. While some of these species have been widely used in culinary applications and fermentation, many lack scientific evidence to support their use. Integrating the Bacillus species into fermented food is a longstanding culinary tradition that reflects deeply rooted cultural customs and regional expertise. In traditional cuisines, these species contribute beneficial metabolites and distinctive flavors, adding a unique cultural dimension to the food. Asian fermented foods containing Bacillus species are recognized for their probiotic properties, which enhance food safety by preventing foodborne infections. Bacillus spores, such as B. subtilis, act as probiotics, although their mechanisms of action are not yet fully understood. Understanding the different Bacillus species is crucial for determining whether they function as probiotics or pathogens. The use of Bacillus in pharmaceuticals has positive effects on human health. Fermented products increase immunity, reduce bone loss, and alleviate allergies, thereby supporting the safety of the food and animal sector. Bacillus probiotics are incorporated into food products and supplements due to their health benefits. Additionally, Bacillus species are ecologically important for their ability to produce various enzymes and break down organic matter in the environment. Industrially, they have numerous applications, including synthesizing antibiotics, lipopeptides, extracellular polysaccharides, flavoring agents, and substantial quantities of proteins and enzymes. The Bacillus-fermented food sector is growing due to increased demand for non-dairy functional products. Progress in strain validation and regulation enables safe distinction between beneficial and harmful species.