THE EFFECT OF DIFFERENT TYPES OF SUGAR ONBACTERIAL GROWTH RATE: A REVIEW

Abstract

The proliferation of bacteria is significantly influenced by the sources and characteristics of carbon sources, with carbohydrates serving as essential nutrients for many organisms. The prioritisation of carbohydrate use, driven by carbon catabolite repression mechanisms, is essential for diauxic or multiaxial growth in the presence of multiple carbohydrates. Escherichia coli exhibits diauxic growth on glucose and lactose, whereas specific Bifidobacterium species utilise carbohydrates with more complex structures and exhibit multiphase growth kinetics. The sugar's structure affects growth rate and yield. Monosaccharides like Glucose and fructose are easier for bacteria to use, so they usually grow more quickly than polysaccharides like cellulose or inulin. These polysaccharides have more complex structures and require a range of depolymerising and hydrolytic enzymes to break them down into the appropriate mono- and oligosaccharides for the bacteria. The specific metabolic end products of bacterial activity during carbohydrate fermentation determine how acidic the environment becomes. This is very important for keeping food safe, maintaining gut health, and for use in industry. It is crucial to understand how carbohydrate structures affect bacterial growth, as this knowledge could be useful for making food, medicine, biofuels, and specialised microbial communities in basic and applied research.