Microbes in Human Welfare

Microbes in Household Products

Microorganisms like Lactobacillus (LAB) convert milk into curd by producing acids that coagulate and partially digest milk proteins, while Saccharomyces cerevisiae (baker's yeast) is used to ferment dough for bread and dosa.

Microbes in Industrial Production

Industrially, microbes are grown in large vessels called fermenters to produce valuable products such as alcoholic beverages (using brewer's yeast), antibiotics like penicillin (from Penicillium notatum), and bioactive molecules like statins and cyclosporin A.

Microbes in Sewage Treatment

Municipal waste water is treated in Sewage Treatment Plants (STPs) using aerobic and anaerobic microbes in primary and secondary treatment stages to significantly reduce the Biological Oxygen Demand (BOD) before releasing it into natural water bodies.

Microbes as Biocontrol Agents

Microbes are used to control plant pests and diseases organically; for example, the bacterium Bacillus thuringiensis provides toxin crystals that kill specific insect pests without harming non-target organisms.

Microbes as Biofertilizers

Certain microbes like Rhizobium, Azospirillum, and Mycorrhiza enrich the nutrient quality of the soil by fixing atmospheric nitrogen or forming symbiotic associations with plant roots to absorb phosphorus.