Microbes in Human Welfare – Complete Notes on Antibiotics, Biofertilisers, Biogas, Sewage Treatment & Industrial Uses

These exam-ready notes explain the immense benefits of microbes across multiple fields—farming, energy, health, and biotechnology. With well-structured explanations and diagrams, the content includes: Microbes in food: Curd, bread, cheese, idli, dosa, toddy – and the microbes involved (Lactobacillus, yeast, Propionibacterium) Industrial products: Alcohol, acetic acid, citric acid, enzymes like pectinase and lipase Antibiotics & medicines: Discovery of Penicillin, production of cyclosporin A, statins, streptokinase Sewage treatment: BOD, activated sludge, aerobic and anaerobic digestion Biogas production: Role of methanogens like Methanobacterium, gobar gas plant design Biocontrol agents: Bt toxin, Trichoderma fungi, Baculoviruses – used in organic pest management Biofertilisers: Rhizobium, Azospirillum, mycorrhiza, cyanobacteria (Nostoc, Anabaena, Oscillatoria) Organic and sustainable agriculture: Reducing dependence on harmful chemical fertilizers and pesticides Perfect for students who want a complete grasp of microbial applications in modern biology and human welfare.