Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

→ Many products which are useful for mankind are produced by microbes on industrial level. For example: beverages, antibiotics, chemicals, enzymes and other biochemical molecules.
→ Saccharomyses cerevisiae Yeast is used to prepare wine, beer, whiskey, brandy or rum like beverages and also used for bread making. Saccharomyses cerevisiae (brewer's) yeast is used to produce ethanol from cereals and fruit juices.
→ Antibiotics are chemical substances which are produced by microbes. They kill pathogenic microbes or slow down their growth. For
example: penicillin
→ We cannot imagine a world without antibiotics. Microbes are also used for commercial and industrial production of certain chemicals like organic acids, alcohols and enzymes.
Examples:
Aspergillus niger- citric acid
Acetobacter aceti acetic acid
Clostridium butyricum- butyric acid