Microbes in human welfare
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MICROBES IN HUMAN WELFARE
By:Shari K S
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DEFINITION
Living organism (such as bacteria, fungi, viruses) too small to be
seen with naked eye but visibleunder a microscope.
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DERIVATION OF MICROBES
Greek words:
Micros Small +
Organismos Organism
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FATHER OF MICROBIOLOGY
Anton van leeuwenhoek
Discovered microbes in 1675
Devised first microscope
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Micro organisms
Bacteria Fungi Virus Microscopic plants (Green algae) Microscopic animals (Rotifers &
Planarians)
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Microbes in household products
Lactobacillus
Production of curd from milk
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Microbes in household products
Saccharomyces cerevisiae
Used for making bread
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Microbes in household products
Propionibacterium
Production of swiss cheese.
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Microbes in industrial products
Yeast
Production of beverages like wine, beer, whisky, brandy & rum
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Microbes in industrial products
Brewer’s yeast
Used for production of ethanol by fermenting malted cereals & fruit juices
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Antibiotics
Penicillium notatum
Inhibits growth of Staphaylo cocci
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BIOACTIVE MOLECULES
Streptococcus
Production of Streptokinase
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BIOACTIVE MOLECULES
Trichoderma polysporm
Production of Cyclosporin
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BIOACTIVE MOLECULES
Monascus purpureus
Production of statins
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biofertilisers
Rhizobium
Fixes atmospheric nitrogen into organic forms.
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biofertilisers
Mycorrhiza
Absorbs phosphorus from soil & passes it to plants.
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biofertilisers
Cyanobacteria
Fix atmospheric nitrogen