Introduction to Microbiology
Maharashtra Board · Class 10 · Science
Quick revision notes for Introduction to Microbiology — Maharashtra Board Class 10 Science. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
Applied and Industrial Microbiology
- Applied microbiology studies enzymes, proteins, genetics, and molecular biology of prokaryotic and eukaryotic microbes for societal benefit
- Industrial microbiology focuses on commercial use of microbes for economic, social, and environmental processes
- Main features include fermentation-based production and microbial waste management
Dairy Products and Fermentation
- Milk preservation through fermentation creates yogurt, cheese, butter, and cream
- Lactobacilli bacteria convert lactose to lactic acid, causing protein coagulation
- Yogurt production uses Streptococcus thermophilus and Lactobacillus delbrueckii in 1:1 ratio
Bread, Beverages, and Fermented Products
- Bread production uses baker's yeast (Saccharomyces cerevisiae) for fermentation
- Yeast converts carbohydrates to CO₂ and ethanol, making bread spongy
- Vinegar is 4% acetic acid produced from ethanol fermentation
Industrial Enzymes and Organic Acids
- Microbial enzymes are eco-friendly alternatives to chemical catalysts
- Enzymes work at low temperature, pH, and pressure, saving energy
- Specific enzymes include oxidoreductases, transferases, hydrolases, lyases, isomerases, ligases
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