Economic Importance of Bacteria

The bacteria are generally looked upon as enemies of man, for many of them are responsible for spoiling of our food and drink, and causing diseases like tuberculosis, tetanus,diphtheria and and cholera. They are of prime importance of mankind since they exert both deleterious and beneficial effects upon human life.
Bacteria as Decomposers
Soil fertility
  • Nitrifying bacteria –Nitrosomonas Nitrobacter
  • Ammonifying bacteria
  • Nitrogen fixing type of bacteria-Rhizobium leguminosarum, Clostridium & Azotobacter
Food that use bacteria in their production include
  • Soy sauce-Pediococcus species
  • Cheese-Lactobacillus
  • Vinegar-Acinetobacter species
Bacteria in various industries
Fibre retting
  • Clostridium felsineum & Clostridium pectinovorum
Industrial production of organic compound
  • Acetone & Isopropanol-Clostridium species
  • Acrylic acid & Proplene Glycol- Bacillus species
Bacteria in dairy products
  • Lactic acid bacteria
Bacteria in the production of vitamins
  • Riboflavin (Vitamin B) - Clostridium butylicum
  • Cobalamine (Vitamin B12) -Pseudomonas denitrificans
Bacteria in the production of antibiotics
  • Bacitracin- Bacillus subtilis
  • Aureomycin – Streptomyces species
  • Terramycin – Streptomyces rimosus
  • Streptomycin-Streptomyces griseus
Bacteria in the production of enzymes
  • Streptokinase-Streptococcus pyogenes
  • Proteokinase- Bacillus subtilis
  • Amylase-Bacillus species
Bacteria in the production of Steroids
  • Cornyebacterium & Streptomyces 
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