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INDUSTRIAL MICROBIOLOGY (INDUSTRIAL MICROORGANISMS AND PRODUCT FORMATION…
INDUSTRIAL MICROBIOLOGY
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PRODUCTS FOR THE FOOD
Antimicrobial
1) Germicidal - Kills microbes
2) Bacteriocidal - Kills bacteria
3) Bacteriostatic - Stops bacterial growth
4) Sporicidal - Kills bacterials endospores and fungal
spores
5) Fungicidal - Kills yeasts and molds
• Antibiotic
Isolation, characterization (search for new antibiotics),
purification and increasing the yield
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Enzymes technology
A wide range of enzymes are excreted by fungi - play an
important role in the breakdown of organic materials - Most are used in food processing
• Penicillins
The penicillins are a class of β- Lactam antibiotics
Produced by fungi of the genera Penicillium and Aspergillus
Commercially: Penicillium chrysogenum
Other β- Lactam antibiotics: Cephalosporium acremonium
Tetracyclines
Large number of enzymes steps
Streptomyces aureofaciens, the producing organisms in the
chlortetracycline fermentation
Vitamins
For industrial production of vitamin B12 – bacteria
Propionibacterium freudenreichii and Pseudomonas
Riboflavin – Ashbya gossypii
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Steroids and other biotransformation
Production of hydrocortisone and cortisone, cortisteroids used to
reduce swelling and itching from minor skin irritations, the fungus
Rhizopus nigricans carries out a key biotransformation
