Thursday, May 28, 2020

Upstream & Downstream processing in fermentation

      UPSTREAM &DOWNSTREAM  PROCESSING 

  1. Upstream processing ;The upstream processing in bio-process or fermentation  involves identifying and extracting the raw materials. This forms the initial process of fermentation.
     upstream process- following steps 

     • Inoculate preparation which includes screening or microorganisms and selection          of suitable strain and genetic modification of the organism if needed

    • Preparation of culture media having suitable growth parameters at laboratory          

     • Scale up of the entire process. 

  •  Inoculation
2.Downstream processing ; when products are subjected to forms in the bioreactor including separation, purification it is also known as downstream processing 

Downstream processing -following steps 

• Solid-liquid separation • Release of intracellular  products 

• Concentration • Purification • Formulation

Upstream & downstream process of 

  • Antibiotics 
  • Hormones 
  • Vaccines 

Antibiotics;It is a chemical drugs used to treat bacterial infections. 

A medicine (such as penicillin or its derivatives) that inhibits the growth of or               destroys microorganisms. 
Originally, an antibiotic was a substance produced by one microorganism that                selectively inhibits the growth of another.  
Example : penicillin, streptomycin

Hormones;A chemical substance produced in the body that controls and regulates the activity of certain cells or organs.

 it act like messenger molecules in the body. 

It is carried out by blood.

Hormones are essential for every activity of life, including the processes of digestion, metabolism, growth, reproduction, and mood control. 

Example: thyroid hormone,insulin.

Vaccines-A vaccine is a biological preparation that improves immunity to a particular disease.

a preparation of killed microorganisms, living attenuated organisms, or living fully virulent organisms that is administered to produce or artificially increase immunity to a particular diseases. 
 Example: Diphtheria vaccine, Polio vaccine, 

  • Upstream process


  • Fermentation 
  • Downstream process 




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