 Fermentation is a chemical change brought on by the action of microscopic yeast, molds and bacteria. The souring of milk, the rising of dough and the conversion of sugar to alcohol are all examples of fermentation. *  * tion.htmlhttp:// tion.html

 An apparatus, such as a large fermentation chamber, for growing organisms such as bacteria or yeast that are used in the biotechnological production of substances such as pharmaceuticals, antibodies, or vaccines, or for the bioconversion of organic waste.* * r#ixzz1b8QNn1wPhttp:// r#ixzz1b8QNn1wP

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 Conversion of organic waste such as compost or solid waste  To promote growth(production of cultures)  To speed up a breakdown process  Cultivation of a special fungi utilized in pharmaceuticals.

 Enzymes bioreactors are reactors in which enzymatic reactions are carried out. Since enzymatic reactions require carefully maintained pH, temperature and substrate level conditions, these bioreactors are equipped with the appropriate instrumentation that allow the operator to monitor all these conditions and ensure timely completion of the reaction to obtain the desired product. me_bioreactors#ixzz1bUuqTcjbhttp://wiki.answers.com/Q/What_are_enzy me_bioreactors#ixzz1bUuqTcjb