Alcoholic fermentations, immobilized systems

Alcoholic fermentations, immobilized systems and aqueous two-phase systems, 80... 

Much effort has gone, in recent years, in setting up alcoholic fermentations based on immobilized cell technology (J)). Some of the systems have proved to be highly productive, but are faced with drawbacks of leakage of cells, and sterical hindrances. Fermentation in two-phase system, on the other hand, has been successfully carried out with macromolecular substrates such as starch and cellulose (7 10 ). It is also easier to control a reaction system involving a number of enzymes, in a two-phase system as compared to the immobilized systems for example, there is a possibility to add more of the labile catalyst during the continuous operations. 

The use of immobilized cell systems is applicable to all fermentation schemes and is being researched extensively for the production of alcohols, chemicals, and biological products. 

Aaron R.T., Davis R.C., Hamdy M.K. and Toledo R.T. Continuous alcohol/malolactic fermentation of grape must in a bioreactor system using immobilized cells. Journal of Rapid Methods and Automation in Microbiology 12 (2) (2004) 127-148. 

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