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On‐line optimisation of culture temperature for ethanol fermentation using a genetic algorithm
Author(s) -
Moriyama Hiroyuki,
Shimizu Kazuyuki
Publication year - 1996
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199607)66:3<217::aid-jctb482>3.0.co;2-a
Subject(s) - fermentation , ethanol , line (geometry) , computation , genetic algorithm , ethanol fermentation , constant (computer programming) , temperature control , algorithm , chemistry , mathematics , computer science , biological system , mathematical optimization , engineering , biochemistry , biology , control engineering , geometry , programming language
The genetic algorithm (GA) was applied for on‐line determination of the optimal temperature profile for ethanol fermentation. The optimisation was made by maximising the final ethanol concentration with respect to culture temperature. The effectiveness of the algorithm was examined by on‐line measurements of ethanol and cell concentrations. Two computers were employed: one for monitoring, control and data processing, the other for the GA computation. A 14% increase in productivity was achieved by this method compared with the conventional constant‐temperature fermentation.