OPTIMISATION OF OPERATING CONDITIONS IN FED-BATCH BAKER'S YEAST FERMENTATION
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Technical Univ Wroclaw
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Saccharamyces cerevisia known as baker's yeast is a product used in various food industries. Worldwide economic competition makes it a necessity that industrial processes be operated in optimum conditions, thus maximisation of biomass in production of saccharamyces cerevisia in fed-batch reactors has gained importance. The facts that the dynamic fermentation model must be considered as a constraint in the optimisation problem, and dynamics involved are complicated, make optimisation of fed-batch processes more difficult. In this work, the amount of biomass in the production of baker's yeast in fed-batch fermenters was intended to be maximised while minimising unwanted alcohol formation, by regulating substrate and air feed rates. This multiobjective problem has been tackled earlier only from the point of view of finding optimum substrate rate, but no account of air feed rate profiles has been provided. Control vector parameterisation approach was applied the original dynamic optimisation problem which was converted into a NLP problem. Then SQP was used for solving the dynamic optimisation problem. The results demonstrate that optimum substrate and air feeding profiles can be obtained by the proposed optimisation algorithm to achieve the two conflicting goals of maximising biomass and minimising alcohol formation.
Açıklama
Anahtar Kelimeler
fed-batch fermenters, baker's yeast, dynamic optimisation, SQP, nonlinear programming
Kaynak
Chemical and Process Engineering-Inzynieria Chemiczna I Procesowa
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
34
Sayı
1
