Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2209
Title: Kinetic modelling of lactic acid production from whey by Lactobacillus casei (NRRL B-441)
Authors: Altıok, Duygu
Tokatlı, Figen
Harsa, Hayriye Şebnem
Keywords: Carboxylic acids
Kinetic modelling
Lactic acid
Lactobacillus casei
Whey
Issue Date: Jul-2006
Publisher: John Wiley and Sons Inc.
Source: Altıok, D., Tokatlı, F., and Harsa, H. Ş. (2006). Kinetic modelling of lactic acid production from whey by Lactobacillus casei (NRRL B-441). Journal of Chemical Technology and Biotechnology, 81(7), 1190-1197. doi:10.1002/jctb.1512
Abstract: The biomass growth, lactic acid production and lactose utilisation kinetics of lactic acid production from whey by Lactobacillus casei was studied. Batch fermentation experiments were performed at controlled pH and temperature with six different initial whey lactose concentrations (9-77 g dm-3) in a 3 dm3 working volume bioreactor. Biomass growth was well described by the logistic equation with a product inhibition term. In addition, biomass and product inhibition effects were defined with corresponding power terms, which enabled adjustment of the model for low- and high-substrate conditions. The Luedeking-Piret equation defined the product formation kinetics. Substrate consumption was explained by production rate and maintenance requirements. A maximum productivity of 2.5 g dm-3 h-1 was attained with an initial lactose concentration of 35.5 g dm-3.
URI: http://doi.org/10.1002/jctb.1512
http://hdl.handle.net/11147/2209
ISSN: 0268-2575
0268-2575
1097-4660
Appears in Collections:Food Engineering / Gıda Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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