Kinetics of Lactic Acid Fermentation on Food Waste by Lactobacillus bulgaricus

Min Wang; Zhi Jun Xu; Tian Lei Qiu; Xiao Hong Sun; Mei Lin Han; Xu Ming Wang

doi:10.4028/www.scientific.net/AMR.113-116.1235

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Kinetics of Lactic Acid Fermentation on Food Waste by Lactobacillus bulgaricus
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Kinetics of Lactic Acid Fermentation on Food Waste by Lactobacillus bulgaricus

Abstract:

Lactic acid (LA) production from food waste (FW) is a novel recycling method for organic solid waste. In this study, 35.12g/L LA produced from non-autoclaved FW by Lactobacillus bulgaricus, with a volumetric productivity of 0.98g/(L•h). The kinetic model of lactic acid formation in the FW fermentation at 45 0C and pH 5.5-6.0 was established. A nonlinear parameter estimation procedure was used to obtain optimal kinetic model parameters.