Lactic acid fermentation in alkaline conditions using enterococcus faecalis

Yeoh,, Hui Di (2013) Lactic acid fermentation in alkaline conditions using enterococcus faecalis. [Final Year Project Report] (Unpublished)

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Enterococcus faecalis was used to perform lactic acid fermentation (LAF) in hydrolyzed sago starch (HSS). LAF was studied in alkaline condition which was pH 8 using batch fermentation (BF) modes. From the study, this bacteria can considered as thermo tolerant due to its ability to growth well at 37°C and up to 48 °C and survive at pH 8. BF mode using HSS was performed to study the efficiency in productivity in LAF. The fermentation was performed in 3 L jar fermenter with a working volume of 2 L using HSS and yeast extract as carbon and nitrogen sources respectively. In addition, the kinetics of lactic acid production, glucose consumption, and NaOH consumption for each fermentation were analyzed during the BF. The highest LA production in the fermentation process was 92.52 g/L, with the conversion at range of 92%. Therefore, we can conclude that this isolated strain has potential to be used for industrial application in LA production.

Item Type: Final Year Project Report
Additional Information: Universiti Malaysia Sarawak, (UNIMAS)
Uncontrolled Keywords: Enterococcus faecalis, lactic acid, lactic acid fermentation, alkaline condition, FSTS, 2013, Universiti Malaysia Sarawak, UNIMAS, universiti, university, Borneo, Malaysia, Sarawak, Kuching, Samarahan, IPTA, education, undergraduate, research
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Faculties, Institutes, Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 09 Jun 2014 03:33
Last Modified: 14 Mar 2024 07:21

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