Effect of yeast extract concentration on lactate production

Rubena Malfia, Binti Kamaldin. (2004) Effect of yeast extract concentration on lactate production. [E-LPTA] (Unpublished)

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Abstract

In this study, the effects of east extract at different concentration (0 giL, 2g1L, 5g1L, and 10gIL) was examined for the production of lactate by Lactococcus lactis 10-1. The batch fermentation processes was conducted at initial pH6, temperature of 370 C and agitate at 200 rpm. The pH was uncontrolled throughout the study. The fermentation was carried out using the shake flasks. From the result obtained, there is not much different on lactate concentration at different yeast extract concentration. However, at 0 giL yeast extract concentration, the fermentation efficiency was 45.45% higher compared to at 2g1L yeast extract concentration which was 38.92%, at 5g1L yeast extract concentration was 36.66% and at 10 giL yeast extract was 22.57%. Overall, when concentration of yeast extract is lower, it will result in higher residual glucose, thus needed longer period for complete consumption.

Item Type: E-LPTA
Additional Information: Project report (BSc.) - Universiti Malaysia Sarawak, 2004
Uncontrolled Keywords: yeast extract, batch fermentation, difference concentration, shake flasks, lactate concentration, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak
Subjects: Q Science > QR Microbiology
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Saman
Date Deposited: 12 Dec 2017 02:33
Last Modified: 12 Dec 2017 02:33
URI: http://ir.unimas.my/id/eprint/18922

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