Recovery of lactic acid from traditional market wastes fermentation broth

Irawaty, Wenny and Retnoningtyas, Ery Susiany and Wicaksana, Filicia and Wijaya, Ratia and Wijaya, Cynthia (2006) Recovery of lactic acid from traditional market wastes fermentation broth. In: CHEMECA 2007, 17-20 September 2006, Auckland, New Zealand.

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Abstract

This research was aimed to investigate the effect of temperature and water addition on lactic acid produced from fermentation using Lactobacillus plantarum. The effect of pH on lactic acid recovery from resin lRA-400 was also studied. The fresh organic wastes were collected from traditional market and then processed to be a media for fermentation. The vegetables wastes juice was sterilized, added nutrients and microorganisms. The mixtures were incubated at anaerobic condition at 30 and 40°C for 16 days. Following the fermentation process, the lactic acid in fermentation broth was recovered using resin at pH 2 and 5. The results showed that there was no significant difference in quantity of lactic acid recovered from resin at pH 2 and 5. Increasing temperature to 40oC increased the lactic acid produced. The highest concentration of lactic acid (0.6 g/lOO mL) was obtained from fermentation of pure vegetables juice at 40oC for 12 davs.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: lactic acid, recovery, IrA-400
Subjects: Engineering > Chemical Engineering
Divisions: Proceeding > Faculty of Engineering
Depositing User: Wenny Irawaty
Date Deposited: 30 Aug 2019 09:23
Last Modified: 30 Aug 2019 09:23
URI: http://repository.wima.ac.id/id/eprint/20009

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