Production of l-lactic acid from a green microalga, Hydrodictyon reticulum, by Lactobacillus paracasei LA104 isolated from the traditional Korean food, makgeolli

Bioresource Technology
Cuong Mai NguyenJin-Cheol Kim

Abstract

The freshwater microalga, Hydrodictyon reticulum, that contained 47.5% reducing sugars including 35% glucose was used as substrate for the production of l-lactic acid (LA) by LA-producing bacteria. Lactobacillus paracasei LA104 was selected for fermentation in a 5-l fermentor since it was able to grow at pH 3, 60g LA/l, 200g glucose/l, 125g NaCl/l, and 45°C and produced over 97.3% optically pure l-lactic acid with glucose as a substrate. Simultaneous saccharification and cofermentation from H. reticulum to l-LA using LA104 was investigated in a jar fermentor. The yield reached 46g/100g H. reticulum dry material, with a final concentration of 37.11g/l and a productivity of 1.03g/l/h. This is the first report of the production of l-LA from a microalga, and H. reticulum could be a potential feedstock for large-scale production of l-LA by LA104.

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Citations

Apr 30, 2013·Biotechnology Advances·Mohamed Ali Abdel-RahmanKenji Sonomoto
Aug 20, 2015·Critical Reviews in Biotechnology·Veeresh Juturu, Jin Chuan Wu
Apr 9, 2016·Water Research·Mi-Sun KimDong-Hoon Kim
Nov 19, 2013·Bioresource Technology·Cuong Mai NguyenJin-Cheol Kim
Aug 1, 2014·Journal of Bioscience and Bioengineering·Ying WangKenji Sonomoto
Nov 29, 2012·Bioresource Technology·Aleksandra P Djukić-VukovićJelena D Pejin
Aug 12, 2015·Critical Reviews in Biotechnology·Veeresh Juturu, Jin Chuan Wu
Oct 23, 2020·Heliyon·Elahe Abedi, Seyed Mohammad Bagher Hashemi
Jul 18, 2021·International Journal of Biological Macromolecules·Tiago Lima de AlbuquerqueMaria Valderez Ponte Rocha
Aug 21, 2021·Critical Reviews in Biotechnology·Ernesta AugustinieneNaglis Malys

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