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.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Nguyen CM,Kim JS,Hwang HJ,Park MS,Choi GJ,Choi YH,Jang KS,Kim JCdoi
10.1016/j.biortech.2012.01.079subject
Has Abstractpub_date
2012-04-01 00:00:00pages
552-9eissn
0960-8524issn
1873-2976pii
S0960-8524(12)00102-2journal_volume
110pub_type
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