Journal
3RD INTERNATIONAL CONFERENCE ON BIOTECHNOLOGY AND FOOD SCIENCE (ICBFS 2012)
Volume 2, Issue -, Pages 97-103Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcbee.2012.06.018
Keywords
Lactobacillus plantarum SW14; Lactic acid; Cassava starch; Dilution rate; Continuous culture; High cell density
Funding
- Human Resource Development in Science Project
- Grants-in-Aid for Scientific Research [12F02088] Funding Source: KAKEN
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The conventional continuous fermentation and continuous with high cell density for lactic acid production from cassava starch by Lactobacillus plantarum SW14 was investigated. In conventional continuous fermentation, lactic acid productivity increased while the acid concentration decreased with increasing dilution rate. The highest lactic acid productivity of 4.53 gl(-1)h(-1) was observed at a dilution rate of 0.4 h(-1), which was 4.7 time higher than batch fermentation. A further increase in lactic acid productivity was observed in a continuous with high cell density and reached 8.0 gl(-1)h(-1), which were equal to 8 and 1.8 times compared to batch and conventional continuous mode, respectively. These results indicated that L. plantarum SW14 has a potential for lactic acid production directly from cassava starch when continuous mode was applied with high cell density and operated at high dilution rate. (C) 2012 Published by Elsevier B.V. Selection and/or peer review under responsibility of Asia-Pacific Chemical, Biological & Environmental Engineering Society
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