Comparison of Trophic Modes to Maximize Biomass and Lipid Productivity of Micractinium inermum NLP-F014

An optimum trophic mode condition was investigated to maximize biomass and lipid productivity of Micractinium inermum NLP-F014, which grown successfully in blended wastewater medium. In this study, four trophic modes were used, including photoautotrophic, photoheterotrophic, heterotrophic and mixotr...

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Published in:Biotechnology and bioprocess engineering 2018, 23(2), , pp.238-245
Main Authors: Park, Seonghwan, Kim, Jeongmi, Park, Younghyun, Kim, Sunah, Cho, Sunja, Yu, Jaechul, Kang, Changmin, Lee, Taeho
Format: Article
Language:English
Subjects:
biodiesel
Biodiesel fuels
Biofuels
Biomass
biomass production
Biotechnology
Chemical oxygen demand
Chemistry
Chemistry and Materials Science
Cultivation
Fatty acids
fuel production
Glucose
Industrial and Production Engineering
Linoleic acid
Lipids
Micractinium
Oleic acid
Palmitic acid
Productivity
Research Paper
Wastewater
생물공학
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Summary:An optimum trophic mode condition was investigated to maximize biomass and lipid productivity of Micractinium inermum NLP-F014, which grown successfully in blended wastewater medium. In this study, four trophic modes were used, including photoautotrophic, photoheterotrophic, heterotrophic and mixotrophic modes. Mixotrophic mode showed the highest biomass and lipid productivity. However, a high concentration of organics resulted the negative effect on the growth of M. inermum NLP-F014. Mixotrophic cultivation using glucose below 500 mg/L was able to produce maximum biomass productivity up to 0.90 ± 0.03 g/L/day as well as maximum lipid productivity up to 129.31 ± 0.10 mg/L/day. From lipid analysis on mixotrophic mode using glucose, the major fatty acids are oleic acid (C18:1), linoleic acid (C18:2) and palmitic acid (C16:0). These results suggest that mixotrophic mode cultivation with wastewater containing chemical oxygen demand (COD) below 500 mg/L could be applicable for biodiesel production of M. inermum NLP-F014.
ISSN:1226-8372
1976-3816
DOI:10.1007/s12257-017-0489-1