Ethanol production with starch-based Tetraselmis subcordiformis grown with CO2 produced during ethanol fermentation / 生物工程学报
Chinese Journal of Biotechnology
;
(12): 1292-1298, 2011.
Article
in Chinese
| WPRIM
| ID: wpr-304575
ABSTRACT
A system coupling ethanol fermentation with microalgae culture was developed, in which CO2 produced during ethanol fermentation was used as carbon source for the growth of Tetraselmis subcordiformis, a microalgae accumulating starch intracellularly. The biomass concentration about 2.0 g DCW/L was achieved within the photobioreactor for the batch culture of 7 days, and intracellular starch accumulation was about 45%. Furthermore, ultrasonic pretreatment and enzymatic hydrolysis were applied to the microalgae biomass, and 71.1% of the intracellular starch was converted into glucose that was fermented sequentially to ethanol by Saccharomyces cerevisiae with an ethanol yield of 87.6% of the theoretical value, indicating that the microalgae biomass could be an alternative feedstock for ethanol production to save grain consumption, and in the meantime mitigate the CO2 emission.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pharmacology
/
Saccharomyces cerevisiae
/
Starch
/
Carbon Dioxide
/
Cells, Cultured
/
Ethanol
/
Microalgae
/
Fermentation
/
Photobioreactors
/
Batch Cell Culture Techniques
Language:
Chinese
Journal:
Chinese Journal of Biotechnology
Year:
2011
Type:
Article
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