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Efficient utilization of Eucheuma denticulatum hydrolysates using an activated carbon adsorption process for ethanol production in a 5-L fermentor.
- Source :
- Bioprocess & Biosystems Engineering; Mar2017, Vol. 40 Issue 3, p373-381, 9p
- Publication Year :
- 2017
-
Abstract
- A total monosaccharide concentration of 37.8 g/L and 85.9% conversion from total fermentable monosaccharides of 44.0 g/L from 110 g dw/L Eucheuma denticulatum slurry were obtained by thermal acid hydrolysis and enzymatic saccharification. Subsequent adsorption treatment to remove 5-hydroxymethylfurfural (5-HMF) using 5% activated carbon and an adsorption time of 10 min were used to prevent a prolonged lag phase, reduced cell growth, and low ethanol production. The equilibrium adsorption capacity ( q ) of HMF (58.183 mg/g) showed high affinity to activated carbon comparing to those of galactose (2.466 mg/g) and glucose (2.474 mg/g). The efficiency of cell growth and ethanol production with activated carbon treatment was higher than that without activated carbon treatment. Fermentation using S. stipitis KCTC7228 produced a cell concentration of 3.58 g dw/L with Y of 0.107, and an ethanol concentration of 15.8 g/L with Y of 0.48 in 96 h. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16157591
- Volume :
- 40
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Bioprocess & Biosystems Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 121250473
- Full Text :
- https://doi.org/10.1007/s00449-016-1705-7