Cultivation of microalgae in the solution from the desalting process of soy sauce waste treatment and utilization of the algal biomass for ethanol fermentation
- Resource Type
- Original Paper
- Authors
- Shirai, F.; Kunii, K.; Sato, C.; Teramoto, Y.; Mizuki, E.; Murao, S.; Nakayama, S.
- Source
- World Journal of Microbiology and Biotechnology. November 1998 14(6):839-842
- Subject
- Microalgae
soy sauce waste
ethanol
fermentation
- Language
- English
- ISSN
- 0959-3993
1573-0972
The growth of four marine microalgae was examined in a medium prepared from the effluent from the desalting process of soy sauce waste. A strain of Dunaliella that showed abundant growth on soy sauce waste extract was selected, and optimum cultivation conditions were determined. The algal cells produced were disrupted, and saccharified with glucoamylase. The saccharified solution was fermented using Saccharomyces cerevisiae IAM 4140. Stoichiometric study revealed that 11mg of ethanol was produced from 1g (dry cell weight) of Dunaliella cells. This work indicates a new method for removing waste products of the soy sauce production industry.