Japan AIST Researchers Exploring Ethanol Production from Macro Algae
02 January 2010
Researchers from the Biomass Technology Research Center at Japan’s National Institute of Advanced Industrial Science and Technology (AIST) are investigating the potential of ethanol production from macro green algae (i.e. seaweed).
They collected 10 species of macro green algae in Thailand, Vietnam and Japan, classified into 3 families, and determined the monosaccharide composition. Cheatomorpha aereas collected in Vietnam was the most glucose-rich sample of these samples, about 300 mg of glucose per gram of organic matter.
Experiments of enzymatic saccharification and the ethanol fermentation were carried out by using Ulva spp. collected in Japan. The glucose yield was about 95% by using Acremonium cellulase after pretreatment in an autoclave (120 °C, 20 min).
Efficiency of ethanol fermentation using S. cerevisiae IR-2 after the enzymatic saccharification was about 90%. More than 4 % (w/v) of NaCl concentration inhibited the ethanol fermentation, while the effect of NaCl concentration for the saccharification was small.
Resources
Akiko Isa, Yasufumi Mishima, Osamu Takimura and Tomoaki Minowa (2009 Preliminary Study on Ethanol Production by Using Macro Green Algae. Journal of the Japan Institute of Energy, 88, 912
Very significant, expect more from this.
The AIST have many freely downloadable PDF's on matters of interest.
Cheatomorpha aereas collected in Vietnam was the most glucose-rich sample of these samples, about 300 mg of glucose per gram of organic matter.
Posted by: arnold | 02 January 2010 at 08:30 PM
Very significant, expect more from this.
The AIST have many freely downloadable PDF's on matters of interest.
Cheatomorpha aereas collected in Vietnam was the most glucose-rich sample of these samples, about 300 mg of glucose per gram of organic matter.
Posted by: arnold | 02 January 2010 at 08:30 PM