Optimization of Japanese beech hydrolysis treated with batch hot-compressed water by response surface methodology

Abstract

In the present work, the combined effects of temperature and reaction time on hydrolysis of Japanese beech as treated by batch hot-compressed water were investigated by response surface methodology. A two-factor and three-level full factorial design was used for experimental design. The statistical models were established to configure the relationship between process conditions (temperature and reaction time) and water-soluble, saccharides from hemicelluloses (including arabinose, galactose, mannose, rhamnose, xylose and xylooligosaccharides) as well as decomposition compounds (5-HMF, furfural and organic acids). As a result of multiple response numerical optimization
by applying desirability function method, the optimal hydrolysis conditions were obtained to be temperature of 200℃ and reaction time of 3 min. At this optimum point, water-soluble, saccharides from hemicelluloses, 5-HMF, furfural and organic acids were 31.5%, 19.5%, 0.28%, 0.70%, and 0.59%, repectively.

Keywords: hydrolysis of Japanese beech, bioenergy, biomass, hot-compressed water, response surface methodology,
optimization
DOI: 10.3965/j.issn.1934-6344.2008.02.039-045
Citation: Lü Xin, Shiro Saka. Optimization of Japanese beech hydrolysis treated with batch
hot-compressed water by response surface methodology. Int J Agric & Biol Eng. 2008; 1(2): 39－45.