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KMID : 0380020090240050415
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Korean Journal of Biotechnology and Bioengineering
2009 Volume.24 No. 5 p.415 ~ p.419
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Evaluation of Biological and Physico-chemical Detoxification Methods for the Removal of Inhibitors in Lignocellulose Hydrolysate
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Cho Dae-Haeng
Kim Yong-Hwan
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Abstract
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In this study, the detoxification methods were evaluated for the removal of fermentation inhibitors from synthetic solution containing the composition similar to the lignocellulosic hydrolysate. The enzyme peroxidase and laccase were used as a biological treatment method. The physico-chemical methods such as adsorption and ion exchange were applied by using activated charcoal and ion exchange resins. The enzyme peroxidase showed a excellent removal of phenolic compounds. The 5-HMF and furfural were completely removed by activated charcoal. The anion exchange resin showed a good result for detoxification of acetic acid. The activaed charcoal and ion exchange resins lead to a loss of sugars more or less. The choice of detoxification method must be made after considering the composition and inhibitors in hydrolysates.
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KEYWORD
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detoxification, lignocellulose, hydrolysate, peroxidase, acivated charcoal, ion exchange resin
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