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Effect of Gamma Irradiation on Wood Chip Saccharification Pretreated with NaOH
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  • Journal title : Korean Chemical Engineering Research
  • Volume 54, Issue 3,  2016, pp.431-435
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2016.54.3.431
 Title & Authors
Effect of Gamma Irradiation on Wood Chip Saccharification Pretreated with NaOH
Kim, Su-mi; Choi, Jong-il; Joe, Min-Ho; Kim, Jong-deog;
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The aim of this study was to investigate the effect of gamma irradiation on the pretreatment of wood chips with NaOH solution. The degree of saccharification was quantified by measuring reducing sugar and glucose concentrations after enzymatic hydrolysis. After pretreatment with 10 g/L NaOH, the wood chips were irradiated at the doses of 0, 50, 100, and 200 kGy, respectively. Among the irradiated samples, wood chips irradiated at the dose of 200 kGy had the highest reducing sugar concentration of 12.2 g/L. Also, to define the effect of irradiation before pretreatment, the wood chips were first gamma-irradiated and then pretreated with NaOH. When the NaOH treatment was conducted after irradiation at 200 kGy, the reducing sugar content was further increased to 13.4 g/L and glucose content of the wood chip was as high as 7.9 g/L. These results suggest that gamma irradiation may be the promising method for pretreatment of cellulose biomass.
NaOH;Pretreatment;Gamma irradiation;Wood chip;
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