Enhancing Enzymatic Digestibility of Miscanthus sinensis using Steam Explosion Coupled with Chemicals

  • Jung, Ji Young ;
  • Yang, Jae-Kyung
  • Received : 2015.10.14
  • Accepted : 2015.12.25
  • Published : 2016.03.25


The effect of steam explosion coupled with alkali (1% sodium hydroxide, 1% potassium hydroxide and 15% sodium carbonate) or organosolv solvent (85% methanol, 70% ethanol and dioxane) on the production of sugar, changes in the chemical composition of M. sinensis were evaluated. The steam explosion coupled with 1% potassium hydroxide and dioxane were better as compared with other treatments based on the removals of acid insoluble lignin, and about 89.0% and 85.4%. Enzymatic hydrolysis of steam explosion with 1% potassium hydroxide and dioxane treated M. sinensis, gave a 98.0% and 96.5% of glucose conversion, respectively. These results suggested that pretreatment of M. sinensis with either potassium hydroxide or dioxane could be a promising pretreatment method for glucose production.


Miscanthus sinensis;steam explosion;pretreatment;enzymatic hydrolysis;potassium hydroxide;dioxane


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Grant : Forest Science & Technology Projects

Supported by : Korea Forest Service