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Bioresour Technol. 2013 Nov;148:408-13. doi: 10.1016/j.biortech.2013.09.021. Epub 2013 Sep 13.

Hydrothermal pretreatment of bamboo and cellulose degradation.

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College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China.


A systematic hydrothermal pretreatment of bamboo chips had been conducted with an aim to trace the cellulose degradation. The results showed that cellulose chain cleavage basically occurred when the temperature exceeded 150°C. A slightly higher DP (degree of polymerization) than starting material had been observed at low temperature pretreatment. Treatment at higher temperature (≥ 170°C) caused severe cleavage of cellulose and therefore gave rise to low DP with more soluble species. DP of cellulose declined drastically without additional hemicelluloses dissolution when hemicelluloses removal reached to the limit level. Cellulose degradation under hydrothermal pretreatment generally followed the zero reaction kinetics with the activity energy of 121.0 kJ/mol. Besides, the increase of cellulose crystalline index and the conversion of Iα-Iβ had also observed at the hydrothermal pretreatment.


Bamboo; Cellulose degradation; Hemicelluloses removal hydrothermal; Pretreatment

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