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Table 1 Pretreatment methods and conditions of poplar

From: Effect of lignin content on changes occurring in poplar cellulose ultrastructure during dilute acid pretreatment

Sample code Poplar sample Starting % Klason lignin Pretreatment conditions
PL23-t0 Native 23.2 -
PL23-t15 Dilute acid pretreated 23.2 0.1 M H2SO4,160°C, 15 minutes
PL23-t35 Dilute acid pretreated 23.2 0.1 M H2SO4,160°C, 35 minutes
PL19-t0 Delignified 19.2 -
PL19-t15 Delignified then dilute acid pretreated 19.2 0.1 M H2SO4,160°C, 15 minutes
PL19-t35 Delignified then dilute acid pretreated 19.2 0.1 M H2SO4,160°C, 35 minutes
PL14-t0 Delignified 14.3 -
PL14-t15 Delignified then dilute acid pretreated 14.3 0.1 M H2SO4,160°C, 15 minutes
PL14-t35 Delignified then dilute acid pretreated 14.3 0.1 M H2SO4,160°C, 35 minutes