Fig. 2From: Sequential fractionation of the lignocellulosic components in hardwood based on steam explosion and hydrotropic extractionInfluence of temperature (panel a) and hold-up time (panel b) during HEX on the composition of the solid fraction. Glucan (black), lignin (dark grey), and xylan (light grey) are shown as percentage dry mass. All materials were STEX-pretreated prior to HEXBack to article page