Additional file 1: Table S1. of Comparison of [HSO4]−, [Cl]− and [MeCO2]− as anions in pretreatment of aspen and spruce with imidazolium-based ionic liquids

Abstract

By-products from the compositional analysis of the carbohydrate content. Table S2. Estimation of crystallinity using FTIR. Figure S1. SEM images of untreated and torrefied wood of aspen and spruce. Figure S2. SEM images of untreated and IL-pretreated aspenwood. (DOCX 2756 kb