Membrane separation and characterisation of lignin and its derived products obtained by a mild ethanol organosolv treatment of rice straw
P Moniz, C Serralheiro, CT Matos, CG Boeriu… - Process …, 2018 - Elsevier
An organosolv process using ethanol-water was optimized in order to recover high quality
lignin from rice-straw previously pre-treated by autohydrolysis at 210° C. The results showed
a selective and appreciable removal of lignin under very mild conditions and the highest
delignification yield occurred at 30° C. The lignin extracts were characterised using capillary
zone electrophoresis (CZE), size exclusion chromatography (SEC), Fourier transform
infrared spectroscopy (FT-IR) and 31 P-NMR, and two-dimensional heteronuclear single …
lignin from rice-straw previously pre-treated by autohydrolysis at 210° C. The results showed
a selective and appreciable removal of lignin under very mild conditions and the highest
delignification yield occurred at 30° C. The lignin extracts were characterised using capillary
zone electrophoresis (CZE), size exclusion chromatography (SEC), Fourier transform
infrared spectroscopy (FT-IR) and 31 P-NMR, and two-dimensional heteronuclear single …
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