Decoloration of xylo-oligosacchardies from sugarcane bagasse by macroporous resin and activated charcoal
The effect of four types activated charcoal and seven types of macroporous resins on decoloration of xylo-oligosaccharides(XOs) prepared from sugarcane bagasse were investigated.Results showed that HC303 powder activated charcoal and macroporous anion exchange resin D750 performed best.95.4% of color value was removed and only 4.8% reducing sugars were lost when 3.0 g/L of activated charcoal was added and stirred at 160 r/min,80 ℃,pH3.0 for 60 min.When 4.50% of macroporous resin D750 was added and stirred at 160 r/min,60 ℃,for 3.0 h,96.5% of color value was removed and 6.0% reducing sugars lost.