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HomeChemistryA hemicellulose-first strategy: one-step conversion of sugarcane bagasse to xylooligosaccharides over activated...

A hemicellulose-first strategy: one-step conversion of sugarcane bagasse to xylooligosaccharides over activated carbon modified with tandem plasma and acid therapies


With rising consciousness of a round financial system, it’s essential to make the most of all lignocellulose biomass parts as a useful resource to keep up sustainability. We have now selectively focused the one-step conversion of hemicellulose in sugarcane bagasse to xylooligosaccharides (XOS), that are helpful dietary dietary supplements, whereas protecting the cellulose and lignin comparatively intact. Along with the round financial system and inexperienced processing chemistry, we pursue plasma therapy of carbon supplies as a worldwide effort to provide metal-free carbon-based catalysts. Herein, activated carbon (AC) was subjected to 2 completely different therapies: plasma irradiation to create a porous honeycomb construction and redistribute floor oxygenate practical teams (phenolics –OH), lactonics, and –COOH)) and acid impregnation with HNO3 to reinforce the general acidic practical teams of the carbon, particularly the –COOH teams. The functionalized AC was efficient to selectively depolymerize sugarcane bagasse hemicellulose to XOS in water as a solvent. Excessive XOS yields of fifty.0 % (composed of xylobiose (14.1 %) xylotriose (11.9 %). xylotetraose (8.8 %), xylopentaose (9.1 %) and xylohexaose (6.0 %)), and 15 % xylose was obtained. No undesirable sugar degradation merchandise – furans have been detected. Thus, we suggest that the tandem sequence of plasma and acid modification of AC is a facile one-step new technique to depolymerize hemicellulose from lignocellulosic biomass.

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