Summary
Treatment of wood meal with aqueous alkali in the presence of anthraquinone at 80°C leads to a conversion of reducing hexose end groups in the polysaccharides to mannonic and gluconic acid end groups. Xylose end groups are oxidized to xylonic and lyxonic acid groups. This leads to a stabilization of the polysaccharides against endwise alkaline degradation.
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Löwendahl, L., Samuelson, O. Carbohydrate stabilization with anthraquinone during alkaline pulping. Polymer Bulletin 1, 205–210 (1978). https://doi.org/10.1007/BF00283071
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DOI: https://doi.org/10.1007/BF00283071