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The objectives  The work was carried out for extraction of natural anthrasesamones from roots of  Sesamum Indicum  using different organic solvents and utilization of extracts as catalyst in pulping with sodium hydroxide for a by-product of sugar industry (Sudanese bagasse).    Results   Sesamum Indicum  roots when extracted with ethanol, it gave the highest extracts yield % (0.964), followed by ethyl acetate, chloroform, dichloromethane and petroleum ether extracts. The chemical pulping of Bagasse was done by using of sodium hydroxide, sodium hydroxide with anthraquinone, and sodium hydroxide with extract instead of anthraquinone keeping constant conditions at temperature 160 °C and applied sodium oxide 10.9% and time was 120 min, gave promising screened yield between 49.84 and 53.68%, bleachable kappa number between 15.57 and 8.26 for sodium hydroxide only and cooking with sodium hydroxide with anthraquinone. Cooking with sodium hydroxide of bagasse with anthrasesamones gave good pulping yields and kappa number.    Electronic supplementary material  The online version of this article (10.1186/s13104-019-4075-9) contains supplementary material, which is available to authorized users.

Crude extracts of Sesamum Indicum roots used as anthraquinone source effect on pulping with sodium hydroxide of Sudanese bagasse