The hydrothermally treated sweet sorghumbagasse (SSB) powder was treated using Ca(OH)2 to extract the lignin fromit. Changes\nin chemical composition of SSB and the formation of sugars and hydrolytic products were studied.The optimum conditions of 10%\n(g/g substrate) Ca(OH)2 and 106.3 min of isothermal treatment residence time at 394K resulted in 69.67 �± 1.26% of the lignin\nextracted from the hydrothermally treated SSB powder, producing a solid residue containing 68.29 �± 0.31% residual cellulose\nand 13.26 �± 0.32% residual lignin in it. The Ca(OH)2 concentration and isothermal treatment residence time were significant in\nthe responses observed. Treatment using Ca(OH)2 is one of the potential processes for the on-farm processing of lignocellulosic\nmaterials.
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