Eight tropical hardwoods (Malaysian) were subjected to autohydrolysis at 195#xB0;C for 10 #x2013; 100 Min, followed by extraction with 90 dioxane. A linear relationship was obtained between the of water soluble extract, after autohydrolysis, and the of hemicellulose present in the respective woods. Comparison of the different woods for their response to autohydrolysis was made, based on the of maximum extractable lignin obtained. It was found that the effectiveness of autohydrolysis was not related to the density of the wood, or to the taxonomic type, but to a certain extent to the content of lignin present in the wood.
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