Chemical composition of mengkirai (trema orientalis) for different height levels, sapwood and heartwood / Siti Zalifah Mahmod

The variability of chemical composition along height level, sapwood, and heartwood including part of base, middle and top were determined using methods in TAPPI Standards and the results were discusses in this paper. According to the species Trema orientalis (mengkirai) was selected as a main material in this study. The chemical in the sample wood included cellulose, hemicellulose, lignin and extracneous components. The experiment was carried out to know he percentage of chemical contains in T. orientalis species. The chemical constituent results have shown cold water solubility (1.5%), hot water solubility (2.59%), and the alcohol-benzene solubility (10.87%). However, this studied must be continues for the next time to know the better results of chemical constituents of mengkirai wood.