会议名称：“2024世界木材日”研讨会暨第六届国际林联（IUFRO）林产品文化研究组讨论会
会议时间：2024年3月21-22日

报告嘉宾：Olusola Samuel Areo 博士
嘉宾单位：尼日利亚林业研究所

报告摘要：

Deforestations of tropical forests due to demands by increasing population have rendered the wood sector non-productive in view of a decrease in the availability of the commercials timber species. In ensuring adequate supply and availability of timber in the wood industry, B.sapida, a Lesser-Used Species, is being processed into sawn timber. Knowledge of its chemical composition will further improve its utilization potential. Due to insufficient scientific information on the chemical properties of the wood, investigation into its chemical composition becomes imperative to harness its utilization potential. Three standing trees of B.sapida were felled for this study at the Campus of University of Ibadan, Nigeria. Billets of 50cm were collected from the base, middle, and top of merchantable height of each tree following the ASTM 1666-87 standard procedure. Sawdust was collected from the base, middle and top of each tree as test samples for the determination of chemical composition analysis of the wood such as (cellulose, hemicellulose, lignin and silica content). The results showed the average percentages chemical constituents of 1% NaOH, Hot water, and cold water were highest at the base (9.23±0.09, 6.47±0.09, 5.03±0.09) and lowest at the middle (8.43±0.09, 5.87±0.09, 4.37±0.09) respectively. Cellulose and lignin were highest at the base (40.97±0.88, 18.53±0.15) and lowest at the top (38.33±0.88, 16.73±0.88) respectively. However, hemicellulose was highest at the top (30.47±0.88) and lowest at the base (24.57±0.88). An extractive element shows that the silica content was highest at the base (0.83±0.03) and lowest at the top (0.47±0.03). Hence, the chemical composition and extractive contents suggest its suitability for pulp and paper production.

关键字: Blighia sapida, extractives, composition, hemicelluloses, pulp production

责任编辑：iwcs24H