Characterization of Hydrothermal Liquid Product of Red Meranti (Shorea leprosula Miq.) Sawdust for Wood Preservative

摘要

In this research, Red Merantisawdust and water were mixed in a hydrothermal reactor equipped with a thermometer and pressure indicator. Experiments were conducted at the variation of the temperature of 200, 240 and 300°C; water to biomass ratio 1:10. The mixture was heated to the target temperature at an initial pressure of 1.0 MPaand then held for 30 minutes. After separated, the liquid product was applied for Sengon wood preservatives. Hence, the Sengon wood was tested for absorption, retention, weigh loss, and termite mortality. Based on experimental results, the liquid product at a temperature of 270°Cgenerated the highest absorption, retention, and termite mortality, that was 98.3291 kg/m~(3), 10.8479 kg/m~(3)and 72.67% respectively. Analysis of the liquid product by GC-MS indicated that phenol compounds and organic acids are able to control microbial growth and preserve wood.