Author Details

., ARINANA, Indonesia

  • Vol 2, No 2 (2009): Jurnal Ilmu Teknologi Hasil Hutan - Articles

    Pulai (Alstonia scholaris)  was classification as IV-V for strenght class and V for durability class. This means that pulai has a low quality. One effort to improved the quality of pulai wood was densification process. This research aimed to evaluation the physical, mechanical and durability of pulai wood before and after densification process and to evaluated the temperature and pressing time on resulted the best quality of pulai wood. Densification was conducted on 160 °C and  180 °C with three pressing time 40 minute, 50 minute and 60 minute respectively. Densification targetted was 30%. Physical and mechanical process was conducted based on  British Standard Methods No. 373 (1957), meanwhile durability test against subterranean termites was conducted with modified wood block test methods. Result of the research showed that densified pulai wood  has the highest quality on physical, mechanical and durability properties than pulai wood control. The best densified treatment was on 180 °C with pressing time 60 minute. Densification process has improve the quality of pulai wood on one level class.

     

    Keywords :  Alstonia sp, densification process, Coptotermes curvignathus


    Abstract  PDF
  • Vol 2, No 1 (2009): Jurnal Ilmu Teknologi Hasil Hutan - Articles

    The development of baiting system was very advanced, however it was very expensive thus the use of it was limited on certain community. Based on those conditions, it was needed a researches on local resourches basis or low cost material baiting system in order to be applicated in building protection included simple home. This researches consisted of laboratory and field test. The laboratory test was performed to determine preference baiting media (pulp, sawdust, Pinus merkusii wood, WMD (wood monitoring devices) from Pinus radiata and reliability tested between disodium borax decahydrate and chitosan against Coptotermes curvignathus. After the determination of baiting system and reliability, field test was performed on termite attacked building. Field test consisted of termite presence detection,observatory station, determination of consumption rate and baiting system resistance. The laboratory results showed the most preference baiting system was WMD with persentage weight loss was 40.5%. The comparation of reliability between disodium borax decahydrate and chitosan showed that termite mortality of disodium borax decahydrate was higher than chitosan, meanwhile reliability results showed oltherwise. Chitosan field test showed eating consumption level was decreasing at 75th days and on 135th days eating consumption level was rached 15 gr/day. It meaned there was a decreasing of termite population cause of termite baiting system.

     

    Keywords :  Pulp, disodium borax, chitosan, baiting, Coptotermes curvignathus


    Abstract  PDF