NANDIKA, Dodi, Indonesia

  • Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 3 No. 1 (2010): Jurnal Ilmu Teknologi Hasil Hutan - Articles

    Biodeterioration should be controlled properly for efficient and sustainable forest products (woods) utilization. This research aimed to know the distribution of wood biodeterioration in house structure; the biodeterioration intensity and its economic loss in Lembang, Bogor, Serang and North Jakarta, which were different in temperature and humidity.  The survey was conducted to 200 houses in the four places.  The result showed that wood biodeterioration occured in most (90%) house buildings.  Doors, windows and roof structures were the most frequent attacked by biodeterioration agents. Decay fungi attacked wet wooden house components, mainly lisplank and ceiling, whereas termites attacked mainly doors, windows, poles and walls. The volume of damaged wooden house components in Lembang and Bogor were higher than those in the warmer and drier regions, Serang and North Jakarta. The average economic loss due to wood biodeterioration in a houses was about  Rp28 000/year.  However the economic loss per region was quite high, about two billion rupiahs per year in Serang and more than eight billion rupiahs in Bogor City.

     

    Keywords : Biodeterioration, decay fungi, termites, beetles, residential buildings


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

    Soldier from subterranean termites Coptotermes curvignathus eject a poison secretions as a defensive secretions to overcome their enemy. This research aimed to evaluation the toxicity of soldier defensive secretions extract in aquabidestilata, ethanol, ethyl acetate and n-hexane             solutions against Odontoponera denticulata ants. Filter paper with 200 µl extract were exposure to ants for 14 day.                    The first time ants mortality and time for all ants                  mortality were recorded. Result of the research showed that the first time ants mortality was on ethanol extract (15 minutes                after exposure), then followed on ethyl acetate extract,                  n-hexane extract and aquabidestilata extract for 30, 35 and 40 minutes respectively.The faster time for all ants mortality            was on ethanol extract (54 hour), then followed by ethyl acetate  extract, n-hexane extract and aquabidestilata extract for 74, 79 and 82 hour respectively. GCMS analysis showed that the bioactive compound on ethanol extract were pentadecanal and tetradecanal.

     

    Keywords : Soldier defensive secretions, toxicity, Coptotermes curvignathus, Odontoponera denticulata


    Abstract  PDF
  • Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 1 No. 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan - Articles

    Subterranean termite, Macrotermes, play important role on plant nutritive cycles through disintegration and decomposition of organic matter processes.  In the other hand, subterranean termite can cause wooden damage in the nature and human dormitory as well. Therefore, Macrotermes are potential pest and need to be controlled.  Effective pest-control of subterranean termite can be made when their species status and distribution are well known. This research is aimed to identify the status of species and the dispersal of Macrotermes at their natural habitat in order to explore natural bio-resources richness and as an effort towards effective pest-control due to increasing risk of attack.  Survey method was used termite samples were collected at four different locations which are defined by global positioning system (GPS).  Nest classification is according to Meyer et al. (2003). The nest mapping is based on the elevations of their natural habitat in Gunung Halimun Salak National Park (900-1000 asl), and (600-700 asl), Yanlappa sanctuary (200-300 asl), and Ujung Kulon Nasional Park (0-100 asl). Phylogenetic relationships analysis showed that subterranean termite Macrotermes in the natural forest community are belongs to one big group Macrotermes gilvus Hagen. Based on nest size, the colony of Macrotermes can be classified into three different sizes: large, medium, and small nest.  Large and medium nest can be found in large amount in Yanlappa sanctuary (15 and 23 colonies, respectively) and the majority of small nest occurred in Gunung Halimun Salak National Park at 900 asl (78 colonies). Temperature and humidity is the most environmental factor that can influence on termite and other factor is rain fall, soil structure, and plant vegetation.

     

    Keywords:  Distribution, identify, Macrotermes gilvus Hagen, nest


    Abstract  PDF
  • Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan - Articles

    Enhancement of surface appearance of wood products in wood working industry has been done by application of wood stain.  However, the use of wood stains has been recently limited due to emission of a hazardous material.  Through this work a new technique of ammonia fuming has been experimented.  The purpose of the research work was to investigate the effect of ammonia fuming and wood characteristics on the surface appearance of nangka wood (Artocarpus heteropyllus).  The experimental result showed that ammonia in the volume of 2 liter could change significantly the natural color of (16 x 8 x 2) cm size nangka wood after 24 hours of fuming.  Increasing in the period of fuming to 48 hours did not provide any difference in color compared to the 24 hours of fuming, however the 48 hours fuming generated deeper changes in color on the surfaces of the wood.  Heartwood of nangka was observed to generate more significant changes in color compared to the sapwood.  Fresh wood produced a darker color than air-dried wood.  The wood treated by ammonia fuming showed an increase in resistance against termite and decayed fungi attacks.

     

    Keywords   :  ammonia fuming, finishing, heartwood and sapwood, preservation


    Abstract  PDF