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Jurnal Ilmu dan Teknologi Hasil Hutan
Published by Institut Pertanian Bogor
ISSN : 19795238     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal yang dikelola oleh Departemen Hasil Hutan, menyajikan Ilmu, Teknologi, dan Keteknikan (kayu, komposit kayu, pulp dan kertas, serta hasil hutan non kayu, juga konsen terhadap isu-isu lingkungan dan kebijakan-kebijakan terkait hasil-hasil hutan).
Arjuna Subject : -
Articles 39 Documents
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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 spec Niken SUBEKTI; Dedy DURYADI; Dodi NANDIKA; Surjono SURJOKUSUMO; Syaiful ANWAR
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 1 No. 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

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
The qualities of core kenaf particle boards were studied.  The boards were made of core kenaf particles and their liquids fortified by melamine formaldehyde. Core kenaf liquids were prepared using 20 – 60 mesh particles, phenol : formaldehyde ratio of 0,5, based on Masri (2005).  SNI 06-4567-1998 and JIS A 5908-2003 were used to grade the kenaf liquids and particle board.  Factorial analysis 3 x 3 in Complete Randomized Design was applied with 2 replications.  Glue spread with 3 levels (10, 15 a Surdiding RUHENDI
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 1 No. 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The qualities of core kenaf particle boards were studied.  The boards were made of core kenaf particles and their liquids fortified by melamine formaldehyde. Core kenaf liquids were prepared using 20 – 60 mesh particles, phenol : formaldehyde ratio of 0,5, based on Masri (2005).  SNI 06-4567-1998 and JIS A 5908-2003 were used to grade the kenaf liquids and particle board.  Factorial analysis 3 x 3 in Complete Randomized Design was applied with 2 replications.  Glue spread with 3 levels (10, 15 and 20% of the oven dry weight kenaf particles) and fortification MF with 3 levels (15, 30 and 45% of the solid content of the kenaf liquids) were used.  Kenaf particles were cold soaked prior bonding.  The condition of bonding operation in making particle board were : pressure of 20 kgf/cm2 at 160ºC for 12 minutes. The best result of particle board produced by 20% glue spread and 45% MF fortification with the properties as follows : density of 0,7 g/cm3, moisture content of 6,6%, water absorb ability of 55,6%, thickness swelling of 16,6%, screw holding strength of 641,2 N, internal bond of 0,86 N/mm2, MOE of 2131,9 N/mm2, and MOR of 15,3 N/mm2.  Fortifications doesn’t significantly affect the quality of the particle boards.   Keywords: Core-kenaf, kenaf liquids, fortification.
Wood has specific base properties of thermal and combustion. Since being grew normally at marginal soil of mining area, sengon buto, waru and gmelina woods were objectified to investigate thermophisic aspect of their usage as substitution fuel in cement production. Examination based on species, ages and horizontal positions of those woods showed that mean of heating value in oven dry and air dry condition was 4.505 kkal/kg and 4.084 kkal/kg, respectively. Determination of wood substitution to or Tekat DWI CAHYONO; Zahrial COTO; Fauzi FEBRIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 1 No. 1 (2008): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

Wood has specific base properties of thermal and combustion. Since being grew normally at marginal soil of mining area, sengon buto, waru and gmelina woods were objectified to investigate thermophisic aspect of their usage as substitution fuel in cement production. Examination based on species, ages and horizontal positions of those woods showed that mean of heating value in oven dry and air dry condition was 4.505 kkal/kg and 4.084 kkal/kg, respectively. Determination of wood substitution to ordinary fuel was acquired by accumulating heating value with prediction value of plantation biomass potency; and enquiry for 850 ha mining area resulted that waru wood will contribute about 5,14% to coal total requisite per year, gmelina and sengon buto will contribute about 5,03% and 4,49%, respectively.   Keywords:  Wood, heating value, substitution fuel
Pangsor (Ficus callosa WILLD) and kecapi (Sandoricum kucape MERR) are usually planted in garden and rural forest. The objective of this study was to determine its specific gravity (SG), maximum crushing strength (σc//), longitudinal modulus elasticity (EL), and Poisson’s ratio (n).  The compression test  was conducted referring to  ASTM D143-94(2000) using UTM Instron 3369 which is equipped with two biaxial clip on extensometers.  The result showed that vertical and horizontal position of wood i Lusita WARDANI; Effendi Tri BAHTIAR; Ignasia Maria SULASTININGSIH; Atmawi DARWIS; Lina KARLINASARI; Naresworo NUGROHO; Surjono SURJOKUSUMO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

Pangsor (Ficus callosa WILLD) and kecapi (Sandoricum kucape MERR) are usually planted in garden and rural forest. The objective of this study was to determine its specific gravity (SG), maximum crushing strength (σc//), longitudinal modulus elasticity (EL), and Poisson’s ratio (n).  The compression test  was conducted referring to  ASTM D143-94(2000) using UTM Instron 3369 which is equipped with two biaxial clip on extensometers.  The result showed that vertical and horizontal position of wood in the trees statistically significant influenced on SG and σc//.  Horizontal position in Pangsor wood affected its EL, but the other position in both species were not significantly different.  There were poor correlations between SG with EL and σc//.   Poisson’s ratio value of both woods were in a range 0.0045 – 0.275 for longitudinal-radial direction (nLR), and 0.0151 – 0.1289 for longitudinal-tangensial direction (nLT).   Keywords :    Longitudinal Modulus of Elasticity, Maximum Crushing Strength, Poisson’s Ratio, Pangsor wood, Kecapi wood
The use of modern devices and human activity today have increased noise problem. The applicaton of acoustic panels in building construction could be as an alternative to overcome this problem. The purpose of this study was to investigate acoustical properties of sound absorption coefficient and sound transmission loss from wood wool or excelsior board. Three fast growing species, sengon (Paraserianthes falcataria), african wood (Maesopsis eminii), and mangium (Acacia mangium) lumbers were proces Lina KARLINASARI; Dede HERMAWAN; Akhiruddin MADDU; Bagus MARTIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The use of modern devices and human activity today have increased noise problem. The applicaton of acoustic panels in building construction could be as an alternative to overcome this problem. The purpose of this study was to investigate acoustical properties of sound absorption coefficient and sound transmission loss from wood wool or excelsior board. Three fast growing species, sengon (Paraserianthes falcataria), african wood (Maesopsis eminii), and mangium (Acacia mangium) lumbers were processed to obtain wool particles. Two different categories of board density and types of resins were used in this study. Sound absorption coefficient was determined using the impedance tube method, while that for the determination of transmission loss based on the reverberation room method. The results showed that the board density of 0.8 g/cm3 had good sound absorption for low and high frequencies compared with board of 1.0 g/cm3. In the medium frequencies those boards reflected the sound. Wood wool cement bonded board was good in sound absorption for high frequency. In the range low to high frequencies, the boards with isocyanate adhesive were good in transmission loss value compared with cement bonded boards. Meanwhile, the boards with density of 1.0 g/cm3 possessed transmission loss value higher than board of 0.8 g/cm3.   Keywords:     acoustic panel, wood wool board, fast growing species, sound absorption, transmission loss
Physical and mechanical properties of jabon wood particleboards were studied. The wood particle from lower, upper parts of trunk and branches of jabon tree were used. The wood wettability was observed at lower, upper part of trunk and branches of 2.5 years old jabon tree from Cihideung Ilir village, Bogor. The quality of particleboard in terms of density, moisture content, thickness swelling, modulus of elasticity, modulus of rupture, internal bond, and screw holding power were tested accordance Surdiding RUHENDI; Erwinsyah PUTRA
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

Physical and mechanical properties of jabon wood particleboards were studied. The wood particle from lower, upper parts of trunk and branches of jabon tree were used. The wood wettability was observed at lower, upper part of trunk and branches of 2.5 years old jabon tree from Cihideung Ilir village, Bogor. The quality of particleboard in terms of density, moisture content, thickness swelling, modulus of elasticity, modulus of rupture, internal bond, and screw holding power were tested accordance with JIS 5908:2003. In general partikel bord made of jabon wood from upper, lower of trunk and branches of jabon were as follow: density (0.61 g/cm³, 0.58 g/cm³, 0.65 g/cm³), moisture content (9.9%, 9.7%, 9.3%), thickness swelling (44.8%; 52.3%; 30.6%), modulus of elasticity (9716.1 kg/cm², 7997.4 kg/cm², 12954.3 kg/cm²), modulus of rupture (82.6 kg/cm², 71.3 kg/cm², 90.8 kg/cm²), internal bond (5.06 kg/cm², 3.02 kg/cm², 6.12 kg/cm²) and screw holding power (30.6 kg/cm², 38.8 kg/cm², 47.5 kg/cm²), respectively.  The quality of jabon wood were not affected by the precentage of adhesive used. There were a variability in wettability of  jabon wood between parts of tree. The wettability of jabon wood of upper, lower trunk and branches were 1800.4, 2126.1 and 2169.7 mm, respectively. Furthermore, the variabilities were also happened in almost all physical dan mechanical properties of the particleboard. The higher the wettability the higher the quality of the particleboard, means that wettability as a good indicator for quality of  jabon woods particleboard.The quality of particleboard made of woods from branches were better than others.     Keywords: particleboard, jabon, wettability,gluability
The acidity of wood and panel product was important factor to impact on metal corrosion and give effect on adhesive curing time.  The objective of this research was  to explore of pH and buffering capacity from nine tropical woods.  Method to determination of pH and buffering capacity  reffers to Johns and Niazi (1980) experiment. The result of this research showed that nine tropical woods which observed had different acidity and buffering capacity. The range of wood acidity had pH 4-7.  The cor Apri Heri ISWANTO; Tito SUCIPTO; Fauzi FEBRIANTO
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The acidity of wood and panel product was important factor to impact on metal corrosion and give effect on adhesive curing time.  The objective of this research was  to explore of pH and buffering capacity from nine tropical woods.  Method to determination of pH and buffering capacity  reffers to Johns and Niazi (1980) experiment. The result of this research showed that nine tropical woods which observed had different acidity and buffering capacity. The range of wood acidity had pH 4-7.  The correlation value of pH and buffering capacity from this research about 4-5 for base and acid buffering.   Keywords:  acidity of wood, pH, buffering capacity.
The use of wood as a construction material is still the primary choice for most Indonesian people. For the purposes of structural construction, it would require a long span of wood, whereas stock in the market is limited, so usually it is overcomed with joint technique which can be done with type of joint and connector. Kind of joint that is needed to be considered seriously is tensile, shear and moment joint. Nail joint is relatively cheap and easy to be done. Variables which are used to see an Sucahyo SADIYO; Imam WAHYUDI; Yeyet .
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

The use of wood as a construction material is still the primary choice for most Indonesian people. For the purposes of structural construction, it would require a long span of wood, whereas stock in the market is limited, so usually it is overcomed with joint technique which can be done with type of joint and connector. Kind of joint that is needed to be considered seriously is tensile, shear and moment joint. Nail joint is relatively cheap and easy to be done. Variables which are used to see and predict the level of allowable load for a nail joint are diameter and number of nails. Therefore, the objective of this research was to know the influence from the variables to the strength of joints under uni-axial compression loading from 3 wood species. The results showed that double shear connections strength of nangka wood (allowable load per nail and also total load) has the highest value compared with rasamala and sengon. Nangka wood also reached the highest value for maximum crushing strength. Maximum crushing strength had positive relationship with double shear connections strength. Based on the result of this research, maximum crushing strength is applicable to predict the strength of nails.   Keywords   : allowable load, maximum crushing strength, nails, double shear connections, tensile joint
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 show Wayan DARMAWAN; Istie S RAHAYU; Dodi NANDIKA; Widyana LUZA
Jurnal Ilmu dan Teknologi Hasil Hutan Vol. 4 No. 1 (2011): Jurnal Ilmu Teknologi Hasil Hutan
Publisher : Departemen Hasil Hutan, IPB

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Abstract

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

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