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INDONESIA
Jurnal Penelitian Hasil Hutan
Published by Badan Penelitian dan Penegembangan Kehutanan
ISSN : 02164329     EISSN : 24428957     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management
Arjuna Subject : -
Articles 1,559 Documents
 100   101   102   103   104 
ORGANISME PERUSAK KAYU PADA BEBERAPA RUMAH DI TIGA KABUPATEN DI PROPINSI JAWA BARAT Ginuk Sumarni; Agus Ismanto
Jurnal Penelitian Hasil Hutan Vol 6, No 6 (1989): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1989.6.6.402-406

Abstract

Survey on wood-destroying organisms attacking people's houses was carried out at Padalarang (Bandung district), Cibadak (Sukabumi districtj, and Pacet (Cianjur district). Data collection were done by interviewing and filling-out questionaire forms. Result of the investigation indicated that local timber and bamboo are used largely for house components. Wood destroying organisms found attacking the components are rotting fungi, subterranean termites, dry-wood termites, and powder post-beetles.
PENGAWETAN DUA JENIS KAYU MERANTI DENGAN METODE RENDAMAN Barly Barly; Pipin Permadi
Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.4.4-7

Abstract

This paper deals with an experiment  of soaking  treatment  of two meranti  wood species each with  Wolmanit CB and Koppers Formula 7. In this process three groups of  wood samples  measure 50 cm x 5 cm x 5 cm were submerged  in a bath of preservative for  three, five  and seven days. The treatability  of  the samples  were studied.  From  this study  the following   conclusions  could  be drawn:Penetration of both preservatives could be increased into red meranti when high concentration   were employed.Retention  of Koppers  Formula  7 increases on both  meranti  when high concentration   was employed.In general the such  treatment  can not be recomended  due to the result obtained  is lower  than  the treatment  spesification requirements  for housing  wood preservation. 
ISOLASI DAN PENCIRIAN LIGNIN DARI LINDI HITAM DAN SENGON UNTUK BAHAN PEREKAT Adi Santoso; Surdiding Ruhendi; Suminar S Achmadi; Endang Suhendang
Jurnal Penelitian Hasil Hutan Vol 13, No 2 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1995.13.2.60-70

Abstract

Lignin   is  the  polymer   which   has  been   degraded    and  removed    in pulping  processes.     The occurance   of lignin  as  a waste  product   in pulp  mills  has  made   it an  attractive   raw  material  for adhesives    eversince    the  beginning   of  the  sulfite  pulping   of  wood.   Therefore,    the  isolation   and its  characterization   are   important  lo  achieve    effective    lignin   removal.    In  this   investigation,  isolation   and  characterization   of black  liquor  and  sengon   lignin  were  carried  out.  the  isolation of  lignin   was   performed   by  precipitation   of  lignin   from  black   liquor   and  the  preparation   of  lignin   by way  of  cellulose   dissolution   from   sengon   (Paraserianthes    falcataria  (L) Nielsen).  the  recovery   of  lignin  was  evaluated   in  an  allempt  to  optimize  recovery    at  high  purity   by  qualitative  analyses   (ie.   UV - and  IR - spectrometry)   and  quantitative  analyses   (ie.  percentage   of pure  lignin, equivalent    weight,    ash   content,    etc).    lndulin-AT     (commercial   lignin) is  used   as   standard   of comparison.the  result   indicates   that  black   liquor   lignin   is  guayacil    lignin  with  16,8   -  17,4%   methoxyl  content,    2.0   - 2.1  %  phenolic    hydroxyl  content,    11.  7 -  11.9%     ash  content   and  percentage    of pure   lignin  about   64. 2  -  71.1   %.  this   result   is similar  with  indulin   - AT.    the   result  of sengon lignin  analyses show   that  it is syringyl   lignin  with  26.7  - 27.2%   methoxyl   content,    0.8  -  0.9% phenolic   hidroxyl   content,    25.1   - 25. 6%  ash  content  and  percentage    of pure   lignin  about  36. 1 -46.2%.   Side  effect of  these  result  were  reactivity  of sengon   lignin  is  lower  than  lignin from   black liquor and indulin - AT,  therefore,   sengon  lignin has no potential  as raw material for adhesives.
PENGARUH TEKNIK PENYADAPAN TERHADAP PRODUKSI GETAH AGATHIS DI BALI Ishak Sumantri Sumantri; Dulsalam Dulsalam; Machfudh Machfudh
Jurnal Penelitian Hasil Hutan Vol 4, No 4 (1987): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1987.4.4.63-66

Abstract

There are many kinds  of Agathis sp.  having specific bark thickness  in Indonesia. For example, at Buleleng Forest District Bali, where the investigation  was carried out,  there are two groups of Agathis sp. The first  group is Agathis  sp. known  to have bark thickness greater than one cm, and the other group belongs to thin bark ( < 1cm). The bark thickness  of Agathis   sp. has a bearing on the resin yield. The resin itself  is always coagulated  quickly, there by requiring special treatment  to produce  optimal  resin yield. This investigation  is intended  to select the Agathis sp. producing optimum  resin yield  and to increase the resin output by applying  new tapping  technique. This study  reveals that:The resin yield of Agathis sp. in Bali was quite low. It ranges from 0.1 gram to 24.6  gram/tree/week  with approximately   3.8  gram/tree/week average.Agathis sp. with  thick bark give higher resin yield than those of thin bark.  The average resin yield of thick bark Agathis sp, was 6.3  gram/tree/week,  while it is only 1.3  gram/tree/week   for thin bark.The  V-shape tapping  method  give resin yield  approximately  80% higher than the reverse  V-shape.The application  of H2SO4 10% as stimulant did not give significant effect on the resin production. Based on the  average resin yield  data, however, the resin yield  was actually  increased approximately  26%   when the H2S04 were added compare  to  the control. 
SIFAT PAPAN WOL KAYU DARI KAYU SENGON DAN KAYU KARET PADA BEBERAPA MACAM UMUR l M Sulastiningsih; Adi Santoso; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 13, No 3 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1995.13.3.101-109

Abstract

The  results  of  laboratory  test   of  wood-wool  board properties  made from  rubberwood (Hevea   brasiliensis)    and sengon  (Paraserianthes   falcataria)    are  reported  in this paper.   The wood used were obtained feom  different age groups i.e. 10  and 20 years for rubberwood and 5,  10  and  15  years for  sengon.  The properties  tested  were  board density,  moisture   content, thickness  reduction  due  to compression and bending strength.The physical  and mechanical properties  of sengon  wood-wool board which the  wood-wool was soaked  in  cold  water for  24 hours prior  to  board fabrication  were improved.  However, that treatment  did not improve the properties  of rubberwood wood-wool board.   The properties of wood-wool board made from different age groups of tree seem to be similar.
PENGABUH BERAT LABUR DAN KADAR PENGISI PEREKAT TANIN FORMALDEHIDA TERHADAP KETEGUHAN BEKAT LAPIS adi santoso; rodjak memed; Paribotro sutigno
Jurnal Penelitian Hasil Hutan Vol 9, No 3 (1991): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1991.9.3.111-114

Abstract

It has been known that  tannin formaldehyde  resin  is suitable for exterior plywood  adhesive. one   of the source of tannin is Acacia decurrens bark. A study on using tannin formaldehyde from.  Acacia  decurrens   bark has been done  to predict  the effect of  glue spread  and percentage of filler on the plywood   bonding strength. The results show that glue spread has not sigatficant effect on plywood  bonding strength, while percentage of  filler  has significant effect on plywood  bonding strength and all plywood resulted meet German  Standard requirement for  exterior purpose. (AW 100).From  the economic paint of view,  it is recommended. to use glue spread of 150 g/m2 and percentage of filler of 4o%. 
STUDI KASUS PRODUKTIVITAS DAN BIAYA PENGELUARAN KAYU DENGAN SISTEM KABEL LAYANG KOLLER 300 Dulsalam Dulsalam; Djaban Tinambunan
Jurnal Penelitian Hasil Hutan Vol 15, No 8 (1998): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1998.15.8.449-462

Abstract

Studi produktivitas  dan biaya pengeluaran  kayu dengan sistem kabel  layang Koller  30C telah dilakukan di satu perusahaan  di Kalimantan Timur pada tahun 1994. Tujuannya adalah untuk mengetahui  informasi tentang produktivitas  dan biaya pengeluaran  kayu dengan sistem kabel layang Koller 300. Data spesifikasi Koller 300, dimensi kayu yang dikeluarkan,  konsumsi bahan bakar,  waktu kerja, dan  upah tenaga kerja dikumpulkan.  Hasil dari studi  ini adalah sebagai berikut    :1.Untuk persiapan,  operasi dan bongkar alat sistem kabel layang Koller 300 berturut-turut                    memerlukan waktu rata-rata 3,5 ;  3,89 dan 1,39 jam/jalur kabel.2.Diameter  kayu yang  dikeluarkan  berkisar antara 15 -  52 cm dengan rata-rata 29 cm dan                     panjang kayu berkisar antara 4,3  - 30,7 m dengan rata-rata 8,5 m.3.  Volume kayu yang  dikeluarkan  dari setiap jalur kabel  berkisar  antara  4,230 - 25,803                     M3/jalur  kabel  dengan  rata-rata  11,505 m3/jalur kabel  sedang  volume  kayu yang  dikeluarkan setiap rit berkisar  antara 0,101 - 1,521 m3/rit dengan rata-rata 0, 466 m3/rit.4. Produktivitas alat per jalur kabel berkisar antara 1,04 - 2,98 m3/jam dengan rata-rata 2,19 m3/jam sedang produktivitas  ekstraksi kayu berkisar antara  0,85  - 2, 19 m3/jam dengan rata-rata 1,70 m3/jam.5. Waktu kerja  tidak prduktif  berkisar  antara 0,24  -  3,81 jam/jalur   kabel  dengan  rata-rata 1,10 jam/jalur  kabel  (18%   terhadap  seluruh  waktu  kerja  alat).6. Biaya ekstraksi  kayu dengan Koller 300  berkisar antara Rp 22.387 - Rp 59.036/m3 dengan rata-rata Rp 33.322/m3.
EFISIENSI SALURAN DISTRIBUSI PRODUK MEBEL: STUDI KASUS PADA PERUSAHAAN MEBEL UKIR DI JEPARA Achmad Supriadi
Jurnal Penelitian Hasil Hutan Vol 15, No 4 (1997): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1997.15.4.267-278

Abstract

Keberhasilan suatu perusahaan selain akan sangat ditentukan oleh tingkat efisiensi produksi, juga ditentukan oleh ketepatan menggunakan saluran distribusi untuk memasarkan produk perusahaan ke tangan konsumen. Mebel ukir merupakan komoditi kayu olahan yang penting di daerah Jepara yang produknya antara lain dipasarkan di dalam negeri melalui berbagai tipe saluran pemasaran. Penelitian ini dilakukan rmtuk mengetahui efisiensi dari tipe tipe saluran distribusi yang digunakan oleh perusahaan mebel ukir tersebut.Perusahaan mebel ukir yang menjadi objek studi memasarkan produknya melalui 2 tipe saluran distribusi yaitu : Perusahaan → Konsumen (tipe 1) dan Perusahaan →Distributor →Pengecer →Konsumen (tipe II). Untuk menilai efisiensi, dilakukan analisis biaya distribusi dan volume penjualan selama 3 tahun (tahun 1993 - 1995).Hasil penelitian menunjukkan bahwa pada saluran tipe I, persentase biaya distribusi terhadap volume penjualan cenderung terus menurun yaitu dari 3,25 % menjadi 2, 70%). Besamya biaya distribusi untuk setiap satu unit produk terjual juga terus menurun yaitu dari Rp 7.538 menjadi Rp 6.213. Rata-rata persentase perubahan volume penjualan lebih besar dibandingkan dengan rata-rata persentase perubahan biaya distribusi yaitu 63,9 % dengan 48,33%.Pada tipe II, persentase biaya distribusi terhadap volume penjualan menunjukkan kecenderungan yang terus meningkat yaitu dari 2,07 % menjadi 2,57%. Besarnya biaya distribusi. untuk setiap satu unit produk terjual juga meningkat dari Rp 4. 031 menjadi Rp 6. 739. Sedangkan rata-rata persentase perubahan volume penjualan lebih kecil dibandingkan dengan rata-rata persentase perubahan biaya distribusi yaitu 80, 75% dengan 110,80%. Hal tersebut menunjukkan bahwa saluran distribusi tipe 1 telah dikelola secara lebih efisien dibandingkan dengan saluran tipe II. Meskipun demikian didalam upaya memperluas pangsa pasar, keberadaan saluran distribusi tipe II masih diperlukan oleh perusahaan karena dapat lebih memperluas jangkauan pasar produk perusahaan.
SIFAT PEMESINAN BEBERAPA JENIS KAYU ASAL JAMBI Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 12, No 4 (1994): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.1994.12.4.128-131

Abstract

Five wood species originated from Jambi were observed for their machining properties in this study.    Sawing characteristics (feed speed and surface smoothness) of each species were observed to determine  its cutting-ability.  Sawn timbers were then cut to sample boards and air-seasoned to approximately 17% moisture content prior to further machining processes. The examined machining properties include planing, shaping,  boring,  turning and sanding.  Examinations were  undergone according 10 the modified ASTM D-1666 as firstly described in the Forest Products Research Institute Report No.  160 (1982).Results from this study showed that most of the species could be sawn at medium feed speed  with a variation in cutting surface quality, ranging from fair  to rough.   One species, i.e., rengas pantai (Gluta renghas) is fairly difficult  to saw for  its irregular (partly interlocked) grain orientation and the abundant deposition of silica (crystals) in its fiber  structures.   Some species consistently showed good qualities in almost all machining tests, and likely produced excel/en/ surface quality when worked on using sharp culling tools and controlled machining condition.   Wood samples tested in wet condition produced a fairly good planing and shaping quality for most wood species. In  comparison, however, the air-dried samples significantly revealed a better machining quality. Based on the machining characteristics observed on the five wood species from Jambi, it is recommend able to use rengas tembaga, sumpung and rengas manuk for wood working purposes. Whereas, rengas pantai and kempas are more suitably intended   for indoor structural uses.
SIFAT FISIS DAN KIMIA BRIKET ARANG CAMPURAN LIMBAH KAYU GERGAJIAN DAN SABETAN KAYU Djeni Hendra; Ina Winarni
Jurnal Penelitian Hasil Hutan Vol 21, No 3 (2003): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2003.21.3.211-226

Abstract

Briquetted charcoal was experimentally manufactured using the mixture of sawdust and woody slab wastes as the main materials. At first, sawdust wastes were carbonized in a semi-continuous kiln into the sawdust charcoal. Meanwhile, carbonized on woody slab wastes was conducted in a drum kiln yielding the slab charcoal. Further, the resulting sawdust charcoal and slab charcoal were mixed in varying respective portion, i.e. consecutively : (80% and 20%; 60% and 40%; 50% and 50%; 40% and 60%). The mixture was subsequently added with tapioca flour as binding agent at 5 percent, then molded, and compressed under 30-ton hydraulic pressure into the briquetted charcoal. In addition, the briquetted charcoal was also correspondingly prepared from I 00 percent sawdust, and regarded as with 0-percent woody slabs (i.e.100% and 0%). Such mixture in varying portions was further asserted as treatment. The resulting briquette charcoal was subsequently examined of its physical and chemical properties, i.e. moisture content, ash content, volatile matter, fixed carbon, density, compressive strenght, and caloric values.The result revealed that the recovery/yield sawdust charcoal was about 24.57-29.16 percent, while that of slab charcoal was 25.26-39.20 percent. Further, the mixture of sawdust charcoal and slabs charcoal at 40% : 60% portion brounght out the briquetted charcoal with the most satisfactory physical and chemical properties i.e. the moisture content of the briquette charcoal was in the range of 2.50-4.12 percent, ash content 13.22-21.41 percent, volatile matter 20.22-21.94 percent, fixed carbon content 56.65-66.36 percent, density 0.412-0.487 gram per cm3, compressive strenght 16.43-38.13kg per cm2, and caloric value 4515-5834 cal per gram.

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