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INDONESIA
Jurnal Penelitian Hasil Hutan
Published by Pusat Penelitian dan Pengembangan Hasil Hutan
ISSN : 02164329     EISSN : 24428957     DOI : 10.20886/jphh
Core Subject : Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology
Jurnal Penelitian Hasil Hutan adalah jurnal ilmiah nasional yang mempublikasikan tulisan yang telah dicermati oleh Dewan Redaksi dan Mitra Bestari di bidang hasil hutan. Tulisan dalam Jurnal Penelitian Hasil Hutan mencerminkan inovasi dan hasil penelitian dasar dan terapan yang berkualitas di bidang hasil hutan. Topik tulisan penelitian hasil hutan meliputi: 1. Anatomi bahan berlignoselulosa 2. Sifat fisik dan mekanik bahan berlignoselulosa 3. Teknologi serat bahan berlignoselulosa 4. Papan komposit bahan berlignoselulosa 5. Biodeteriorasi dan pengawetan bahan berlignoselulosa 6. Teknologi pengeringan hasil hutan 7. Penggergajian dan pemesinan kayu 8. Pengolahan hasil hutan kayu dan bukan kayu 9. Pengolahan kimia dan energi hasil hutan 10. Ilmu kayu dan teknologi hasil hutan Keteknikan hutan 12. Pemanenan hasil hutan kayu dan bukan kayu
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 1,297 Documents
 109   110   111   112   113 
KUALITAS PAPAN LAMINA DENGAN PEREKAT RESORSINOL DARI EKSTRAK LIMBAH KAYU MERBAU Adi Santoso; Gustan Pari; Jasni Jasni
Jurnal Penelitian Hasil Hutan Vol 33, No 3 (2015): 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.2015.33.3.253-260

Abstract

Komponen kimia polifenol yang diekstrak dari kayu merbau (Intsia spp.) memiliki afinitas yang kuat terhadap resorsinol dan formaldehida dalam kondisi basa, membentuk suatu kopolimer yang dapat digunakan sebagai perekat. Tulisan ini menyajikan penggunaan perekat resorsinol dan ekstrak cair kayu merbau yang mengandung senyawa polifenol yang dikopolimerisasi dengan formaldehida sebagai perekat kayu lamina. Hasil penelitian menunjukkan bahwa kopolimerisasi ekstrak cair limbah kayu merbau menghasilkan resin berbobot molekul 49.658, yang dapat digunakan sebagai perekat dalam pembuatan papan lamina untuk lantai berupa 3 ply-1strip flooring parquet dengan 7 (tujuh) jenis kayu, yaitu: sungkai, karet, kempas, merbau, mangium, mahoni dan sengon. Kualitas perekatan dan sifat mekanik produk tersebut sebanding dengan produk sejenis berperekat impor serta tergolong tipe eksterior sangat rendah emisi formaldehida katagori E0 atau F****.
PENGARUH SUSUNAN LAMINA KAYU KARET TUA TERHADAP SIFAT KEKUATAN BALOK SILANG-I LAMINASI Han Roliadi; Nurwati Hadjib
Jurnal Penelitian Hasil Hutan Vol 28, No 2 (2010): 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.2010.28.2.130-145

Abstract

Perakitan balok silang-I laminasi dilakukan menggunakan kayu karet tua (Hevea brasiliensis) asal pohon karet yang sudah tidak produktif lagi menghasilkan getah lateks (umur sekitar 25-30 tahun). Mula-mula, dolok kayu karet (diameter sekitar 10-25 cm) terlebih dulu dibentuk menjadi lamian (bilah- bilah) melalui penggergajian. Rendemen bilah tersebut (36-39%) masih lebih rendah dari pada rendemen yang umum dari kayu berdiameter besar. Bilah yang dihasilkan dirakit menjadi balok silang-I menggunakan perekat fenol-resorsinol-formaldehida pada suhu kamar. Hasil perakitan menunjukkan kekuatan balok silang-I laminasi dengan profil rekatan horisontal antar lamina dibagian tubuh atau badan (keteguhan lengkung pada batas proporsi = 132.97 kg/cm2, MOR = 184.13 kg/cm2, MOE = 54425.196 kg/cm2, dan keteguhan geser horisontal = 2.9397 kg/cm2) lebih rendah dari pada sifat balok kayu karet utuh berdimensi kecil bebas cacat, tetapi lebih tinggi dari pada balok silang-I laminasi dengan profil rekatan vertikal dan produk balok laminasi (glulam) juga dari kayu karet tua dengan profil rekatan horisontal antar lamina. Di samping itu terdapat korelasi nyata negatif antara sudut jari-jari kayu - bidang rekatan dengan sifat mekanis/ kekuatan balok silang-I laminasi. Ini mengindikasikan prospek positif pembuatan balok silang-I laminasi laminasi dari kayu karet tua dengan profil rekatan vertikal tersebut untuk tujuan konstruksi, karena dapat lebih menghemat pemakaian bahan baku.
A FOSSIL WOOD OF DIPTEROCARPACEAE FROM PLIOCENE DEPOSIT IN THE WEST REGION OF JAVA ISLAND, INDONESIA. Yance I; Mandang Mandang; Noriko Kagemori
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.2003.21.3.259-275

Abstract

Fossil woods in Java Island have been excavated and sold for outdoor ornaments or indoor decoration purposes since 30 years ago. These fossils are in danger of being drained out without known identities, composition and history. This study was aimed to find out the botanical identity and geographical aspect of a newly discovered silicified fossil wood from Banten area in the west region of Java Island. The fossil trunk 28 m in length and 105 cm in diameter was buried in a tuffaceous sandstone layer. The age of the stratum was thought to be Lower Pliocene. A small sample was cut from the outer part of the log and then ground to obtain thin section for anatomical observation. The main anatomical features of the fossil wood are as follows: wood diffuse porous; vessel almost exclusively solitary, vascicentric tracheid present; axial intercellular canal present, distributed in long tangential rows; fibers with distinctly bordered pit; rays heterocellular multiseriate; crystals present in the enlarged parenchyma cells. These features show affinities of the fossil wood to the extant wood Dryobalanops of the family Dipterocarpaceae, regardless of the fact that this genus does no longer exist living in the natural forest of the present day Java Island.
JENIS DAN BANYAKNYA KAYU YANG DIPAKAI DALAM KONSTRUKSI JALAN REL DI HUTAN RAWA PROPINSI RIAU Dulsalam Dulsalam; Apul Sianturi
Jurnal Penelitian Hasil Hutan Vol 1, No 2 (1984): 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.1984.1.2.23-28

Abstract

An  observation on  the  amount  and  species of  wood  used in rail-road  construction in the swamp forests has been carried out in the PT Alam Wanasaki and PT Tenaga Kampar  concession  areas both  located  in Riau.The observation  revealed  that  the wood  species  used in rail-road construction  at the PT Alam  Wanasaki area consist of 24 species  with  a volume  of  243 m3/km. Those  used at the PT Tenaga Kampar area  consist of 12 species comprising a volume  of  204 m3/km and  the species  used at  the PT Alam  Wanasaki area are mostly  helat  (Xylopia malayana Hooh .f.) with  a total  volume  of  71 m3/km. The same  is found  at the PT Tenaga Kampar  area using a total volume  of 58 m3/km. Other wood  species  used  in  rail-road construction in both  concession  areas consist  of a number  of  commercial  species.Wood  species  which  are  considered   suitable in  the  construction  of  rail-road in  the  swamp  forests  of  PT  Alam Wanasaki are  among  others: bintangur (Callophyllum .spp.), gelam   (Eugenia spp.), medang  (Litsea spp.),   menggeris (Koompassia  spp.), pelawan  (Tristania obovata  R.Br.), punak (Tetramerista glabra Miq.),  resak (Cotylelobium melanoxylon Pierre.),  tempurung (Baccaurea spp.), and  tembesu  (Fagraea spp.),  comprising  about 16%  of the  total  volume  used in the  construction.Wood species  selected  for  rail-road construction   at  the  PT  Tenaga Kampar  concession  area are: bintangur  (Callophyllum spp.),  medang  (Litsea  spp.), and punak  (Tetramerista glabra Miq.), comprising  32% of the total amount  of wood used in the  construction.Both  companies  made  efforts  to onlv  use durable  wood  species,  however,  such  species are scarce.  
BEBERAPA MASALAH ERGONOMIK DALAM KEGIATAN PENEBANGAN DI KALIMANTAN BARAT Maman Mansyur Idris; Zakaria Basari
Jurnal Penelitian Hasil Hutan Vol 1, No 3 (1984): 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.1984.1.3.15-21

Abstract

            Preliminary study on ergonomics of forest concession was emphasized on mechanic operator activities with 62 respondents.            The quetioneire consits of ten problem areas, namely audiometry, pollution, vibration, phisycal work load, logging equipment operation, work capacity, psychology of work load, accident, safety, and the inventory of past ergonomic research.            In general, the research indicated that the forest concession holders were not well aware of the importance of ergonomic aspect in their ventures. 
EKSTRAKSI LILIN DAUN PINUS DENGAN TEKNOLOGI SUPERKRITIKALFLUIDA CO2 Bambang Wiyono
Jurnal Penelitian Hasil Hutan Vol 13, No 7 (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.1995.13.7.283-292

Abstract

The objectives of this research is to study the influence of flushing activities on crude waxes yield, and to study the extraction of waxes from pine needles by using supercritical fluid C02 technology. The extraction was carried out at an 400C extraction temperature and at various extraction pressures. consisting of  9,14,24 and 30 MPa. Crude waxes were precipitated in the first cold trap at  6-7 MPa intermediate pressure and 00C, and the rest of  it was precipitated in the second cold trap at an 0,1 MPa with a similar temperature. After extraction, it was always followed by flushing activities  through two steps to get waxes which still remained in the valves and or in the line on the system. First flushing was performed with supercritical fluid extraction without any  sample  in  the  extraction  cell. The second flushing  was  conducted  with a chloroform solvent.  Pure waxes of were purified  and analysed by using High Performance Liquid Chromatography (HPLC).Results indicated that the flushing activities with supercritical fluid extraction without any sample in the extraction cell followed by a chloroform solvent had agreat effect on crude waxes yield. At a 30 MPa extraction pressure and at an 40°C extraction temperature, supercritical fluid extraction with flushing gave crude wax yield four time greater than the cude waxes yield obtained by supercritical fluid extraction without any flushing, even to the crude waxes yield from  the chlorofrom solvent extraction.  The increase in extraction pressure caused an increase in crude waxes, both  obtained from the first and  the second  cold  traps. Moreover,  HPLC analysis of pure waxes revealed  that the elution of pure waxes took 3.70 - 3.90 minutes. lt was also shown that an increase in extraction pressure led to an increase in pure waxes.
ANALISIS PERMINTAAN KAYU LAPIS DI JAWA Satria Astana; Buharman Buharman
Jurnal Penelitian Hasil Hutan Vol 3, No 2 (1986): 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.1986.3.2.14-18

Abstract

One of  the main  important things for  the planning  of production and marketing  development is the demand informations. This research was conducted to analyse the aggregate demand  of plywood  in the districts of Java and its determining  factors.  The result of this research revealed that the aggregate demand  of plywood  in the districts of Java ranged from 679. 731 m3 to 1741.841  m3. The number of people  and the gross domestic regional income in the districts determine  the aggregate demand  of plywood significantly.  The elasticity  of the number of people  is 0.12  and the gross domestic  regional income  is 0.16. In addition,  this research found  that the distribution  of its consumption  consisted  of 60. 02% of the households,  25.22%  of the building contractors,  10.97%  of the furniture  craft industries and  3. 79% of the car body craft industries. 
PENGAWETAN KAYU KARET,AGATHIS, DAN TUSAM DENGAN METODE TEKANAN BERGANTI Barly Barly; Pipin Permadi
Jurnal Penelitian Hasil Hutan Vol 6, No 3 (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.1989.6.3.160-162

Abstract

The  paper  deals  with  an experiment    of  alternating  pressure  method   on  three  wood  species  with  borax.    The  green wood  samples  were  impregnated   with  three percent   borax  solution.   The  results  of  experiment    are as follows  :1.  Wood species  and  treatment   schedule  show  non  significant    effect   on  boron  penetration     and  retention.2.  In  general  the  impregnation  of   the  green  wood  results  in  variable  treatment   and  limited  penetration   and  retention.3.  Retention  and  penetration    showed   better   figures  when  only   modifying    the  treating  cycle   rather  than  using  a  pretreatment.
STABILISASI DIMENSI PADA KAYU TANAMAN KARRI (Eucalyptus diversicolor) DAN JARRAH (E. marginata) - Bagian II : Furfurilasi (Dimensional Stabilization on Regrowth Karri (Eucalyptus diversicolor) and Jarrah (E. marginata) Part II : Furfurylation Jamal Balfas
Jurnal Penelitian Hasil Hutan Vol 11, No 4 (1993): 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.1993.11.4.134-136

Abstract

Wood blocks of karri and jarrah measuring 10 mm (radial) x 25 mm (longitudinal) x 100 mm (tarigential) were ovendried for. 48 hours at 105°C prior to treatment. Furfurylation was carried out by soaking wood specimens in a 98. % furfuryl alcohol solution containing 1 % (w/w) of ZnCl2 as catalist. Three soaking times, i.e., 12, 24 and 48 hours were used. Treatment results are expressed in terms of weight (WG) and volumetric (VG) gains. The ability of treatment to dimensionally stabilize wood blocks is expressed as anti- swelling efficiency (ASE). Results showed that furfurylation imparted substantial increase in weight, volume and dimensional stability of both regrowth eucalypts. Alike acetylation (reported earlier in Part I),furfurylation on karri specimens revealed higher weight gain,volumetric gain and ASE than jarrah. The rate of furfurylation significantly increased with increasing soaking time to 48 hours. Although furfurylation imparted a high degree of swelling reductions comparable to those obtained by acetylation, the furfurylated specimens and a lower ability to resist swelling during prolonged wetting exposure.
CARA MEMATIKAN POHON RASAMALA SEBELUM PENEBANGAN DAN PENGARUHNYA TERHADAP SERANGAN KUMBANG AMBROSIA Paimin Sukartana; Abdurahim Martawijaya
Jurnal Penelitian Hasil Hutan Vol 5, No 6 (1988): 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.1988.5.6.369-374

Abstract

This  experiment was designed  to  find  out  a  proper   method   of  killing  rasamala  trees  (Altingia  excelsa  Noronha) before  felling  to  improve  the value of the wood. The methods  in the testing  include girdling,  singed with  blowtorch  on the girdling  section,   and poisoned   with  5%  sodium  arsenite solution  or triclopyr  483.6 g/l or a mixture  of triclopyr 100 with picloram   50 g/l. The  chemical  methods   was conducted   by pouring  5 ml of each chemical  into each axed part  of about  30 cm  spacing  which  were made  on the base of the tested  trees. Poisoning  with sodium  arsenite  was also done  by brushing  the solution  on   the girdled  areas.  The incidence  of ambrosia beetle attacks was inspected  to study the effect  of  the treatments on  the  susceptibility of  the  tested   trees  to  the  wood  boring  insects  because   this  group  of  the  pests  may  cause severe damage  on  the  newly  dead  trees if improper  treatment   was carried out.  The  experiment  concludes  that :It  seemed  hard  to kill  rasamala trees  by girdling  even  though  the girdled   section  was singed  with  blowtorch.Poisoning   with  5% sodium  arsenite  solution was  effective  if  the chemical  was brushed  on  the  girdled  section. Application  of this method  killed about  80%  of  the tested trees  after six month  period  of treatment.Poisoning  of  rasamala trees  with  483.6 g/l  triclopyr of  a  mixture  of triclopyr 100 with picloram 50 g/l  through  spacing axed  cuts  made on  the  base of  tree  was effective. The  first  formula  killed  about 80%   of  the  trees after six months  to one  year. Application of  the  latter  chemical  showed better  result  because at the  same  treatment  period  this formula killed  more trees,  about  80 - 100% of the tested  samples.In  case of  the  ambrosia  beetle  infestation, the  entire  poisoned   trees  were  more  susceptible   than  that  of the other treatments. Because the most attacks were  mainly concentrated   arround  the  treated  areas,  the  damage  is probably only  meager in economic role. 

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