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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 5 Documents
 1 
Search results for , issue "Vol 13, No 3 (1995): Jurnal Penelitian Hasil Hutan" : 5 Documents clear
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 | Full PDF (3991.364 KB) | 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.
PENGOLAHAN MINYAK KEMIRI DENGAN CARA PELARUTAN DAN PENGEMPAAN Bambang Wiyono
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.1995.13.3.110-117

Abstract

The objective of this research is to study the processing of candle nut oils by using solvent extraction and pressing techniques. In a solvent extraction technique, several solvents were applied in the experiment. The choice solvent was used to extract the treated candle nut seeds. In a pressing technique, five levels of pressing temperature were applied to extract untreated candle nut seeds. The effect of the temperatures was calculated by a complete randomized design. Relationship between the pressing temperature and oil properties was analysed with a polynomial orthogonal method.Results showed that a hexane solvent with pure analytical grade was the best solvent to extract candle nut oils as indicated by the highest yield of oils. Using this solvent, a dry-frying treatment on candle nut seeds gave the highest yield of oils, compared boiling and control treatments. In a pressing technique, the increasing of pressing temperature gave a highly significant effect on yields, specific gravity, peroxide and iodine numbers. It also gave a significant effecr on saponifiable number. A polynomial orthogonal analysis showed that pressing temperatures had a highly significant quadratic relationship to oil yields or iodine number, a linear relationship to peroxide number or spesific gravity, and a significant cubic relationship to saponification number. Based on the regression equation for iodine number, the optimum value of iodine number was obtained at a 93° C pressing temperature. At this temperature, the oil yield which could be produced was 59, 79 %. The candle ma oil produced at this temperature was the best oil quality, as indicated by the highest value of iodine number, 97.28.
SERANGAN SERANGGA PERUSAK PADA CONTOH KAYU DI GUDANG PUSAT PENELITIAN DAN PENGEMBANGAN HASIL HUTAN DAN SOSIAL EKONOMI KEHUTANAN BOGOR Paimin Sukartana
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.1995.13.3.118-126

Abstract

Since establishment in around 1920, Forest Products and Forestry Socio-economics Research and Development Centre (FPFSRDC) Bogor, Indonesia continuosly collects various wood samples from throughout the country's forest for experimental purposes. Some wood specimens were kept in xylarium as xylotheca, and some others, the rest of experimental samples, were kept in storeroom.An observation was conducted to evaluate deterioration of the wood samples kept in storeroom caused by dry-wood termites, powder-post beetles and pin-hole borers. Of the 464 pieces of wood samples representing 84 wood species, number of samples attacked by dry- wood termites and pin-hole borers was much higher than that by powder-post beetles. Evaluation of the deteriorating grade of the wood samples having been mostly stored for more than 30 years caused by the termites infestation showed that about 37 and 45 %, each represents 38 and 24 wood species, of the wood samples could be respectively categorized into very resistant and resistant, the rest, about 10, 5 and 1 %, each of 15, 6 and 2 species, were classified as moderate, not resistant and very not resistant. Among the highly resistant wood group, 27 species were uninfested at all.Deteriorating grade caused by the pin-hole borers beetles was not recorded, but it seems to be not so important than that caused by the other pests. Even though powder-post beetles only infested a small number of the wood species, they caused heavy damage to their hosts.
Pengaruh komposisi perekat tanin urea formaldehida terhadap keteguhan rekat kayu lapis meranti 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.1995.13.3.87-93

Abstract

Based on previous  research  tannin formaldehyde  resin from  Acacia   decurens     bark can  be used for  exterior plywood adhesive.  To reduce  the cost,   the effect of urea addition  to produce tannin   urea formaldeliyde   resin has been  studied.   The other treatment  employed is percentage of paraformaldehyde as hardener.The  results  show  that   the  properties  of  tannin  urea formaldehyde   resin  conform  with Indonesian standard for  phenol formaldehyde  resin.   The effect  of weight ratio based on mol ratio on  the plywood  bonding strenght is significant,  while the effect ofpercentage  of hardener   is not significant.    the  weight ratio tannin.urea =  1:2 with three percentages of hardener meet German standardfor exterior plywood (type AW-100).   The  weight ratio tannin urea =  1=2,5  with 2,5%   and 5% hardener  meet the standard, while the weight ratio tannin:urea  =  1:3  do not meet the standard. The plywood bonding strenght  tends    to  decrease if using more urea.  Based on economic consideration,  it is recommended 10   use weight  ratio tannin.urea  =   1:2,5  based on  mol  ratio with percentage of hardener 2,5%   of liquid resin.
PRODUKTIVITAS DAN EFISIENSI PEMANENAN KAYU DENGAN TEKNIK PENEBANGAN POHON SERENDAH MUNGKIN DI HUTAN PRODUKSI ALAM: STUDI KASUS DI TIGA PERUSAHAAN HUTAN DI KALIMANTAN TENGAH Maman Mansyur Idris; Sona Suhartana
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.1995.13.3.94-100

Abstract

This  paper   presents   the  results   of  the  study  of  wood  harvesting   productivity  and  efficiency when   practicing   the   lowest  possible   felling   technique.  The  case   study   was  selected   in   three logging   companies    in  Central    Kalimantan    in   1994.   Then,    the   results   are  compared   lo  those obtained  from  conventional   felling  technique.the  results  of the  study  are  as  follow  :1.The   results   of  wood   harvesting    productivity   is  25,2 m3/hr   for   lowest   possible   felling technique  and  28,8  m3/hr for   conventional  felling.  This difference   is  statisticallv   significant.2.The  average   of  wood  harvesting    efficiency    is  86, 1   % for   lowest   possible   felling    technique and   82,1   % for  conventional    felling   technique.   This   difference of  1,28 m3/tree  is  highl significant.3.The  average   of stwnp  height   when  practicing    the  lowest possible  felling technique  is 0,45 m, while for  conventional  felling  technique   is 1,21 m.

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