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Jurnal Penelitian Hasil Hutan
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Search results for , issue " Vol 5, No 6 (1988): Jurnal Penelitian Hasil Hutan" : 9 Documents clear
BUDIDAYA JAMUR PERUSAK KAYU II. PENILAIAN EFISIENSI BIOLOGI PADA MEDIA DARI LIMA BELAS JENIS KAYU Suprapti, Sihati
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 | Full PDF (2491.172 KB) | DOI: 10.20886/jphh.1988.5.6.357-359

Abstract

Oyster  mushroom was cultivated on sawdust media  of  damar (Agathis  sp), durian (Durio  zibethinus Murr.),  teak. (Tectona  grandis  L.f),  jeungjing (Albizia  falcataria  (L.)   Fosb.),   rubber  (Hevea  brasiliensis Muell.  Arg.), coconut  (Cocos nucifera L.),  kemang  (Mangifera  caesia  Jack),   manii (Maesopsis eminii Engl.),   meranti  merah  (Shorea  johorensis Foxw.), nangka  (Artocarpus  integra  Merr.),   pulai  (Alstonia   scholaris R.Br.),    sehiye  (Sterculia macrophylla Vent.),   shiega  (Celtis latifolia Planch.),   sihara (Ganophyllum falcatum BL.)   and pine  (Pinus  merkusii Jung  et  De  Vr.). The  composition   of  the media  was  77,5  % sawdust   mixed   with  20  % rice  bran,   0,5 % lime,  0,5 % trisuperhosphate   and 1,5 % gypsum.  Each media  was mixed   with  distilled   water 125  - 150 % per dry  weight  of  media.  The  media  was  cooled  after  autoclave sterilization    before being  inoculated   with  pure  culture   of  the  mushroom. The  mature   mushroom    was harvested   daily after  the growth  of  the  fruiting  body.  Biological  Efficiency (BE) was calculated  based on the yield  of fresh  mushroom   in proportion  with  the  dry  weight  of  material  used  as media.The  higher BE  was obtained  from  rubber wood   sawdust   media  (86.15  %),  nangka (66.26 %),  kemang  (63,85%) and pulai  (63.52).  The  lowest  BE  was obtained  from damar  (28.22 %).
HASIL DESTILASI KERING KAYU DAN NILAI KALOR DARI BEBERAPA JENIS KAYU HUTAN TANAMAN INDUSTRI Hudaya, Nurmala; Hartoyo, Hartoyo
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 | Full PDF (3856.999 KB) | DOI: 10.20886/jphh.1988.5.6.348-352

Abstract

Rapid  destructive distillation  of  20  Industrial Forest  Plantation Timber  Species  was carried out  by  using a  retort equipped with electrical heating system. This retort was also  connected to  three  condensors and  two  flask   to  catch and  collect  the  distillate  or  condensed   gas.  The  retort capacity was about 4  kg  of  wood.Treatment  conditions    given  in  these  experiment  were  maximum  heating   temperature    of  500°C  and  5  hours distillation time.The product   (charcoal, tar,  pyroligneous liquor) of  the  destructive  distillation   of  wood  showed  a wide variation  in yield   or  composition  depending on  the  wood  species,  age and  growth   location.This  experimental  condition produces   charcoal yield  varying  from  21,38 - 38,00%,   tar from  4.99 - 13.78% and pyroligneous liquor  from  44.91 -  157.17%. Pyroligneous liquor  product  can  be used  as disinfectant,  weed  killer and deodorant. Tar product has a good  prospect  for  wood  preservative  subtance  and  medicinal.The  destructive distillation  of  wood  under   these  experimental conditions produced brittle  and  light  charcoal.  On the  contrarary, hard charcoal  could  be produced from  slower  pyrolisis  process  in a commercial   scale.Proximate analyses  of  charcoal  obtained   from   these  experiments  revealed  that  the  quality  IS  suitable  for both  as raw  material   for  commercial   activated   carbon  and  fuel.Calorific  values of  wood  ranged  from  4285  to  4994  kcal/kg  and  charcoal  from  6746  to  7748  kcal/kg. Based  on  these  calorific  values,  wood  and  charcoal  of  the  20  wood  species  observed  are excellent material  to  be used as fuel.
STRUKTUR ANATOMI BEBERAPA JENIS KAYU HUTAN TANAMAN INDUSTRI M, Sri Rulliaty; Mandang, Y I
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 | Full PDF (9738.589 KB) | DOI: 10.20886/jphh.1988.5.6.326-336

Abstract

Gross and  anatomical  features  of  nine Industrial  Forest  Plantation Timber  Species  were studied  and described  for identification  purposes. The  result  shows  that  each wood  species   can be  distinguished one  from  the other  except those species  which  belong  to  the same genera.
ASPEK SOSIAL EKONOMI TUMPANGSARI HUTAN DI KESATUAN PEMANGKUAN HUTAN (KPH) CIAMIS WILAYAH DAERAH ALIRAN SUNGAI (DAS) CITANDUY Effendi, Rachman; Abdurachman, Akub J
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 | Full PDF (4651.312 KB) | DOI: 10.20886/jphh.1988.5.6.360-364

Abstract

One  of planting  pattern   in reforestation   that  has proved   to  be successful   is  taungya   system.   The  advantage gained by  the  farmers  are especially  in the  fulfilment  of  food  need  in  the short  term.The average income of  farmers from taungya  system  in KPH Ciamis, Citanduy  catchment area, is I47.526,- rupiahs per year per share area (0.219I hectare) or 28.5% of  farmer  total  income.Variables that significantly influence the income from taungya system  (YI)  are production facility  expenditure (XI), labour  cost  (X2),  and share area (X6).  The  relationship  is shown   by  linear regression   model YI  =  154,4588 + l,2791 XI + I,8254 X2  +  0,0214 X6  (R2 =  0,8388).Farmers  income   level  from  taungya  system   has positively  influenced  the  main  plants.  The  regression  model   that shows  the  relationship   between  farmer  income  and  base plane  area is shown   by  the  equation Y2  =  0,3557 + 0,05I3 YI   (R2 = 0,6801) at  99%  confidence   level.
NILAI TAMBAH PRODUKSI KAYU LAPIS, INDAH DARI BEBERAPA PERUSAHAAN DI SUMATRA UTARA Effendi, Rachman; Basuki, Suwidji
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 | Full PDF (7554.008 KB) | DOI: 10.20886/jphh.1988.5.6.378-381

Abstract

One  of  the  products   that  can  be produced   from  secondary  process  of plywood  is fancy  plywood.  The product   is usually  constructed by  overlaying  plywood   with  fancy   veneer  or  other   material  with  nice  decorative  appearance.   This process  will add extra  value to  the final product   intern of selling price as compared  with  ordinary plywood.  In this study fancy. plywood   is constructed   by  overlaying plywood  with  fancy  veneer of  jati,   mahoni  and  rengas.Added  value of fancy plywood  (from plywood)in  three ply mills in North Sumatra  amounted   to Rp.1,032,749,600 in one  year resulted  from 5141 cu.m of  plywood. The  value  is accounted   for  production  factors  with   the  following proportion: 17.73 % from depreciation   factor, 21.94 % from  labour  cost,  and  60.33  % from  profit, taxes,  and  others. The employment created  by  each factory is 48  workers  which  are  equal to 13,920  man days  per year.
ANATOMI PERBANDINGAN KAYU CENDANA (SANTALUM ALBUM L.) DAN EXOCARPUS (EXOCARPUS LATIFOLIA R. Br.) Mandang, Y I
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 | Full PDF (3216.707 KB) | DOI: 10.20886/jphh.1988.5.6.365-368

Abstract

Compared   to  Santalum   album  L.,  the  wood  of  Exocarpus Latifolia R.Br. is lower  in quality.  It  is there necessary  to investigate   the  difference   of  their  wood  features   to overcome   the  unwanted   substitution or fraud possibilities.Microscopic  study  reveals that  there  are many  similarities  in wood  anatomy   between   Santalum album  L.  and Exocarpus  latifolia R. Br. They are anatomically different   only  in pore  diameter  and pore  frequency. The wood  of  Exocarpus latifolia R.Br.  has larger pore  diameter   but  lower pore  frequency. Some   differences   were  also  ob1erved  on  gross  features   of  wood.   Exocarpus latifolia   R. Br.  has  darker  sapwood color,  coarser wood  texture  and  less aromatic odour.
SIFAT-SIFAT KOPAL MANILA DARI PEKALONGAN TIMUR DAN BANYUMAS BARAT Ando, Yacob; Wiyono, Bambang
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 | Full PDF (3305.07 KB) | DOI: 10.20886/jphh.1988.5.6.353-356

Abstract

Manila  copal  is a  natural  rosin obtained by  tapping Agathis  trees. The  resin is generally  collected  every  other  two weeks.  In trade copal is known  of three kinds  namely: Caurry,  Congo, and Manila Copal. Indonesian  copal includes manila copal;  is divided   into  four  groups,   among  others: bua,  loba,  melengket, and  pontianak  copal.The  moisture  content   of  manila  copal from  East Pekalongan and West Banyumas  was 1.74%  and 1.85%; the colour, based on  the LPHH  standard  ranked  3 and  2;  impurities  2.47%  and 2.49%; softening  point  81°C and 92°C.;  ash content 0.04% and  0.08%; acid  number  118.93 and  139.71; saponification number 337.67  and 392.98;  and iod number  36.5  and 42.98,   repectively.Manila  copal from  East  Pekalongan  and  West Banyumas appeared  to have good  quality and  belongs  to  the first qualify   based  on  the  Indonesian Standard.  Manila copal  from  West Banyumas  has a  higher  resin acid content   then  that from East  Pekalongan.
PENGARUH BAHAN BAKU DAN PEREKAT UREA-FORMALDEHIDA TERHADAP SIFAT-SIFAT PAPAN SERAT Siagian, Rena M; Wiyono, Bambang
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 | Full PDF (3494.253 KB) | DOI: 10.20886/jphh.1988.5.6.343-347

Abstract

Properties  of hardboard are not  only  effected by the raw material used and the basic manufacturing process employed but  influenced   by subsequent processing  of  treatment such as gluing,  impregnation, heat  treatment  and oil tempering. The purpose  of  the  research is to study   the  effect   of  raw material  and  urea-formaldehyde    adhe11ive  on hardboard  properties. The  raw  material comprise   of  yute (Corchorus capsularis L),  rosella  (Hibiscus  sabdariffae L),   kena; (H.  cannabinus), linum  (Linum  usitatissimum L), dan lamtorogung (Leucaena leucocephalla). The level of  the urea-formaldehyde adhesive incooperated   in the experiment  were  0 and 1.5 per  cent  based on  oven dry  pulp.The  results  indicate   that  the  raw material used for  hardboard  making  has a significant  effect on pulp  yield,  alkali consumption,  water  absorption,   tensile  strength  parallel  to surface,  and  modulus  of  rupture.   Tensile   strength  parallel  to surface  of  hardboard  was significantly   effected  by adding  urea-formaldehyde adhesive.  The  hardboard  made  of kenaf has the highest  tensile strength  parallel to surface,  and modulus  of rupture,  and high water absorption. For decreasing the latest properties, perhaps  phenol  formaldehyde.  can  be added  to  the stock. 
PEMBUATAN GAS BIO DARI BEBERAPA MACAM LIMBAH BIOMASSA PADAT DENGAN CARA "BATCH CULTURE" Gusmailina, Gusmailina; Hartoyo, Hartoyo
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 | Full PDF (4089.244 KB) | DOI: 10.20886/jphh.1988.5.6.321-325

Abstract

A  laboratory  experiment    on  biogas generation  using solid  waste  in a  batch  culture  under  Thermophillic condition was conducted at the Forest Products Research  and  Development  Centre, Bogor.The solid  waste used in the experiment were rice straw, water hyacinth (Eichornia  crassipes Mart.  Solms)  and rubber wood  (Hevea  braziliensis)  sawdust.Fermentation   condition   for  biogas production   was kept  constant  under  temperature  of 53°C  for 8 days.  Inoculumn used for  fermentation  was  residue from the experiment of  organic municipal solid  waste fermentation.The raw material used in this experiment consisted  of mixture  of  73 gram rice straw and 27 gram water, 70 gram rice straw and  30 gram  water  hyacinth, 38 gram rubber  wood  sawdust  and  62 gram water,  36,25  gram rubber wood  sawdust and  63,75 water hyacinth. To each mixture   was added  900 gram  of  starter  with  dry  matter  content  28%. Each substrate sample   was  then  placed   in  a  1,5 littre  digester.The  result  of  the  experiment   indicates  that  the highest  production   of biogas and methane  were produced   from  rice straw  substrate (0,43  littre  of biogas and 0,21 littre of methane  per gram of straw respectively),  and the efficiency   of biogas produced  was 75%.The   total   calorific value of   biogas   produced was  lower  than   that  obtained   from  direct burning  of  rice straw.  Although    the  calorific  value   of   biogas   is  relatively  low, its  burning  quality is better compared   with direct  burning. Besides that, the residue from  fermentation   process  could  be utilized  as organic fertilizer  and mushroom  media. 

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