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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 1,297 Documents
 113   114   115   116   117 
PENETAPAN UKURAN SASARAN SEBAGAI USAHA PENINGKATAN EFISIENSI PROSES PENGGERGA.JIAN DI LIMA KILANG PENGGERGAJIAN Osly Bachman; Syarlf Hidayat
Jurnal Penelitian Hasil Hutan Vol 9, No 1 (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.1991.9.1.24 - 27

Abstract

nlri•t a.  Is  ou   of  the factors that determine aawin6 efficiency. Tlls objectiue of thit dudy   wa  to provide the lnfonnatlon  on the •wmlllfnl  e('ficMney in 80me    Indonaian  •wmillt.   The  data for the analy.U  were• from 8 •wmilk In  Central .llUll and 2 •wmllla  In .limbL  Ou   hundred board• from each •wmlll   were randomly tuleen to evaluate the uariition of  the tlaiclenna within and betroeen t~   board•, and to determine the deviation of the board  tlaicleu•  from the ,.,,.,    ,,_  in each •wmlll.'f1ae  tlaicleJllla  between the board•  waa fQund to be more •riable   compared with the tlaicle,..,, within the board&. EllfJJthoulla tlN laf61aat deviation of  the board• found In tlaia atudy  wa• llelow PPKGRI atandard,  ..,,.ation    waa made •lam ro minlmlH tlaiclenaadeviation, and the po•ible  lmprouement and maintenance of the aetwork.
ANATOMI DAN KUALITAS SERAT KAYU Sissi Artistien; Y I Mandang
Jurnal Penelitian Hasil Hutan Vol 20, No 3 (2002): 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.2002.20.3.243-247

Abstract

Since 1998. Indonesia has been importing wood items in shapes and species from other countries. This situation should not happen if we were able to use local wood species optimally. Wood anatomy of Hibiscus macrophyllus and Artocarpus horridus have been described for identification purposes and evaluation of the appropriate uses.Several particular important features for identification have been observed, as follows : (a) axialparenchyma diffuse in aggregates in Hibiscus macrophyllus. and axial parenchyma aliform in Artocarpus horridus, (b) Ray and fibers storied in Hibiscus macrophyllus and helical thickenings in ground tissue fibers in Artocarpus horridus. (c) mineral inclusions present in Hibiscus macrophyllus in the form of prismatic crystals and druses.The effect of height (upper. middle, and bottom trunks) and distance from the pith (core of the trunk) was significant on fiber dimensions of Hibiscus macrophyllus and Artocarpus horridus. However, such interaction did not bring about significant effect on the fiber wall thickness. About fiber length, it decreased with height levels from the bottom toward the top portion of trunk. Meanwhile, the fiber length increased from the pith toward the portion adjacent to the bark.The relationships between distance from the pith (X) and fiber length (Y) of Hibiscus macrophyllus can be described in three regression equations, as follows: Y = 749 + 1896X + 998X2, R1= 0.4505 (top portion), Y = 664 + 2419X - 1410X2, R2 0.4729 (middle portion), and Y= 1431 + 430X 270X - R1 - 0.0249 (bottom portion). likewise, the corresponding three regression equations for Artocarpus horridus are Y 1177 + 1537X - 927X2 R2- 0.2538 (top portion), Y - 1037 + 1207X - 314X2,R2 0.5519 (middle portion), and Y = 1480 + 969X 674X2, R2= 0.0625 (bottom portion).The fibers of Hibiscus macrophyllus and Artocarpus horridus have a medium quality. These species are therefore suggested for pulp and paper. Hibiscus macrophyllus is suggested too for light construction and mebel.
KARAKTERISASI DAN POTENSI KATALIS KARBON AKTIF TERSULFONASI LIMBAH KAYU PADA REAKSI HIDROLISIS SEKAM PADI MENGGUNAKAN MICROWAVE Lisna Efiyanti; Sutanto Sutanto; Nailah Hakimah; Dian Anggraini Indrawan; Gustan Pari
Jurnal Penelitian Hasil Hutan Vol 37, No 2 (2019): 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.2019.37.2.67-80

Abstract

Biomassa berlignoselulosa merupakan bahan baku berbagai produk yang menjanjikan untuk dikembangkan. Salah satu biomassa berlignoselulosa yaitu limbah yang didapatkan dari sisa penggergajian kayu untuk kepentingan industri, dapat dimanfaatkan sebagai bahan baku pembuatan karbon aktif yang berfungsi sebagai katalis. Pada penelitian ini, dilakukan proses pembuatan karbon aktif dari limbah campuran kayu kamper dan meranti melalui proses pirolisis suhu 500 °C yang dilanjutkan dengan proses sulfonasi menggunakan H2SO4 10N. Produk karbon aktif tersulfonasi (KA-SO3H) kemudian dikarakterisasi yang meliputi rendemen, kadar air, kadar abu, kadar zat terbang, karbon terikat, daya jerap iod sesuai SNI 06-3730-1995, keasaman menggunakan adsorpsi amonia, dan gugus fungsi menggunakan analisa FTIR. Selanjutnya karbon aktif tersulfonasi diuji aplikasinya pada reaksi hidrolisis sekam padi menggunakan microwave dengan variasi bobot sekam padi sebesar 2, 4, 6, 8, dan 10 g pada daya 400 dan 600 W selama 5, 7, dan 9 menit. Kadar glukosa filtrat hasil reaksi selanjutnya dianalisis menggunakan metode asam dinitrosalisilat (DNS). Kondisi optimum reaksi hidrolisis diperoleh pada penggunaan katalis karbon aktif tersulfonasi (daya 400 W, rasio sekam padi:katalis 1:8, serta waktu 9 menit) menghasilkan kadar glukosa sebesar 330,51 ppm dengan persen perolehan glukosa 61,97%, dan energi yang diperlukan sebesar 216 kJ.
PENELITIAN PEMBUATAN METIL ESTER ASAM LEMAK RANTAI SEDANG DAN PANJANG SERTA PEMURNIAN GLISEROL DARI MINYAK KELAPA MURNI Mappiratu Mappiratu; Ijirana Ijirana
Jurnal Penelitian Hasil Hutan Vol 28, No 4 (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.2010.28.4.415-426

Abstract

Penelitian ini bertujuan untuk mendapatkan kondisi optimum metanolisis minyak kelapa murni (MKM) dalam reaktor berpengaduk, metode pemurnian gliserol dan metode pemisahan metil ester asam lemak rantai sedang dari rantai panjang. Hasil penelitian menunjukkan MKM yang dihasilkan memenuhi persyaratan sebagai bahan baku metil ester asam lemak, sebab MKM yang dihasilkan mengandung air dan asam lemak bebas (FFA) mengandung asam laurat yang tinggi yaitu di atas 50% (52,86%). Kecepatan pengaduk dan waktu reaksi berpengaruh terhadap produksi 500 rpm dan waktu reaksi 50 menit. Pada kondisi tersebut fraksi massa metil ester asam lemak mencapai 100%. Metode pemurnian gliserol berpengaruh terhadap derajat kemurnian gliserol, dengan derajat kemurnian gliserol tertinggi adalah 98,04% yang diperoleh dari metode pemurnian ekstraksi dan netralisasi. Hasil fraksionasi metil ester asam lemak menghasilkan enam fraksi, tiga fraksi yaitu (fraksi I dan II dan VI) mengandung metil laurat yang lebih rendah dari MKM asalnya, dan tiga fraksi (fraksi III, IV dan fraksi V) mengandung metil laurat di atas MKM asalnya (di atas 70%). Fraksi VI dinyatakan sebagai metal ester asam lemak rantai panjang dengan rendemen 50% dari total metil ester asam lemak.
PENCARIAN PENGGANTI KAYU JELUTUNG (Dyera spp.) UNTUK BAHAN BAKU BATANG PENSIL Y I Mandang
Jurnal Penelitian Hasil Hutan Vol 14, No 6 (1996): 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.1996.14.6.211-230

Abstract

The importance of suitable wood for pencil slat is primarily for school children under eight years old who still not have sufficient skill in taking care themselves from the danger of using sharp tools. Jelutung wood has been the main source of pencil slat in Indonesia for about 20 years. It can easily be peeled with pencil sharpener specially designed for children usage. However, the supply of jelutung wood is no longer sufficent to meet the rising demand of pencil slat. It is therefore necessary to search for alternative.Experiment with pulai (Alstonia spp) which has nearly the same physical properties with jelutung showed lower pencil quality. Pencils made of pulai are generally more difficult to peel with pencil sharpener. The main cause lies in the anatomical structure of wood. Parenchyma distribution patterm in pulai are tangentially banded, with frequency ranges from 1 - 4 bands per mm radially. Parenchyma distribution pattern in jelutung are scalariform or diffuse in agregate, forming short tangential lines between the rays, with frequency ranges from 6 - 9 lines per mm radially.Bayur (Pterospermum spp) is known to has parenchyma distribution pattern similar to jelutung 's. Experiment with P.celebicum, P.elongatum, P.javanicum and P.diversifolium with sample specific gravity up to 0.50 showed easy peelability. Morever the colour of wood is pink to red brown so it does not need staining with colour substance as usually being done for jelutung and pulai. It is therefore recommeded to use bayur as jelutung substitute in pencil manufacturing. However, to guarantee the continuity of supply, bayur is need to be planted from now on. For bayur is suitable, not only for pencil slat but also for many other purposes.Key words : Pterospermum. wood anatomy, pencil slat
PENENTUAN FAKTOR KONVERSI DALAM PROSES PENGOLAHAN ROTAN SEBAGAI DASAR PEMBAYARAN TARIF JURAN HASIL HUTAN DAN EFISIENSI PRODUKSI Jasni Jasni; Osly Rachman; Jamaludin Malik
Jurnal Penelitian Hasil Hutan Vol 19, No 3 (2001): 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.2001.19.3.175-184

Abstract

Conversion factor is a value representing the conversion in rattan processing. The convert mainly happened on physical properties such as moisture content and specific gravity. They convert volume and weight. That conversion factor is important to be determined accurately, because it will affect production cost and forest product's fee paid by rattan producer.Four species of a large and small diameter rattan were studied i.e. Seuti (Calamus omatus Bl), Bubuay (Plectocomia elongata Bl) Seel (Daemonorops melanochaetes Becc.) and Pelah (Daemonorops rubra Bl.). The conversion factor was counted on the basic of weight and volume decreas.The results indicated that conversion factor of large rattan from fresh rattan to polished are 35.6­41.2% by weight and 68.5­83.0% by volume. Conversion factor of small rattan that processed until splitting are 28.5­25.1%  skin and 7.3­9.8 % by core weight.
DIMENSI SERAT DAN KOMPOSISI KIMIA KAYU ALPOKAT Yacob Ando
Jurnal Penelitian Hasil Hutan Vol 5, No 2 (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.1988.5.2.77-79

Abstract

The  fiber  dimension   and  chemical composition of  Persea sp. are presented  in this report.  The analyses include determination   of the  fiber  dimension (length, diameter cell  wall thickness, and Runkel ratio), and chemical composition. (cellulose, lignin, pentosan, ash,   extractives, and solubility in one percent  sodium hydroxide  solution).The study  reveals that the average  fiber length is 1105.36 µ, diameter 19. 09 µ,  cell wall thickness  2,36 µ and Runkel ratio  0.37.  The  cellulose  content amounts to 45.46  percent,  lignin 23.71 per cent,  pentosan  19.67 percent and ash 1.27 percent.The  solubility  in cold  water ; was found to be  5.43  percent;  in hot  water  5.55  percent, in alcohol  benzene 1:2 ratio,  4.02  percent  and in one  per cent sodiumhydroxide  solution 11.36 percent.Based on the  fiber dimension and the chemical composition, it was found that Persea wood  is suitable for producing good  quality  paper.
SIFAT PAPAN WOL KAYU DARI 10 JENIS KAYU NUSA TENGGARA BARAT l M Sulastiningsih; Rodjak Memed; Paribotro Sutigno
Jurnal Penelitian Hasil Hutan Vol 9, No 5 (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.1991.9.5.183-188

Abstract

The results of laboratory   test of wood-wool  board properties made fram ten wood species obtained from Nusa  Tenggara province are reported in   this paper.   The properties tested were board  density,   moisture  content,  thickness  reduction  due  Io compression   and  benJing strengih.The Study  revealed   that the average yield of  wood-wool was 423,6 kg per cubic  meter of  log input.   The wood-wool   of  Anthoceplus cadamba  Miq.  and Anthocephallus  sp.  must  be soaked  in cold  water for  24 houn   prior  to manufacturing   of wood-wool   board,  whereas she other species did not require soaking.   The physical  and mechanical  properties  of wood-wool  board from  nine wood  species  mineralized  with CaCl2 solution  were in conformity   with the  DIN  1101 standard.  However, only  three wood  species   mineralized   with Ca   (OH)2  suspension met  the standard  requirement.
VARIASI KEASAMAN DAN KAPASITAS PENYANGGA KAYU TAMPUI BERAS (Baccaurea macrocarpa (Miq.) Muell.Arg.) dan MANGGIS HUTAN (Garcinia cornea Miq.) Krisdianto Krisdianto
Jurnal Penelitian Hasil Hutan Vol 31, No 4 (2013): 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.2013.31.4.242-249

Abstract

Keasaman kayu adalah faktor penting yang mempengaruhi pengkaratan besi yang digunakan pada kayu dan kualitas perekatannya. Keasaman kayu tidak hanya bervariasi dalam jenis kayu, namun juga di berbagai lokasi dalam satu pohon. Tulisan ini mempelajari nilai pH dan kapasitas penyangga asam dan basa pada berbagai lokasi dalam pohon, dari dua jenis  kayu andalan Riau, yaitu tampui beras (Baccaurea macrocarpa (Miq.) Muell. Arg.) dan manggis hutan (Garcinia cornea Miq.). Pengukuran pH dilakukan dengan pH meter pada larutan hasil ekstraksi serbuk gergaji dalam air panas, sedangkan kapasitas penyangga diukur dengan cara titrasi asam dan basa kuat. Hasilnya menunjukkan bahwa rata-rata nilai pH kayu tampui beras adalah 5,2, lebih asam dari kayu manggis hutan dengan nilai pH 6,3. Kedua jenis kayu bersifat asam dengan pH kurang dari 7. Berdasarkan ketinggian pohon bagian pangkal lebih asam dari bagian tengah dan ujungnya, sedangkan berdasarkan potongan melintang nilai pH di bagian gubal lebih tinggi daripada di bagian terasnya. Kapasitas penyangga asam lebih tinggi dari kapasitas penyangga basanya.
KONDISI TEGAKAN TINGGAL DI KAW ASAN DUA PERUSAHAAN HUTAN DI RIAU Sona Suhartana; Maman Mansyur Idris
Jurnal Penelitian Hasil Hutan Vol 14, No 4 (1996): 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.1996.14.4.129-137

Abstract

Log  skidding  activities  using  tractors  usually  caused  high  residual stand  damages.  To reduce the residual stand damages, the factors  influencing them must be identified. A study was carried out at two forest  concessions in Riau in  1995. The aims of the study are :  1) to find  the level  of  residual  stand  damages  caused  by felling  ang skidding,  2) to  identifY   the  factors influancing the  residual  stand  damages  and  3) to find  the way of  reducing  residual stand damages.Data collected  were the number  of  felled  tress,  trees with diameter  20 cm and  up and damaged trees.  The data was analysed by using the multiple regression.The results of the study show : 1)  The average of residual stand damages caused by fellingis 11.5 %; 2) The average of residual stand damages caused by skidding  is 15.4  %; and 3) The influence of the number of felled  tress, stand density and the slope were highly  significant to residual stand damages.Knowing the factors  influencing  the residual stand damages, ones should be easy to find the way of reducing  that damages.Key words :   felling, skidding, felled trees, residual  stand damage

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