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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
 64   65   66   67   68 
PENGARUH UMUR DAN POSISI LETAK RUAS PADA BATANG TERHADAP SIFAT PENGERINGAN TIGA JENIS BAMBU Efrida Basri; Saefudin Saefudin
Jurnal Penelitian Hasil Hutan Vol 22, No 3 (2004): 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.2004.22.3.123-134

Abstract

Bamboo is an important multipurpose plant in Indonesia. It is widely used in industry, construction. furniture, and other purposes. As a raw material like solid wood, bamboo needs to be dried. Proper drying can minimize its dimensional changes during usage. improve strength, and eliminate other processing defects. This study was intended to examine influence of age and culm position on drying properties of three bamboo species, i.e. mayan (Gigantochloa robusta Kurz), tali (Gigantochloa apus Kurz). and hitam (Gigantochloa atroviolacea). The most optimum drying temperature for the three species was also determined in this study. Determination of drying schedule was initially explored using medium temperature (80°C) and observing visual defects that may generate during drying, i.e. splits/cracks, and concave or collapse.Results showed that drying properties of each bamboo species were affected by the age and the culm position. The older tree age and the closer the culm location to the top porsion then the lower the shrinkage. Immature culm had a higher drying rate than the mature one, but it had a lower quality. The most suitable drying temperature for those bamboos was ranging about 30 -50°C. The proper drying temperature, however, still needs, further trials prior to any usage for commercial operation. 
WOOD GASIFICATION IN A FLUIDIZED BED K Maniatis; M Rosid; I M Widnyana
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.1987.4.4.41-47

Abstract

Kayu  Eucalyptus  deglupta  di konversi  da/am perangkat  gasifikasi fluidized bed dengan faktor udara 0,2-0,4. Tujuan penelitian  ini ialah untuk membuat data dasar mengenai : komposisi,  suhu,  hasil, perolehan  kembali  energi dan nilai kalor gas yang dihasilkan  dari gasifikasi  kayu tersebut pada  kondisi  yang  terkendali  dengan  baik,  sehingga  dapat dijadikan  dasar penilaian  bagi jenis  kayu  lainnya.Komponen utama gas yang dihasilkan terdiri dari: hidrogen, karbondioksida,   karbonmonoksida,   metana  dan nitrogen;  sementara  etena dalam jumlah  kecil. Nilai kalor gas bervariasi dari 2,8 hingga 5,4 MJ/Nm3 pada suhu antara 723 sampai  1021°C.  Hasil gas naik dari 1,5 hingga 3,9 kg gas/kg  bahan  baku  (bebas air dan abu) sementara faktor  udara naik  dari 0,22 hingga 0,57. 
PEMANFAATAN KOMPOS KULIT KAYU MANGIUM UNTUK MEDIA PERTUMBUHAN CENDAWAN MIKORIZA ARBUSKULA DAN BIBIT Acacia mangium Willd. Sihati Suprapti; Erdy Santoso; Djarwanto Djarwanto; Maman Turjaman
Jurnal Penelitian Hasil Hutan Vol 30, No 2 (2012): 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.2012.30.2.114-123

Abstract

Bahan baku yang digunakan dalam penelitian ini adalah kulit kayu mangium yang disterilkan dan tidak disterilkan ditambah aktivator kemudian dikomposkan selama 30 hari. Kompos kulit kayu mangium tersebut digunakan sebagai media tanam cendawan mikoriza dan bibit Acacia mangium. Tingkat degradasi kompos dievaluasi berdasarkan perubahan kandungan karbon organik, nitrogen total, kadar hara, dan kapasitas tukar kation (KTK). Hasilnya menunjukkan bahwa penambahan aktivator pada proses pengomposan kulit kayu mangium menurunkan nisbah C/N masing-masing menjadi 21,90 (disterilkan) dan 25,30 (tidak disterilkan). Penambahan aktivator tersebut dapat meningkatkan unsur hara N 0,82-1,09%, P 0,22-0,36%, dan K 0,36-1,12%, dan meningkatkan nilai KTK 31,3-32,7 me/100 g. Kolonisasi mikoriza pada media tanam kompos kulit kayu mangium, menunjukkan bahwa kompos tersebut dapat digunakan sebagai media tumbuh sekaligus media pembawa cendawan mikoriza. Persentase koloni yang tinggi (45%) dijumpai pada media kulit kayu mangium yang disterilkan, ditambah aktivator yang diinokulasi Glomus sp. Pertumbuhan bibit A. mangium pada media kulit kayu mangium yang disterilkan dan ditambah aktivator cenderung lebih tinggi dibandingkan dengan yang ditanam pada media yang tidak disterilkan. Pertumbuhan bibit tertinggi dijumpai pada media tanam yang diinokulasi Gigaspora sp., sedangkan pertumbuhan diameter batang paling besar terjadi pada media yang diinokulasi Glomus sp.
PENGAWASAN ADMINISTRATIF TATA USAHA KAYU DI TPK DAN LOGPOND HPH DENGAN PROGRAM KOMPUTER Hariyatno Dwiprabowo
Jurnal Penelitian Hasil Hutan Vol 12, No 2 (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.1994.12.2.89-95

Abstract

Ministry of forestry requires the forest concession holders to fill in logs administrative forms containing log records to supervise logs production and circulation in forest concessions. However, large amount of logs produced has prevented the provincial forest service and forest district from conducting through examination on the documents turned in by concessionaries.In this study, a computer program intended to help accomplishing the task is created and tried out documents that must be filled in at logyard and logpond of concession. Using simulated logs data the program run on PC could find some deviation in the documents presented in terms of logs statistics.
PENGARUH TANJAKAN DAN VOLUME MUATAN TERHADAP PRODUKTIVITAS LORI DORONG DI HUTAN JATI Dulsalam, Dulsalam
Jurnal Penelitian Hasil Hutan Vol 7, No 1 (1990): 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.1990.7.1.8 - 11

Abstract

An  investigation on the effect of slopes and load volumes  on the productivity  of hand lorry was carried out  at Padangan Forest  District, Unit II Perum Perhutani,  East Java, in 1983.  In the investigation,  four  levels of slopes  (i.e. 3, 4, 5, and 6 percent), four  levels of  load volumes  (i.e. 3.5, 4.0, 4.5, and 5.0 m3) and the crew of 4 workers were used.  The objective was to find  the productivity of  hand  lorry  opearating  on several slopes  and  with  several load volumes. The results reveal that:The productivities of log hauling by hand lorry ranged from : 7.16 to 25.09  m3km/hour   with an average of 16.46  m3km/hour.Higher slope and load volume  caused the decrease in lorry productivity.The relation  of productivity (Y), slope (X 1) and load volume (X2) can  be expressed  by  the following  equation  of linear multiple regression: Y  = 48.626 - 2.199X1 -  5.342X2 with  R2 = 0.58Slopes and load volumes  have highly significant  effect  on productivities.
POTENSI ANTIOKSIDAN DAN SIFAT SITOTOKSIS EKSTRAK KULIT KAYU SEMBILAN JENIS TUMBUHAN DARI TAMAN NASIONAL LORE LINDU Saefudin Saefudin; Efrida Basri
Jurnal Penelitian Hasil Hutan Vol 34, No 2 (2016): 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.2016.34.2.137-145

Abstract

Ekstrak kulit sembilan jenis tumbuhan yang ditemukan di lokasi Taman Nasional (TN) Lore Lindu  telah diteliti potensi antioksidan dan efek sitotoksiknya. Aktivitas antioksidan diuji dengan menentukan nilai peroksida(POV) menggunakan metoda iodometri, sedangkan uji toksisitasnya dengan menghitung  kematian larva udang (Artemia salina) menggunakan metoda Brine Schrimp Lethality Test (BSLT). Hasil pengujian menunjukkan tiga komponen bioaktif (saponin, flavonoid, dan polifenol) terbanyak diperoleh pada 3 jenis tumbuhan yang memiliki POV rendah, yaitu Dysoxylum gaudichaudianum, Gardenia augusta, dan Nauclea orientalis. Efek sitotoksik paling mencolok (Lc50 < 200 μg/ml) diperoleh pada ekstrak Koordersiodendron  pinnatum (170,86 μg/ml), Nauclea orientalis (182,89 μg/ml), dan Kleinhovia hospita (191,35 μg/ml).
KEANEKARAGAMAN FOSIL KAYU DI BAGIAN BARAT PULAU JAWA Y I Mandang; D Martono
Jurnal Penelitian Hasil Hutan Vol 14, No 5 (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.1996.14.5.192–203

Abstract

A preliminai y survey on wood fossil  was carried out at three fossil yards around Ciampea, Leuwiliang and  Jasinga,  West  Java.  The purpose  of the survey was to find  out the diversity of ancient trees of the respective areas.  Fossils examined were limited to those having diameter 30 cm up only.   Identification was made by examining anatomical features  which can be detected by the aid of a 10 x illuminated magnifier.  The results are as follows  : 81. 4 percent  out of 199 fossils  examined  are  belongs  to  Dipterocarpaceae;  among  those  dipterocarp fossils,   19.4 percent  are Dryobalanoxylon,   a  genus  which no longer has  extant living in the present  day natural forest of Java; non dipterocarp fossils  are less than those of dipterocarp;  among them are Alstonioxylon,   Calophylloxylon,   Dillenioxylon,   Ochanostachysoxylon, Tenninalioxylon,  and some fossil  of Leguminosae.   These  results  indicate  that some  time in the past,  during  some already gone epoch, the diversity of  trees  in  the west region of Java island was similar to the diversity of  trees  in Sumatera  and Kalimantan islands nowadays  where dipterocarp trees are relatively  abundant.   Further  study  on  the precisely  described  origin  and  accurately  dated  fossils  is highly recommended.Key words :    Dipterocarpaceae,   wood fossil, Java
SEGMENTASI PASAR JASA REKREASI RUTAN Satria Astana
Jurnal Penelitian Hasil Hutan Vol 15, No 5 (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.1998.15.5.323-336

Abstract

The significant implication of research on further development of forest recreation service depends on the progress of market research on the service itself. As a part of the effort to addressing such issue, this study aims at identifying the market segments of recreation service at three sample forest units, namely: Carita, Situgunung and Sukamantri, all in West Java. The study reveals that university students, private officers and high school students, mostly living in Jakarta, were respectively significant variables for segmenting markets of the service offered. In addition, the marketing management of the service has been ineffectively designed, targeted and promoted to other growing markets such as young families with middle income status.
MUTU DOLOK, BERAT JENIS DAN KEKUATAN BALOK- LAMINA KAYU MANGIUM (Acacia mangium Willd. ), DAN KAYU SUNGKAI ( Peronema canescens Jack.) Bakir Ginoga
Jurnal Penelitian Hasil Hutan Vol 16, No 2 (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.1998.16.2.79-92

Abstract

Penelitian mutu dolok, berat jenis dan kekuatan balok-lamina telah dilakukan pada kayu mangium (Acacia mangium Willd. ) berumur 10 tahun, dan kayu sungkai ( Peronema canescens Jack.)berumur 15 tahun dari hutan tanaman di Serang, Jawa Barat.Diameter dolok ( panjang 250 cm ) bagian pangkal batang (= A), bagian tengah (=B) dan bagian atas (= C) berturut-turut, rata-rata 24 cm, 20 cm. dan 18 cm untuk kayu mangium. Sedangkan kayu sungkai 17 cm,13 cm dan 10 cm. Kebundaran dolok dari dua jenis kayu ini tergolong hampir bundar ; kesilindrisan dolok A kayu mangium: dan dolok kayu sungkai, tergolong hampir silindris, sedangkan dolok B dan C kayu mangium tergolong silindris,Berat jenis kayu basah, rata-rata = O,893 ( = berat kayu basah 893 kg/m3) untuk kayu mangium ; kayu sungkai = 0,844 ( = berat kayu basah 844 kg/m3 ). Berat jenis kayu kering udara rata-rata = 0,47 ( kadar air 11%) untuk kayu mangium; dan 0,51 (kadar air 12,5 %) untuk kayu sungkai.Terdapat hubungan linier positif yang sangat nyata antara berat jenis kering udara dengan posisi/jarak dari empulur ko arah luar/kulit ; yakni lebih rendah pada jarak sepertiga jari-jari dari empulur, kemudian meningkat pada duapertiganya, dan paling tinggi pada bagian kayu paling luar. Kekuatan dua jenis kayu tersebut tergolong kelas kuat Ill - II.Modulus elastisitas rata-rata balok-lamina (3 lapis, perekat PF). pada uji lentur dengan pembebanan titik tengah (centre point loading)I 05.891 (x I 03 kg/cm2) untuk kayu mangium ; dan 79,862 (x IO3 kg/cm2) untuk kayu sungkai.Uji lentur dengan pembebanan pada dua titik beban (two point loading) balok-lamina tersebut, modulus elastisitas (=E) dan lentur patah (MOR F ). masing-masing rata-ratanya =126,470 (x103 kg/cm2) dau 578,59 kg cm2.untuk kayu mangium ; 97,051 (x103 kg cm2) dan 5 I 0,35 kg/cm2. pada kavu sungkai. mutu kekuatan tersebut, menurut standar JAS torgolong "strength grade" E I 20 - F 330 untuk kayu mangium, dan E 95 - F 285 untuk kayu sungkai. . Kekuatan geser balok-lamina tersebut, rata-rata 59,28 kg/cm2untuk kayu sungkai .tergolong kelompok jenis (wood species group) 6 sedangkan kayu mangium 24,35 kg/cm2. tergolong di bawah kelompok jenis 6.Kekuatan tekan sejajar arah serat kayu mangium , rata-rata = 379.13 kg/cm2 . tergolong dalam kelas kuat II. Delaminasi balok-lamina dari kayu sungkai memenuhi standar JAS, sedangkan kayu mangium belum memenuhi standar ini.
PENGARUH SUDUT KERAT DAN BAGIAN BATANG TERHADAP SIFAT PENGGERGAJIAN KAYU KELAPA (Cocos nucifera. L.) Osly Rachman
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.1986.3.2.28-32

Abstract

Eighteen green cocowood samples, 3 m in length each were sawn into 3 cm thick boards. Trunk samples consisted of two groups, butt logs and top logs. Each group was sawn with 3 degrees of hook angle, namely 19,22 and 25 degrees. Sawing properties, i.e., power consumption, sawing productivity and lumber recovery were related with hook angle and trunk portion. The results reveal that trunk portion and hook angle had a significant effect on power consumption. The butt logs consumed power higher than top logs. Trunk portion had no effect on sawing productivity but greater hook angle tends to increase the productivity. Hook angle and trunk portion had no effect on recovery.

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