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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 4 Documents
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Search results for , issue "Vol 19, No 1 (2001): Buletin Penelitian Hasil Hutan" : 4 Documents clear
PENGARUH LAMA PEMASAKAN BIJI TERHADAP RENDEMEN DAN SIFAT FISIKO-KIMIA MINYAK KEMIRI Erra Yusnita; B Wiyono; Hartoyo Hartoyo
Jurnal Penelitian Hasil Hutan Vol 19, No 1 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2441.756 KB) | DOI: 10.20886/jphh.2001.19.1.1-8

Abstract

Kemiri (Aleuritus mollucana Willd) plants are widely distributed in the tropical and sub tropical regions. Meanwhile, kemiri plant grows vastly almost anywhere in Indonesia. Kemiri nut meg can be used not only as food-seasoning, ingredients but also as a traditional medicine. The kernel portion of kemiri nut has high nutrition and energy (calorific) values, and so does its oil. The nut, is the meat part after removing the kemiri thell, could is further produced oil after having undergone certains extractions process.Kemiri nut oil has such specific characteristics that being easily dried under open air. Therefore, this oil can be used as volatilizing agent in the manufactures of paint and varnish.In addition, the properties of kemiri nut oil are affected by its extraction methods and quality of its raw material (kemiri nut). In this regard, the study is conducted to learn the effect of cooking duration on the yield and physico-chemical propertiesof the resulting oil. The aim of this study is to find out the optimal cooking duration capable of producing oil with satisfactory qualities.The results reveal that increase in the cooking duration are affected significantly the yield, specific gravity, light transmittion, free fatty acid (FFA) content, and iod number of the oil. Cooking duration for 30 minutes turned out to give optimum condition with respect to oil properties, i.e. yield at 49,94%, iod number = 158.657; FFA = 1.1399; specific gravity = 0.9211, and transmittion = 70.43.Keywords : yield, physico-chemical properties, cooking duration.
KERUSAKAN TEGAKAN TINGGAL DAN PRODUKTIVITAS KERJA PADA TEBANG PENJARANGAN SECARA SELEKTIF; KASUS DI SATU PERUSAHAAN HTI DI SUMATERA SELATAN Sona Suhartana; Dulsalam Dulsalam
Jurnal Penelitian Hasil Hutan Vol 19, No 1 (2001): Buletin Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2560.556 KB) | DOI: 10.20886/jphh.2001.19.1.9-17

Abstract

The study was carried out at a timber estate company in South Sumatera in 1999. The aim of the study is to know the effect of selective thinning to residual stand damage and work productivity.Data collected were: thinned and damaged trees; residual stand; thinning time; diameter and length of thinned trees. The data was analyzed by tabulation.The results of the study showed that the average of residual stand damaged and the average of work productivity in selective thinning are respectively 6.22% and 56.167 m3/hour.Key words : Selective thinning, residual stand damaged, work productivity.
PERBANDINGAN PENYARADAN KAYU DENGAN SISTIM MANUAL DAN EKSAVATOR DI HUTAN RAWA BAGIAN Ill : KAJIAN TEKNIS, EKONOMIS DAN EKOLOGIS Wesman Endom; Zakaria Basari
Jurnal Penelitian Hasil Hutan Vol 19, No 1 (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.2001.19.1.19-39

Abstract

Modified excavator is one of heavy equipment that might be useful and environmentally friendly to be used for operational logging extraction especially in swampforest. It is therefore besides convenient and powerful, it is also helpful as an effective alternative in anticipating the weakness of manual system which is called "kuda-kuda'.Related to the case, a study by implementing both manual system and excavator was done in a forest concession, i.e. PT. Inti Prona, at cutting block covering the 1997/1998 area that located under management of Sub Forest District Dumai, Riau Province. The study covered aspects of extraction productivity, extraction cost, and logging impact on the possible damage of residual forest stands due to the implementation of both systems.The result showed that the average of logs extraction productivity was 16.80 m3.hm per hour. With respect to the ecological impacts, it was found that residual forestst and damage occurred at 17.29% per ha (at pole stage) and 17.17% per ha (at tree stage). Further, operation cost hauling was assessed at Rp 5,600 per m3 of extracted log.Meanwhile, manual log extraction revealed productivity at 2,46 m3.hm per hour. Ecological impact due to constructionsof manual road extraction system and landing site (TPn) was the occurrence of damage to pole and tree stages at 28,25% and 34,33%, respectively. In the same occasion, cost of manual extraction was about Rp 23.000 per m3.Keywords : excavator, productivity, damage, tree, poles and extraction cost
ANATOMI DAN KUALITAS SERAT SEMBILAN JENIS KAYU KURANG DIKENAL ASAL KALIMANTAN TIMUR Y I Mandang; Usep Sudardij
Jurnal Penelitian Hasil Hutan Vol 19, No 1 (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.2001.19.1.41-67

Abstract

One way to overcome the shortages of raw material for wood based industries in Indonesia nowadays is to utilize the lesser known wood species. Therefore, the basic properties of these lesser known wood species should be studied. Wood anatomy of nine lesser known wood species from East Kalimantan have been observed and described for identification purposes and for evaluation of their properties and then appropriate uses.For identification purpose several main features have been noted : 1) Perforation plat scalariform in Mastixia trichotoma and Drypetes sp.; 2) Closely spaced parenchyma bands and radial intercellular canal in Ficus variegata; 3) Parenchyma reticulate in Drypetes sp, Diospyro macrophylla and Koilodepas sp.; 4) Fiber septate in Glochidion philippicum; 5) Rays almos exlusively homocelullar with gum-like deposite in vessels o/Lansium sp.Seven out of nine wood species examined containfibers of medium quality for pulp and paper among others : Blumeodendron kurzii, Ficus variegata and Mastixia trichtoma. The other two species contain fibers with poor quality. Two species, Drypetes sp. and Koilodepas sp. have light colour and decorative appearance and with considerable strength to be used as raw material for fancy furniture and decorative panel. Ficus variegata has anatomical structure which allow it too easily be peeled in to fine decorative veneer for plywood.Key words : Lesser known wood species, wood anatomy, identification, fiber quality.

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