Jurnal Penelitian Hasil Hutan

209-221

Authors: Han Roliad.i

Small-scle paper board industries in Indonesia that use sludge are mrrently faced with difftmlry in promrement continuiry of additional fibrous raw materials (partimlaly pulp and wastepaper) as the sludge mixfllre. On the other hand, empty oil-palmfruit bunches (EOPFB) as wastefrom palm-oilprocessing are abundantly potential offering ligno• cellulosic fiber sfllfft, which have not been utilized effectivefy hence sugg,esting their potential use in those paperboard industries. In relevance, EOPFB after beingchip pedwas experimentally cooked into pulp farpaper board, using semi-chemical hot sodaprocess in the semi-pilot scaledosed (pressurized)di gesterde signed qy the Centerfar &search and Developmenton Forestry Enfjneeri11g and Forest Product Processing, Bogor. Theprocess afforded the EOPFB pulpyield at 60. 17%.Further,paperboard sheet wasfamled in a lfllall-scalepaperboard industry.frotn the mixture of 50% EOPFB pulp and 50% pulp-mill sludge; and from. 100% EOPFB,each incorporarting the adjditives (i.e.5%clayfiller, 2% al11m rentention-agent,4% tapioca binder, and2% rosin-soap size). Pqysical and strength properties of thepaperboard.fron1 100%EOPFB and its mixture withpulp-mill sludge(50 : 50%, mpective!Y) were better than thoseprodltced qy the small-scale industry traditionally using the mixture of 50% sludgeand 50% wastepaper (but, without additives),and also satisfied the commercial-paperboard criteria. In addition, the surface of paperboard .from EOPFB pulp mixed with sludge (50 : 50% proportion)provided interesting visual impression rendering it mitablefar fancy/ art purposes (invitationcard, book cover, decorativepaperboard, attractive surfacepatterns, etc).This suggests the prospective use of ma11efactuti11gfancpy aperboard.from the mixture of EOPFB pulp mixed with pulp-mill sl1tdge, as alternative/ substutute raw material of the paperboard industry that uses the mixture of wastepaper and paper-mill slusge.

241-254

Authors: Ahmad Junaedi & Asep Hidayat

Testing of nilam seedlingorigin had been carried out al West Pasaman in We.rt Sumatera as a part of increasing plant and Patchoolioilproductivity. Three sourcesof nilam seedlingi.e Tapak Tuan,Dairi and Sidikalangwere tested using randomized completely block designin this experiment. The study showed that nilamfrom Dairi at 11 month old produced 19,4 ton/ ha with oil yield of 208 kg/ha and 44,5% of pathhouli cohol content.

263-277

Authors: Mohammad Muslich & Nurwati Hadjib

Jati plus Perhutani (]PP) reveals one of thefast-growing teak (fectonagrandis) varieties which have been developed through the tissue culture to enhance supply capability of teak woodfrom teakplantation. Information about fastgrowing teak wood (including JPP)isstill limited. As the relevance, this attempt tried to experimentally improve the inferioriry of JPP wood at 9years age. &suits showed that the JPP in size was categorized as small diameterwood (KBK, A.I), and in dt1;tibiiiry msceptiblelo dry-wood termites(Cryptoterme scynocephalus)and subterranean termite (Coptoterrnes curvignathus).The JPP after being treated with particular preservatives, improved its durabiliryclass remarkably. To impart added value of JPP wood and lo utilize it as efftciently as possible the jPP after being treated with borax preservative or tlntreated was shaped into lamina with and with out finger-joint connection, and then assembled to gltlelaminated beam (glulam)t1singthe mixture ofphenol-resorcinol formal deflyde and urea formaldefly deadhesive. It turned outhat the strength and mechanica lproperties of thegitllam was not afftcted qy thefinger-jointedand qy borax-treating, exceptcompressive strength parallel to thegrain (in thelengthwise direction ofgltilam) and stiffness (MOE).