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All Journal Jurnal Penelitian Hasil Hutan
Ratri Yuli Lestari
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology

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Journal : Jurnal Penelitian Hasil Hutan

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PENGARUH KADAR AIR TERHADAP KUALITAS PELET KAYU DARI SERBUK GERGAJIAN KAYU JABON DAN KETAPANG Ratri Yuli Lestari; I Dewa Gede Putra Prabawa; Budi Tri Cahyana
Jurnal Penelitian Hasil Hutan Vol. 37 No. 1 (2019): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2019.37.1.1-12

Abstract

In the last few years, wood pellet demand has increased globally for residential purposes. In term of standard quality, wood pellet for residential purposes are tighter than industrial purposes. The wood pellet quality parameters are moisture changes in biomass, impacts on bulk density, and mechanical durability. This paper analyzes the effect of biomass moisture content (MC) into the quality of wood pellet made from jabon and ketapang sawdust to meet quality standard of ISO 17225-2. The pellet was grouped into three, based on MCs, i.e. <10% (air-dry), 15% and 20%. The sawdust was then pressed at 464.52 kg/cm2, 150°C for 10 minutes. Analysis of variance (ANOVA) was conducted by Tukey and Homogenity tests on results. The optimum wood pellet quality was assessed using scoring requirement for residential use with less smoke and combustion residue.
PENGARUH EKSTRAK KAYU ULIN (Eusideroxylon zwageri) TERHADAP SERANGAN RAYAP KAYU KERING (Cryptotermes cynocephalus Light): PENELITIAN PENDAHULUAN Mohammad Listianto Raharjo; Desi Mustika Amaliyah; Ratri Yuli Lestari; Budi Tri Cahyana
Jurnal Penelitian Hasil Hutan Vol. 38 No. 1 (2020): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2020.38.1.21-26

Abstract

Dry wood termites attack is one of the problems that cause huge losses in timber construction. One way to solve thisproblem is by preserving wood, with synthetic chemicals or natural ingredients. The purpose of this preliminary researchwas to determine the effect of ironwood powder extract as a natural wood preservative. Preservation methods conductedwere cold immersion at normal temperature (± 25°C) and hot immersion at 80°C. Variations in the concentrationare 5%, 10%, 15%, and 20%. Variation of immersion time are 1, 2, and 3 days for the cold immersion and 0.5; 1;2; 3 hours for the hot immersion. Results show that mortality data and the degree of attack of dry wood termites. Theresults showed that the mortality of the dry wood termites increased 4−6%. However, no difference was found on thedegree of attacks between preserved and control wood.
Co-Authors Budi Tri Cahyana Desi Mustika Amaliyah I Dewa Gede Putra Prabawa Mohammad Listianto Raharjo