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Dr. Ratih Damayanti
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ratih_turmuzi@yahoo.com
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+622187914511
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ejournal_wrj@gmail.com
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Research Center for Biomaterials,Indonesian Institute of Sciences Jl. Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia
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INDONESIA
Wood Research Journal : Journal of Indonesian Wood Research Society
Published by Masyarakat Peneliti Kayu Indonesia
ISSN : 20873840     EISSN : 27749320     DOI : 10.51850/wrj
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Wood Research Journal is the official journal of the Indonesian Wood Research Society. This journal is an international medium in exchanging, sharing and discussing the science and technology of wood. The journal publishes original manuscripts of basic and applied research of wood science and technology related to Anatomy, Properties, Quality Enhancement, Machining, Engineering and Constructions, Panel and Composites, Entomology and Preservation, Chemistry, Non Wood Forest Products, Pulp and Papers, Biomass Energy, and Biotechnology. Besides that, this journal also publishes review manuscripts which topics are decided by the Editors.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 5 Documents
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Search results for , issue "Vol 12, No 1 (2021): Wood Research Journal" : 5 Documents clear
The Role of Structure Canopy of Terminalia Catappa Linn. on Light Penetration and Decreasing Ambient Temperature as Climate Change Mitigation Marjenah Marjenah
Wood Research Journal Vol 12, No 1 (2021): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2021.12.1.35-40

Abstract

Terminalia catappa  (Tropical almond) is a tree that usually grows on the seashore. this tree has a shady canopy. This tree is usually planted as an ornamental plant or a shade plant on the side of the road. The presence of the Terminalia catappa tree can provide coolness if the tree is planted in the garden or in the yard or along the roadside. This research was carried out in areas around East Kalimantan, at the sampling location (Balikpapan City, Samarinda City, Tenggarong Ciyt), 25 trees Tropical almond  were set in each city which were used as the test samples trees. Data taken includes a) data on physical environmental characteristics including light intensity, ambient temperature and humidity under the canopy performed and out of canopy on each tree sample, and b) data on morphological characteristics (location, height, diameter at breast height, and shape / width of crown ). The relationship between the volume, light penetration and decreased ambient of the tropical almond tree canopy on light penetration under and in the out area of the canopy of the tropical almond tree indicated that there was an effect of the volume of the tropical almond tree canopy on light penetration and there was an effect of light penetration of the tropical almond canopy on a decrease in ambient temperature. The relationship between light penetration and increase of relative humidity indicated that there was an effect of light penetration of the tropical almond canopy on a increase in relative humidity.
A Spectroscopic and Nondestructive Analysis Methods for Investigation of Inorganic Pigments in A Cultural Heritage in North of Iran Faramarz Rostami-Charati; Gholamreza Rahmani; Roya Bahadori; Farah Sadat Madani
Wood Research Journal Vol 12, No 1 (2021): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2021.12.1.1-9

Abstract

Many of the historical objects that form our cultural heritage are made of wood. Wooden artefacts, wood painted panels and historic furniture represent a significant part of our cultural heritage. Their preservation over time is a challenging task, and insect infestation still represents a primary cause of loss of cultural heritage artifacts. For this reason in this research, wood pigments that are important in the conservation of historical wooden objects are described. The characterization of very stable pigments from a cultural heritage building named by SAGHATALAR which is located in Mazandaran province, a suburb around of Fridonkenar city in the north of Iran near Caspian Sea (Cochakbishehmahaleh village) was investigated. The result were showed no organic materials was find in the four colors (Blue, Red, Yellow and Green) as samples of this building were detected and taken samples from them for characterization and analysis. The spectroscopic techniques that have been used are Fourier transform infrared spectroscopy (FT-IR), X‐ray fluorescence spectroscopy (XRF), X‐ray emission spectroscopy (XRD), Uv-vis spectroscopy, fluorescence spectroscopy, Raman spectroscopy and Mossbauer spectroscopy.
Improving The Physical Properties of Young Teak Wood Through Phenol Formaldehyde Compregnation Agung Dwi Saputra; Joko Sulistyo
Wood Research Journal Vol 12, No 1 (2021): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2021.12.1.28-34

Abstract

Young teak wood exhibits inferior properties due to a high proportion of juvenile wood and sapwood. The modification through compregnation of phenol formaldehyde is required to improve wood qualities. Therefore, this study aimed to observe the possibility of improving the physical properties of young teak wood (15 years) using phenol formaldehyde compregnation at various concentrations (5%, 10%, 15%) and pressing times (15, 30, 60 minutes). The results showed that phenol formaldehyde concentration produced retention with a maximum value of 31.19 kg/m3. Based on wood without treatment (controls), the compregnation significantly increased the redness (a*) level by 45.57% and the specific gravity by 7.93%. The decreasing levels after treatment were observed in the brightness (L*) (by 36.56%), the yellowness (b*) (by 38.40%), and air-dried moisture contents by (by 5.44%). Furthermore, the reduction in hygroscopicity was observed in an equilibrium moisture content level in various relative humidity, as well as in increasing the stability dimension, though in a small magnitude.
Extractive Content and Colour Properties of 11-Year-Old Superior Teak Wood Ganis Lukmandaru; Alfian Nur Falaah; Tomy Listyanto; Dian Rodiana
Wood Research Journal Vol 12, No 1 (2021): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2021.12.1.10-17

Abstract

There is a lack of understanding about the properties of fast-growing teak trees harvested in young stage. Superior teak woods (11 years, 5 trees) grown in Pemalang FMU were assessed in vertical and radial positions for its extractive contents and colour properties. Extractions were conducted using a sequence of toluene, ethanol, and hot water. The color evaluation was performed using CIEL*a*b*’s chromaticity system. Toluene-, ethanol-, hot-water-, and total extractive contents ranged between 1.16~5.00%; 0.29~1,04%, and 0.98~2.35%, and 4.03~7.31%, respectively. For color properties, the brightness (L*), redness (a*), and yellowness (b*) indices ranged from 49.50~57.42, 6.08~10.81, and 20.47~25.74,  espectively.Toluene- and total extractive contents were greater in heartwood than in sapwood, while the reverse occurred for the hot-water extractive content. Toluene- and total extractive contents were higher in outer heartwood than in inner heartwood. With regard to colour properties, L* and a* values  were significantly differed between sapwood and heartwood. Vertical stem analysis of samples obtained at bottom, center, and top showed the toluene extractive content, total extractive content, and a* levels of center part of the tree were found to be lower than other parts. The L* were negatively correlated with extractive contents, with the highest correlation degree (-0.83**) being observed in the total extractive content in the heartwood. It is also noticed that superior teak wood  wood was less darker and extractive contents than the heartwood control of a 72-year-old tree. Therefore, the properties measured in the present work might be related with  natural durability of the woods.
Catalytic Process in Producing Green Aromatics through Fast Pyrolysis of Wood of Five Tropical Fast Growing Trees Species Joko Sulistyo; Toshimitsu Hata; Ganis Lukmandaru; Yunida Syafriani; Sensho Honma
Wood Research Journal Vol 12, No 1 (2021): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2021.12.1.18-27

Abstract

The generation of liquid fuels and chemicals is potential through a catalytic fast pyrolysis (CFP) which is a rapid, inexpensive, and promising method utilizing tropical wood biomass as starting material. There is a little known in the potential of wood biomass from tropical fast-growing trees as starting materials for the production of liquid fuel and chemicals. In this study the formation of aromatics by pyrolytic-gas chromatography/mass spectroscopy (Py-GC/MS) is evaluated on the effect of wood species with different characteristics and its cellulose component to the formation of aromatics. Fast pyrolysis of eucalyptus wood characterized with low content of ash and high percentages of hollocellulose and α-cellulose produced much high relative peaks of levoglucosan and small relative peaks of lignin derived products. Meanwhile high content of vollatile matter and high crystallinity of cellulose attributed balsa and jabon woods as feedstock for fast pyrolysis. The catalytic process in fast pyrolysis of eucalyptus decomposed the most of oxygenated compound such as levoglucosan and furfural into aromatics in the presence of ZSM-5. Coke formation on the surface catalyst might lead partly of decomposition of levoglucosan and furfural to form aromatics in the catalytic fast pyrolysis of balsa wood. Cellulose component determined on the formation of benzene, toluene, styrene, p-xylene, indane, indene, and naphthalene in catalytic fast pyrolysis of wood.

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