cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Dr. Ratih Damayant
Contact Email
ratih_turmuzi@yahoo.com
Phone
+622187914511
Journal Mail Official
ejournal_wrj@gmail.com
Editorial Address
Research Center for Biomaterials, Indonesian Institute of Sciences Jl. Raya Bogor Km 46, Cibinong, Bogor 16911, Indonesia
Location
Unknown,
Unknown
INDONESIA
Wood Research Journal : Journal of Indonesian Wood Research Society
Published by Indonesian Wood Research Society
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 157 Documents
 2   3   4   5   6 
Measurements of Inorganic Materials and Acidity in Plantation Teakwood Ganis Lukmandaru; Rudy Nur Hidayah
Wood Research Journal Vol 9, No 2 (2018): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2018.9.2.35-44

Abstract

Information concerning ash materials and acidity (pH values) within the wood of teak (Tectona grandis L.f.) plantations is especially limited. Samples taken from the stands of Perhutani plantation (Madiun and Randublatung) and community forests in Kulon Progo (Temon and Kalibawang) were analyzed to determine the ash content, metallic elements constituting the ash fraction, as well as pH values. The ranges of ash content were 0.55-3.88% whereas acid insolube ash content (silica/silicates) were 0.12-2.45%. The main four inorganic elements in wood were assayed by atomic absorption. The levels of these metals ranged from 340-4774 ppm for calcium, 17-4399 ppm for potassium, 143-1676 ppm for magnesium, and 0247 ppm for iron. Further, the pH values varied from 5.33-7.25. Differences of inorganic variables and pH values in wood were found between trees of different growth-site and radial position. The variation among the different sites was significant in the contents of silica, calcium, magnesium, potassium, and sodium while the effects of radial direction were significant in the silica and potassium levels. Ash content was positively correlated with acid insoluble ash (r = 0.77) and potassium content (r = 0.47). Furthermore, pH values were positively correlated with the magnesium content (r = 0.65) and negatively correlated with potassium (r = -0.49) and sodium contents (r = -0.55). A description of the chemical properties of the soil, however, was not sufficient in determining whether there was a relationship between the levels of metal elements or pH values in the wood and in the soil.
Water Vapor Sorption Behavior of Arabinoxylan from Corn Pericarp Tomoki Yoshida; Wahyu Dwianto; Yoichi Honda; Hiroshi Uyama; Jun-ichi Azuma
Wood Research Journal Vol 4, No 1 (2013): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2013.4.1.46-51

Abstract

The influence of the degree of arabinose substitution in arabinoxylan on its water vapor sorption behavior was investigated by comparing the application of the independent dual sorption model and the Hailwood-Horrobin (H-H) model on corn pericarp arabinoxylans with arabinose/xylose ratios of 0.35, 0.26 and 0.12. Characterization of their sigmoid shaped adsorption isotherms grouped in IUPAC Type II indicates the usefulness of the former model to demonstrate the importance of arabinose substituents in increasing the affinity of corn pericarp arabinoxylan for water molecules. The present results open the future applicability of the independent dual sorption model for characterization of the hydration behavior of other branched polymers.
Dimensional Stability and Characteristics of Modified Young Teak (Tectona grandis L.f.) Wood with PEG-1000 Tomy Listyanto; Muhammad Navis Rofii; Keisuke Ando; Nobuaki Hattori
Wood Research Journal Vol 6, No 1 (2015): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2015.6.1.14-20

Abstract

The aim of this study was to investigate the effect of wood modification with polyethylene glycol (PEG)-1000 at five concentrations to improve dimensional stability, drying, machining and finishing characteristics of young teak wood. A total of 12 samples for each treatment was prepared to measure an Anti Shrink Efficiency (ASE), as a parameter of dimensional stability and its drying characteristics. Six samples for each treatment were prepared to evaluate machining and finishing characteristics. PEG-1000 with five concentration levels of 20%, 30%, 40%, 50% and 60% were impregnated to modify the samples, except control. Afterward, all samples were kiln dried to gain 12% moisture content. ASE was determined by comparing shrinkage percentage of treated sample with those of untreated one. Warping and surface checks were measured as drying characteristics and machining test was conducted in accordance to ASTM D1666-2004. After coating with a nitrocellulose system, surface quality were evaluated by conducting cross-cut test (ASTM D3359), coin test, delamination test (SNI 01-5008.2-1999b) and glossyness test (SNI-06-6052-1999a). Result shows that dimensional stability of impregnated samples with concentration of 30~60% was successfully improved, with ASE of 52~62%. All treated samples demonstrated good drying characteristics and defect-free areas which were more than 90% under machining test. Surface evaluation by delamination test, glossyness test, and coin test indicated that all impregnated samples were well coated by a nitrocellulose system. However, only impregnated samples in concentration of 20% and 30% showed a good result in cross-cut test. Impregnation with PEG-1000 in concentration of 30% is recommended to modify young teak wood. 
Reduction in Toxicity of Tectoquinone against Reticulitermes speratus Kolbe termites Ganis Lukmandaru
Wood Research Journal Vol 11, No 2 (2020): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2020.11.2.58-64

Abstract

The cause of low toxicity against Reticulitermes speratusKolbe termite species of teakwood under natural condition was investigated. Anti-termite test was conducted to evaluate the effectivity of four major components (tectoquinone, deoxylapachol, tecomaquinone, and squalene) of ethanol-benzene extracts in the teak heartwood. Tectoquinone exhibited both strong toxicity and antifeedancy as well as it was far superior to other components. The strength reduction of tectoquinone bioactivity is assumed due to interaction with other major components. As squalene was found in considerable amounts or 1.8 to 13.1 times as high as the tectoquinone concentration in woods, termite feeding was set to the mixtures of tectoquinone and squalene in various ratios (1:1, 1:5, 1:10, and 1:20). It was revealed that squalene addition could decrease the termite mortality 15% to 44% from its initial value (tectoquinone only). On the other hand, the mixtures reduced mass loss due to termite attacks only to a small degree.
Eco-friendly Board from Oil Palm Frond and Citric Acid Firda Aulya Syamani; Sasa Sofyan Munawar
Wood Research Journal Vol 4, No 2 (2013): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2013.4.2.72-75

Abstract

The utilization of oil palm fronds as composite board raw material has developed due to the declining wood supply. Currently, citric acid is used as natural adhesive on the wood-based moldings to reduce the use formaldehyde-based resin. Citric acid has carboxylic acid functional group that can react with hydroxyl functional group from cellulose by esterification reaction. This paper explain the production of board from oil palm frond and citric acid, then elaborate their physical and mechanical properties.  Oil palm fronds were processed with ring flaker to produce particles with 1 ~ 5 cm length. The particles were dried until the moisture content reached 6%. Citric acid solution was obtained by stirring 700 g citric acid in 1000 ml water.  Citric acid solution were sprayed onto particles. The weight of citric acid were 10%, 15% and 20% based on oil palm fronds’ dry weight. Boards were produced with density target of 0.6 g/cm3 and pressure at 1N/mm2 for 10 min. The hot pressing temperatures were varied at 140ºC, 160ºC, 180ºC, and 200ºC. Physical and mechanical test were performed according to JIS A 5908-2003. The MOR, MOE, IB and SW values of boards with 15 wt% citric acid content and pressed at 200oC were 5.85 N/mm2, 1067.03  N/mm2, 0.26 N/mm2 and 88.80 N respectively. The optimum condition for board production obtained upon citric acid content and pressing temperature in a range of 15% ~ 20% and 180ºC ~ 200ºC, respectively.
Utilization of Melaleuca leucadendron Essential Oil Rini Pujiarti; Yoshito Ohtani; Titis Budi Widowati; Kasmudjo Kasmudjo
Wood Research Journal Vol 2, No 2 (2011): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2011.2.2.94-99

Abstract

The chemical composition, antioxidant, antifungal, and physiological effects of commercial Melaleuca leucadendron LINN. (Kayu Putih) oil from Sukun, East Java, Indonesia was investigated in this study. GC-MS analysis showed the majority compounds of this oil are mixtures of monoterpenes and sesquiterpenes, which 1,8-cineole (53.90%) was the most abundant compound in this oil. In vitro antioxidant assay showed this essential oil possessed antioxidant activity (IC50: 4.24mg/ml). In vitro antifungal assay showed relatively strong antifungal activity of this oil against plant pathogenic fungi of F. oxysporum (IC50: 0.44mg/ml), T. cucumeris (IC50: 0.97mg/ml) and R. oryzae (IC50: 7.71mg/ml). The investigation on the effect of the odor of M. leucadendron oil in this study also showed functional fragrance of this oil for human physiological behavior controlling.
Wear of Wood Polymer Composite for Journal Bearing Materials Sinin Hamdan; Mohd. Abdul Mun’aim; Mohd. Idrus; Md. Rezaur Rahman; Nurul Faziha Ibrahim; Md. Saiful Islam
Wood Research Journal Vol 1, No 1 (2010): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2010.1.1.22-26

Abstract

Wood is broadly used for automotive parts, construction materials, and equipment for leisure-time amusement; however, its application for journal bearings has been restricted due to its low strength and poor tribological characteristics. In this work, Falcataria moluccana or Paraserianthes moluccana, locally known as Batai wood, which have low density and high porosity were impregnated with motor oil, (SL/CF 15W-50), hexamethylene diisocyanate, and diphenylmethane-4, 4’-diisocyanate to improve their compressive strength and tribological characteristics. A vacuum-pressure method was used to impregnate the wood specimens. From scanning electron microscopy (SEM) analysis, wear test, and compression test results, it was found that the hexamethylene diisocyanate was a promising material to improve the physical properties of wood for journal bearings.
Machining Operations on Messassa Wood Narciso Fernando Bila; Rosilani Trianoski; Márcio P. Da Rocha; José Reinaldo Moreira da Silva; Setsuo Iwakiri; Andrade F. Egas; Alberto F. Mussana
Wood Research Journal Vol 11, No 1 (2020): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2020.11.1.12-19

Abstract

This study aimed to evaluate the effect of machining operations on the surface quality of the messassa wood (Brachystegia spiciformis and Julbernadia globiflora) for use in the furniture industry. The wood cames from Mozambican Miombo Woodland. The following machining operations were performed: planing, shaping, milling, tearing and boring based on technical standard. The wood had a surface quality approval rating above 70% in all tested machining operations. A perfect surface quality was obtained with a feed speed of 6 m.min-1 in planing. Brachystegia spiciformis had easy workability and extremely well performance compared to Julbernadia globiflora. Nevertheless, both wood species have great potential for use in higher value-added products such as furniture and frame production.
Chemical Compositions, Antioxidant and Antifungal Activities of Melaleuca leucadendron Linn. Leaf Oils from Indonesia Rini Pujiarti; Yoshito Ohtani; Hideaki Ichiura
Wood Research Journal Vol 3, No 1 (2012): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2012.3.1.23-29

Abstract

Melaleuca leucadendron Linn. Oil, also known as Kayu Putih oil, is one of the most important non-timber forest products in Indonesia. This oil has diverse bioactivity, such as insecticidal, antifungal, antibacterial, and antiviral. This study elucidated the chemical compositions and biological activities of M. leucadendron leaf oils from Java, Indonesia in order to evaluate their potency and improve their utilization. Leaf samples of M. leucadendron in this study were collected from plantation forest in Gunung Kidul-Yogyakarta (L1), Gundih-Central Java (L2) and Sukun-East Java (L3), Indonesia in different plant ages of 5 (A1), 10 (A2) and 15 (A3) years-old. Oil samples were distillated by water-steam distillation. Identification of chemical composition of these essential oils was conducted by GC-MS analysis. The in vitro antioxidant activity was examined by 1,1- diphenyl-2-picrylhydrazyl (DPPH) method and antifungal activity was examined using a method by Wang et al. (2005) with slight modification against pathogenic fungi of Fusarium oxysporum, Thanatephorus cucumeris and Rhizopus oryzae. GC-MS investigations of M. leucadendron leaf oils showed 26 compounds have been identified. The result showed 1,8-cineole (44.76% to 60.19%) was the major compound in these oil, followed by α-terpineol (5.93% to 12.45%), D(+)-limonene (4.45% to 8.85%), and β-caryophyllene (3.78% to 7.64%), respectively. The in vitro DPPH assay showed anti-oxidative (IC50: 7.21 to 9.46 mg/ml) properties of M. leucadendron leaf oils. This essential oils also revealed inhibitory effect against F. oxysporum (IC50: 0.01 mg/ml to 0.11 mg/ml), T. cucumeris (IC50: 0.52 mg/ml to 4.20 mg/ml) and R. oryzae    (IC50:1.35 mg/ml to 7.61 mg/ml). The antifungal activity showed M. leucadendron leaf oils were effective against fungi of F. oxysporum and T. cucumeris; but it showed less antifungal activity against R. oryzae. This study indicated that the M. leucadendron leaf oils can be used as antioxidant and sustainable eco-friendly bio fungicides.
Molecular Identification of Decay Fungi in Xylem of Yellow Meranti (Shorea gibbosa) Canker Erwin Erwin; Shuhei Takemoto; Yuji Imamura
Wood Research Journal Vol 1, No 2 (2010): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2010.1.2.78-82

Abstract

By molecular technique, identification of decay fungi isolated from decayed xylem of the tree canker of yellow meranti (Shorea gibbosa) have been carried out.  In this molecular identification, the ITS (Internal Transcribed Spacers) region of rDNA of fungal isolates were amplified and sequenced. The DNA sequence for each fungus was aligned with that of known species in the ITS region of rDNA database for fungi. By phylogenetic analysis based on the sequences of the ITS region of rDNA, a basidiomycete fungi isolated from decayed xylem of yellow meranti was identified as Phlebia  brevispora. The presence of ascomycete fungi on the decayed xylem samples was also detected and identified as Aspergillus nomius, Phlogicylindrium sp., Hypocrea rufa, Hypocrea lixii, Talaromyces sp., and Trichoderma virens.

Page 4 of 16 | Total Record : 157

 2   3   4   5   6 

Filter by Year

2010 2024


Reset
Filter By Issues
All Issue Vol 15, No 2 (2024): WOOD RESEARCH JOURNAL Vol 15, No 1 (2024): WOOD RESEARCH JOURNAL Vol 14, No 1 (2023): Wood Research Journal Vol 13, No 2 (2022): Wood Research Journal Vol 13, No 1 (2022): Wood Research Journal Vol 12, No 2 (2021): Wood Research Journal Vol 12, No 1 (2021): Wood Research Journal Vol 11, No 2 (2020): Wood Research Journal Vol 11, No 1 (2020): Wood Research Journal Vol 10, No 2 (2019): Wood Research Journal Vol 10, No 1 (2019): Wood Research Journal Vol 9, No 2 (2018): Wood Research Journal Vol 9, No 1 (2018): Wood Research Journal Vol 7, No 1 (2016): Wood Research Journal Vol 6, No 2 (2015): Wood Research Journal Vol 6, No 1 (2015): Wood Research Journal Vol 5, No 2 (2014): Wood Research Journal Vol 5, No 1 (2014): Wood Research Journal Vol 4, No 2 (2013): Wood Research Journal Vol 4, No 1 (2013): Wood Research Journal Vol 3, No 2 (2012): Wood Research Journal Vol 3, No 1 (2012): Wood Research Journal Vol 2, No 2 (2011): Wood Research Journal Vol 2, No 1 (2011): Wood Research Journal Vol 1, No 2 (2010): Wood Research Journal Vol 1, No 1 (2010): Wood Research Journal More Issue