Journal of the Korean Wood Science and Technology

About Journal of the Korean Wood Science and Technology

The Journal of the Korean Wood Science and Technology (JKWST) launched in 1973 as an official publication of the Korean Society of Wood Science and Technology has been served as a core of knowledges on wood science and technology. The Journal acts as a medium for the exchange of research in the area of science and technology related to wood, and publishes results on the biology, chemistry, physics and technology of wood and wood-based products. Research results about applied sciences of wood-based materials are also welcome. The Journal is published bimonthly, and printing six issues per year. Supplemental or special issues are published occasionally.
Original Article

May 25, 2023

Anti-Termite Activity of Azadirachta excelsa Seed Kernel and Its Isolated Compound against Coptotermes curvignathus

Morina ADFA, Khafit WIRADIMAFAN, Ricky Febri PRATAMA, Angga SANJAYA, Deni Agus TRIAWAN, Salprima YUDHA S., Masayuki NINOMIYA, Mohamad RAFI, Mamoru KOKETSU

J. Korean Wood Sci. Technol. 2023;51(3):157-172.
https://doi.org/10.5658/WOOD.2023.51.3.157

Azadirachta excelsa, is a plant belonging to the same genus as Indian neem (Azadirachta indica), and its use as a pesticide is reported by few studies. Despite being a different species, it is expected to have the same biopesticide potential as A. indica. Therefore, this study aims to investigate the anti-termite activity of n-hexane and methanol extracts of A. excelsa seed kernel at various concentrations against Coptotermes curvignathus. The methanol extract demonstrated greater termicidal activity than n-hexane at doses test of 2%, 4%, and 8...
Original Article

May 25, 2023

Surface Discoloration of Ultraviolet (UV)-Irradiated Phyllostachys bambusoides Bamboo

Hyoung-Woo LEE, Eun-Ju LEE, Yoon-Jung SHIN, Ha-Yeong JO, Dae-Yeon SONG

J. Korean Wood Sci. Technol. 2023;51(3):173-182.
https://doi.org/10.5658/WOOD.2023.51.3.173

Color is an attribute of visual perception and can be an important factor that affects the preference of customers toward bamboo and wood products. Solar radiation can discolor bamboo surfaces and initiate cracking. The purpose of this study is to investigate the effects of an ultraviolet (UV)-protective coating on the photodiscoloration of untreated and heat-treated Phyllostachys bambusoides bamboo surfaces. Artificial UVA radiators are set at a UVA irradiance of 2,000 W/m2 to accelerate the aging of the outer surfaces of hot-air-dried and hea...
Original Article

May 25, 2023

Stain Fungi and Discoloration Control on Rubberwood (Hevea brasiliensis Muell. Arg.) by Vacuum-Pressure Treatment with Catechin from Gambir (Uncaria gambir Roxb.)

Dodi NANDIKA, Elis Nina HERLIYANA, Arinana ARINANA, Yusuf Sudo HADI, Mohamad Miftah RAHMAN

J. Korean Wood Sci. Technol. 2023;51(3):183-196.
https://doi.org/10.5658/WOOD.2023.51.3.183

Recently, the morphological and molecular features of five stain fungi infecting rubberwood (Hevea brasiliensis), namely Paecilomyces maximus, Paecilomyces formosus, Penicillium crustosum, Paecilomyces lecythidis and Aspergillus chevalieri, have been studied. Prior to this study, the authors revealed that catechin from gambir (Uncaria gambir) could inhibit the growth of the white-rot fungus Schizophyllum commune, and it was important to determine the bioactivity of the aforementioned agent against A. chevalieri. The efficacy of the biocidal age...
Original Article

May 25, 2023

Bending Properties of Parallel Chord Truss with Steel-Web Members

Hyung Woo LEE, Sang Sik JANG

J. Korean Wood Sci. Technol. 2023;51(3):197-206.
https://doi.org/10.5658/WOOD.2023.51.3.197

A truss is a structure in which the members are connected and arranged such that they are primarily subjected to axial loading. A truss has the advantage that it can be used for a longer span because the structure distributes the applied force to its members well, and the load is transmitted only in the axial direction of the members. Trusses manufactured using timber have more advantages than those made of other materials. In this study, the properties of parallel chord trusses composed of timber chord and steel-web members were evaluated. We ...
Original Article

May 25, 2023

Initial Ignition Time and Calorific Value Enhancement of Briquette with Added Pine Resin

Gustan PARI, Lisna EFIYANTI, Saptadi DARMAWAN, Nur Adi SAPUTRA, Djeni HENDRA, Joseph ADAM, Alfred INKRIWANG, Rachman EFFENDI

J. Korean Wood Sci. Technol. 2023;51(3):207-221.
https://doi.org/10.5658/WOOD.2023.51.3.207

The increasing demand for clean energy requires considerable effort to find alternative energy sources, such as briquettes. This research aims to develop a charcoal briquette with added pine resin (API) that has excellent combustion speed and distinctive aroma. Briquettes are composed of charcoal, pine resin (concentration: 0%–30%), and starch (up to 7%). They are produced in several stages, including coconut shell pyrolysis in conventional combustion, to obtain charcoal for the briquette precursor. Briquette compaction is conducted by mixing...
Original Article

May 25, 2023

Evaluation of Genetic Parameters of Growth Characteristics and Basic Density of Eucalyptus pellita Clones Planted at Two Different Sites in East Kalimantan, Indonesia

Alfia Dewi FADWATI, Fanny HIDAYATI, Mohammad NA’IEM

J. Korean Wood Sci. Technol. 2023;51(3):222-237.
https://doi.org/10.5658/WOOD.2023.51.3.222

Eucalyptus pellita is one of the fast-growing tree species and has become predominant in Indonesian forest plantations. Meanwhile, tree breeding programs with clone development are the best way to provide greater genetic advantages. A better understanding of genetic control on growth and basic density in E. pellita is important for increasing wood productivity and quality. In this study, growth characteristics (tree height, diameter, and volume), basic density and its genetic parameters (heritability, genetic gain and genetic correlation) were ...

CURRENT ISSUE: May 2023, Vol. 51, No. 3

Original Article Anti-Termite Activity of Azadirachta excelsa Seed Kernel and Its Isolated Compound against Coptotermes curvignathus Morina ADFA, Khafit WIRADIMAFAN, Ricky Febri PRATAMA, Angga SANJAYA, Deni Agus TRIAWAN, Salprima YUDHA S., Masayuki NINOMIYA, Mohamad RAFI, Mamoru KOKETSU J. Korean Wood Sci. Technol. 2023;51(3):157-172. https://doi.org/10.5658/WOOD.2023.51.3.157 HTML PDF PubReader	Original Article Surface Discoloration of Ultraviolet (UV)-Irradiated Phyllostachys bambusoides Bamboo Hyoung-Woo LEE, Eun-Ju LEE, Yoon-Jung SHIN, Ha-Yeong JO, Dae-Yeon SONG J. Korean Wood Sci. Technol. 2023;51(3):173-182. https://doi.org/10.5658/WOOD.2023.51.3.173 HTML PDF PubReader
Original Article Stain Fungi and Discoloration Control on Rubberwood (Hevea brasiliensis Muell. Arg.) by Vacuum-Pressure Treatment with Catechin from Gambir (Uncaria gambir Roxb.) Dodi NANDIKA, Elis Nina HERLIYANA, Arinana ARINANA, Yusuf Sudo HADI, Mohamad Miftah RAHMAN J. Korean Wood Sci. Technol. 2023;51(3):183-196. https://doi.org/10.5658/WOOD.2023.51.3.183 HTML PDF PubReader	Original Article Bending Properties of Parallel Chord Truss with Steel-Web Members Hyung Woo LEE, Sang Sik JANG J. Korean Wood Sci. Technol. 2023;51(3):197-206. https://doi.org/10.5658/WOOD.2023.51.3.197 HTML PDF PubReader
Original Article Initial Ignition Time and Calorific Value Enhancement of Briquette with Added Pine Resin Gustan PARI, Lisna EFIYANTI, Saptadi DARMAWAN, Nur Adi SAPUTRA, Djeni HENDRA, Joseph ADAM, Alfred INKRIWANG, Rachman EFFENDI J. Korean Wood Sci. Technol. 2023;51(3):207-221. https://doi.org/10.5658/WOOD.2023.51.3.207 HTML PDF PubReader	Original Article Evaluation of Genetic Parameters of Growth Characteristics and Basic Density of Eucalyptus pellita Clones Planted at Two Different Sites in East Kalimantan, Indonesia Alfia Dewi FADWATI, Fanny HIDAYATI, Mohammad NA’IEM J. Korean Wood Sci. Technol. 2023;51(3):222-237. https://doi.org/10.5658/WOOD.2023.51.3.222 HTML PDF PubReader

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