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All Journal Publika Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Panorama Hukum Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Abdimas Mahakam Masyarakat Berdaya dan Inovasi Walisongo Law Review (Walrev) Jurnal Guru Dikmen & Diksus Ethical Lingua: Journal of Language Teaching and Literature Borneo Educational Journal (Borju) Healthy Journal MLJ Merdeka Law Journal Lentera Perawat PEKERTI Journal Pendidikan Agama Islam & Budi Pekerti NeoRespublica : Jurnal Ilmu Pemerintahan GEMBIRA (Pengabdian Kepada Masyarakat) Abuya: Jurnal Pendidikan dasar Tadulako Science and Technology Journal Jurnal of Islamic Economic Studies
Ariyanti
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Journal : Jurnal Penelitian Pendidikan IPA (JPPIPA)

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Phytochemical Analysis, Physical Properties, and Chemical Compound Content White Teak Wood (Gmelina Arborea Roxb) Ariyanti; Mutmainnah; Asniati
Jurnal Penelitian Pendidikan IPA Vol 11 No 2 (2025): February
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i2.9907

Abstract

Indonesia is a country with a tropical climate. Rainfall in Indonesia is quite high and greatly affects the growth of mushrooms (fungi). The use of wood cannot be separated from the manufacture of traditional houses. These traditional houses made of wood are very susceptible to fungal attacks. Wood or wood rot fungi are fungi that live attached to decaying trees, but some types of wood fungi grow on living tree trunks and on dead trees. Wood rot fungi are heterotrophic, or do not produce their own food, This study aims to determine the resistance of white teak wood (Gmelina arborea Roxb) against wood-decay fungi. The research method used was a completely randomized factorial design consisting of two factors: factor I (wood) and factor II (fungi). The test samples used for the combination of the two factors measured 5x 2.50x1.50 cm, with a total of 9 test samples placed in culture jars separately. All samples from the base, middle, and tip tests were placed into a jar containing PSA media, and the inoculated mushroom culture was added to the jar. The observed parameters used an analysis of variance to determine whether the treatment had a significant effect on the decrease in teak wood weight. The Least Significant Difference (LSD) test was carried out to determine whether there were significant differences between treatments or not.
Physical and Mechanical Properties of White Teak Wood (Gmelina Arborea) from Ampana, Poso, Central Sulawesi Based on the Position of the Wood in the Trunk Erniwati; Ariyanti; Mutmainnah; Rachman, Imran
Jurnal Penelitian Pendidikan IPA Vol 11 No 3 (2025): March
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i3.10253

Abstract

The basic properties of this wood are also greatly influenced by factors within the wood and external factors such as where the wood grows. This research was conducted from June to September 2024 at the Soil Science Laboratory, Faculty of Agriculture, and the Mechanical Engineering Laboratory, Faculty of Engineering, Tadulako University to determine the physical and mechanical properties of white teak wood from Ampana, Poso, Central Sulawesi. The design method used in this study is RAL Factorial with two factors, namely: Factor A variation of the axial direction (base, middle, tip) and, Factor B variation of the radial direction (near the heart, middle, near the skin), so that there are 9 treatments and each treatment is repeated 5 times. The results of the study showed that both physical and mechanical properties were influenced by the position of the wood in the trunk where the position of the wood in the trunk affects the physical and mechanical properties of the wood studied. Based on the MOE value, the white teak wood studied is included in the strength class V. Based on the MOR value and compressive strength parallel to the grain, the wood studied is included in the strength class III which can be used as raw material for furniture and light construction.
Co-Authors Abdul Hapid Adela Puspita Sari Agnes Widyaningrum Alfina Sundari Arbain Asniati Dini Justian Erniwati Estella Fransisca Workala Ferawaty Hermawan Fitriyah, Nailiyatul Gita Arisara Imran Rachman Indah Anisah Safitri KM Yusfar La Ode Muhammad Sety Made Dadra Ramadhan Masnunah, Masnunah Masyhuri Maya Defianty Melati Kurnia Melinda Muhammad Rezky Muthmainah Mutmainnah Naldiyanto Madao Nur Salsa Fadillah Nurlinda Tri Wahyuningsih Nurmala, Leni Dwi Rahayu, Dewi Ayu Rahma Putri Indriani Roy Anugraha Saiful Anwar Sanusi, M Fahmi Siti Yulia Rahmawati Sri Agustina Suryani Suryani Tiara Fatrin Wiwik Kusumawati Yona Sari Yusuf Rohdiansyah Yusuf Sabilu, Yusuf