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Pengaruh Perlakuan Ekstraksi Terhadap Sifat Fisika dan Mekanika Papan Semen Berbahan Baku Tumbuhan Bamban (Donax canniformis) : The Effect of Extraction Treatment on the Physical and Mechanical Properties of Cement Boards Made from Bamban (Donax canniformis) Luhan, Gimson; Santoso, Mahdi; Putra, Apri Wijaya; Supriyati, Wahyu; Christy, Eva Oktoberyani; Silvianingsih, Yosefin Ari; Yanciluk, Yanciluk
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.11961

Abstract

Wood or lignocellulosic materials with high extractives are not recommended for making cement boards. Extraction of raw materials before the cement board manufacturing is a treatment carried out to address this issue. The aim of this research is to determine the influence of cold and hot water extraction treatment on Bamban particles on the quality of the cement boards. This research was conducted by immersion bamban particles on hot water (boiling at 100°C) for 3 hours. The mixture ratio between cement and bamban particles was 1.5:1 (w/w), and it was compressed for 1 hour at a pressure of 30 bar, followed by manual pressure (clamping) for 24 hours. The physical and mechanical properties of cement boards was conducted according to SNI 03-2104-1991 for wood-wool cement boards. The results of the study show that hot water extraction treatment has a very significant effect on the quality of the resulting cement boards.
Sifat Fisika Mekanika Papan Semen dari Limbah Penggergajian Berdasarkan Komposisi Jenis Serbuk Kayu Meranti Merah (Shorea Leprosula Miq) dan Terentang (Campnosperma Spp) : Mechanical physical Properties of Cement Board made from Sawmill Waste Based on Saw Dust Composition of Red Meranti (Shorea leprosula Miq) And Terentang (Campnosperma Spp Sitorus, Sitorus; Koroh, Desy Natalia; Joni, Herwin; Sukarna, Raden Mas; Silvianingsih, Yosefin Ari
HUTAN TROPIKA Vol 18 No 2 (2023): Volume 18 Nomor 2 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i2.12008

Abstract

This research aims to determine 1) the effect of the composition of red meranti and terentang sawmill waste to physical and mechanical properties of wood dust cement board according to SNI 03-2105-2006 and 2) determine the physical and mechanical properties of red meranti and terentang sawmill waste particle cement board the best based on SNI standards. The research method used a single factor Completely Randomized Design with five levels, namely A1(100% red meranti), A2(100% terentang), A3(50% red meranti: 50% terentang), A4(75% red meranti: 25% terentang) and A5 (25% red meranti: 75% terentang) using sawdust: cement ratio of 1:2, each treatment was repeated three times so that the number of sawdust cement boards made were fifteen pieces of sawdust cement board. The test parameters are physical properties (density, moisture content and thickness swelling) and mechanical properties (MoE, MoR and screw holding). Next, test the data for normality using Kolmogrov-Smirnov (SPSS 24). The results of research on the treatment of the composition of sawdust from red meranti and terentang using a cement sawdust ratio of 1:2 not significant effect on the physical and mechanical properties of sawdust cement board, because the specific gravity of red meranti wood and terentang did not significant different. The physical properties of sawdust cement board meet SNI 03-2105-2006, the best treatment was A1 (100% red meranti wood) for water content (9.09%) and thickness swelling (1.53%) while for density the best is in A4 powder composition (75 %: 25%, red meranti: terentang). The overall average value of mechanical properties does not meet SNI 03-2105-2006.
Kualitas Papan Semen dari Partikel Bamban (Donax canniformis): Quality of Cement Board of Bamban (Donax canniformis) Particles Santoso, Mahdi; Luhan, Gimson; Putra, Apri Wijaya; Christy, Eva Oktoberyani; Silvianingsih, Yosefin Ari; Yanciluk, Yanciluk; Pidjath, Chartina
HUTAN TROPIKA Vol 19 No 1 (2024): Volume 19 Nomor 1 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i1.14252

Abstract

The aim of this research is to determine the influence of mixture rasio of cement/bamban particles on the quality of the cement boards. This research was conducted by four mixture rasio cement/bamban particles (w/w) that was 1.25/1, 1.5/1, 1.75/1 and 2/1. Bamban particles was immersion on hot water (boiling at 100°C) for 3 hours to remove the extractives compounds. The mixture ratio between cement and bamban particles was compressed for 1 hour at a pressure of 30 bar, followed by manual pressure (clamping) for 24 hours. The physical and mechanical properties of cement boards was conducted according to SNI 03-2104-1991 for wood-wool cement boards. The results of the study show that mixture rasio cement/bamban particles has a very significant effect on the quality of the resulting cement boards.
Kearifan Lokal Masyarakat Dayak Ngaju Dari Sistem Pertanian Tradisional Untuk Pendapatan Keluarga di Buntut Bali Kabupaten Katingan Kalimantan Tengah: Local Wisdom of the Dayak Ngaju Community from Traditional Agricultural Systems for Family Income in Buntut Bali, Katingan Regency, Central Kalimantan Yanarita, Yanarita; Tanduh, Yusintha; Silvianingsih, Yosefin Ari; Pidjath, Chartina; Madiyawati, Milad; Sudomo, Muhammad Fadhil Amiruddin; Afentina, Afentina
HUTAN TROPIKA Vol 19 No 2 (2024): Volume 19 Nomor 2 Tahun 2024
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v19i2.18627

Abstract

Local wisdom is knowledge and practices passed down by a group that serves as an identity and strategy carried out in meeting the needs of daily life. This research highlights the local wisdom of the Dayak Ngaju people of Buntut Bali village, Katingan, who use traditional farming systems for their livelihoods. This traditional farming system can not only be adapted to local conditions, but more importantly is able to contribute to food security and local ecological sustainability. The research methodology used was descriptive qualitative method with a field approach through observation and in-depth interviews with farmers who are members of the “Pamaran” farmer group. Data collected included crop types, cropping patterns and constraints faced by farmers. The results revealed that the Ngaju-Dayak community's cropping pattern is a polyculture farming system consisting of annual and seasonal crops. There are 15 types of annual plants dominated by durian and banana. While 14 types of annual crops are managed in rotation and intermittently, according to soil conditions and seasons. Simple economic formulas about the income obtained from the application of traditional agriculture show that crop yields cannot be guaranteed to be profitable, because the results are influenced by how many trees bear fruit that are seasonal, such as durian, langsat and rambutan. In traditional farming systems, there are also often wild plants that are used by the community that cannot be planted but are very popular as vegetables, such as: teken parei. Local wisdom in traditional farming systems needs to be maintained for the preservation of local species and increased innovation in the maintenance and improvement of crop products, especially fruits
Kearifan Lokal Masyarakat Desa Buntoi Kabupaten Pulang Pisau Dalam Pemanfaatan Rotan: Local Wisdom of The Buntoi Village Community in Pulang Pisau Regency in The Utilization of Rattan Ginting, Ira Ersikeromla Br; Tanduh, Yusintha; Silvianingsih, Yosefin Ari; Herianto, Herianto; Hastari, Belinda
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.20633

Abstract

The community of Buntoi Village in Pulang Pisau Regency, especially women, has utilized rattan as a source of livelihood to support family economies and local culture. However, the local wisdom values of rattan utilization are generally only known by the local community, not the wider community. This study describes the processing and local wisdom values of rattan processing in the form of products and motifs. The research respondents were members of the Social Forestry Business Group (KUPS) rattan craftsmen in Buntoi Village, using purposive sampling techniques. Based on the data collected, it shows that rattan weaving is traditional knowledge passed down from ancestors as part of their interaction with the surrounding environment. The weaving motifs are inspired by natural forms, patterns, the surrounding environment, and cultural heritage. The local wisdom values include cultural values found in 13 weaving motifs and 10 motifs of creativity, as well as values of precision and patience, which significantly influence the quality of rattan weaving
Analisis Sifat Kimia Kayu Meranti Tembaga (Shorea leprosula Mig.) Dari Hutan Alam Dan Hutan Tanaman Di PT. Dwima Jaya Utama : Chemical Properties Analysis of Meranti Tembaga Wood (Shorea leprosula Mig.) from Natural Forests and Plantation Forests at PT. Dwima Jaya Utama Joni, Herwin; Santoso, Mahdi; Wahyudi, Wahyudi; Sosilawaty, Sosilawaty; Tanduh, Yusintha; Triyadi, Antonius; Toni, Hendra; Christy, Eva Oktoberyani; Silvianingsih, Yosefin Ari
HUTAN TROPIKA Vol 20 No 1 (2025): Volume 20 Nomor 1 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i1.21999

Abstract

This study analyzes the chemical properties of Meranti Tembaga wood (Shorea leprosula Mig.) from natural forests and intensively managed plantation forests (Silin) at PT. Dwima Jaya Utama. Samples were taken from trees with diameters of 28 cm, 36 cm, 43 cm, and 51 cm to compare extractive content (cold water, hot water, ethanol-toluene), holocellulose, α-cellulose, lignin, and ash levels. Results showed that Silin-grown wood had higher extractive content in cold and hot water but lower lignin and ash levels compared to natural forest wood. α-Cellulose content was consistently high across all diameters, meeting industrial standards. The findings suggest that Silin techniques can produce quality wood with shorter harvest cycles, though chemical properties vary by diameter and origin. This research provides valuable insights for sustainable forest management and industrial applications of Shorea leprosula.
Effectiveness of Gelam Wood Liquid Smoke on the Retention and Absorption Preservatives in Terantang Wood (Campnosperma auriculatum (BI.) Hook.f) Supriyati, Wahyu; -, Alpian; Samosir, July Sarana Dame; -, Yanciluk; Tanduh, Yusintha; Silvianingsih, Yosefin Ari
TROPICAL WETLAND JOURNAL Vol 11 No 2 (2025): Tropical Wetland Journal
Publisher : Postgraduate Program - Lambung Mangkurat University (ULM Press Academic)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/twj.v11i2.138

Abstract

Wood durability is a crucial factor in its utilization, especially in tropical regions with high humidity levels. Terantang wood is classified as lightweight wood with low resistance to wood-degrading organisms. Preservation using liquid smoke is one of the alternative methods to enhance the durability of Terantang wood. This study aims to evaluate the effectiveness of liquid smoke derived from Gelam wood (Melaleuca sp.) as a natural preservative for Terantang wood. The preservation process was conducted using a cold-soaking method for 48 hours with three different liquid smoke concentrations: 10%, 20%, and 30%. After treatment, the wood samples were dried and tested to determine their retention and absorption values. The results showed that increasing the liquid smoke concentration directly correlated with higher retention and absorption values. The 30% concentration exhibited the highest retention (0.055 g/cm³) and absorption (0.241 g/cm³), indicating superior effectiveness in enhancing wood durability. Retention was highest near the heartwood, while absorption was greater near the sapwood. These findings suggest that Gelam wood liquid smoke has significant potential as an eco-friendly and cost-effective wood preservative. Its use can serve as a safer alternative to synthetic preservatives, supporting more sustainable wood processing practices. Keywords: Liquid smoke, Gelam wood, Terantang wood, wood preservation, retention, absorption
Heritabilitas Sifat Tinggi Pohon dan Diameter Batang Shorea balangeran (Korth.) Burck di Kebun Bibit Rakyat dan Shorea leprosula Miq di Kebun Benih Semai Universitas Palangka Raya: Heitability Of Tree Height and Stem Diameter of Shorea balangeran (Korth.) Burck In Community Nurseries And Shorea leprosula Miq in Sedling Seed Orchards and Community Nurseries of The University of Palangka Raya Sudomo, Muhammad Fadhil Amiruddin; Silvianingsih, Yosefin Ari; Pidjath, Chartina; Pindonta , Yopi Em
JURNAL HUTAN TROPIKA Vol 20 No 2 (2025): Volume 20 Nomor 2 Tahun 2025
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v20i2.23913

Abstract

This study aims to estimate the heritability of tree height and stem diameter in two Dipterocarpaceae species, Shorea balangeran from the People’s Nursery and Shorea leprosula from the Seed Orchard of Universitas Palangka Raya. Both species play an important ecological and economic role as dominant components of peat swamp forests and lowland forests. Genetic parameters observed include genotypic variance, environmental variance, phenotypic variance, and heritability values calculated using analysis of variance (ANOVA) in a completely randomized design. The results indicate that variations in both traits are predominantly controlled by genetic rather than environmental factors. Shorea balangeran exhibited high heritability for tree height (86.18%) and stem diameter (84.25%). Likewise, Shorea leprosula showed similarly high heritability for height (85.72%) and diameter (88.53%). These high heritability values suggest that the traits are stable and heritable, making both species suitable as superior seed sources in tree improvement programs. The findings reinforce the importance of selecting plus trees to support conservation efforts and the production of high-quality seeds
Efek Asap Cair Gelam (Melaleuca sp) sebagai Pengawet terhadap Berat Kayu dan Berat Jenis Terantang (Campnosperma auriculatum (BI.) Hook.f) Alpian, Alpian; Samosir, July Sarana Dame; Yanciluk; Tanduh, Yusintha; Silvianingsih, Yosefin Ari; Supriyati, Wahyu; Luhan, Gimson
Jurnal Penelitian Hasil Hutan Vol. 43 No. 2 (2025): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jphh.2025.9744

Abstract

Terantang is commonly found growing in the peat swamp forests of Central Kalimantan. It holds significant economic value in the wood processing industry; however, it has low durability, requiring preservation treatments to enhance its wood quality. This study aims to analyze the impact of Gelam wood liquid smoke concentration and the radial direction of Terantang wood on its physical properties, particularly wood weight and specific gravity, after being stored outdoors under shaded conditions for 5 weeks. A factorial Completely Randomized Design (CRD) was employed, incorporating two factors: liquid smoke concentration (0%, 10%, 20%, and 30%) and radial direction of the wood (near the bark, middle, and near the pith). The data were analyzed using ANOVA, followed by Tukey’s HSD test to determine significant differences between treatments. The results indicated that increasing the concentration of liquid smoke significantly enhanced both the wood weight and specific gravity. The 30% liquid smoke concentration produced the highest increase in specific gravity (0.5240 g/cm³). The radial direction of the wood also had a significant effect, with the near-pith section showing higher specific gravity. The interaction between liquid smoke concentration and radial direction significantly influenced the wood weight. These findings suggest that Gelam wood liquid smoke is an effective natural preservative that can significantly maintain the physical quality of Terantang wood stored outdoors under shaded conditions for 5 weeks, specifically in terms of wood weight and specific gravity. This method shows potential for use in sustainable wood processing industries.