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INDONESIA
PERENNIAL
Published by Universitas Hasanuddin
ISSN : 14127784     EISSN : -     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
“PERENNIAL” adalah artikel ilmiah hasil penelitian dan review asli dalam bidang teknologi, pengolahan, dan kebijakan pemanfaatan hasil hutan serta belum pernah dipublikasikan dan tidak sedang dalam proses penelaahan dalam jurnal ilmiah, bulletin, atau bentuk publikasi lainnya. Artikel yang dinyatakan diterima, hak publikasinya menjadi milik penerbit dan penulis tidak dapat mempublikasikan tulisan yang sama dalam jurnal atau bentuk publikasi ilmiah manapun.
Arjuna Subject : -
Articles 164 Documents
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Pengaruh Hot Water Extraction terhadap Sudut Kontak Octomeles sumatrana dan Duabanga moluccana dan Kaitannya terhadap Zat Ekstraktif dan Struktur Anatomi Kayu: Effect of Hot Water Extraction on Contact Angle of Octomeles sumatrana and Duabanga moluccana Woods and Its Correlation to the Extractive Content and Anatomical Structure Marbun, Sari Delviana; Wahyudi, Imam; Suryana, Jajang; Nawawi, Deded Sarip; Ratih, Damayanti; Silaban, Rosalia
PERENNIAL Vol 21 No 2 (2025): Vol. 21 No. 2, October 2025
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v21i2.44044

Abstract

Binuang bini (Octomeles sumatrana) and binuang laki (Duabanga moluccana) are fast growing species that have the potential to be developed as engineered wood products. However, previous studies have shown that both wood species have high contact angle values due to the extractive content and the high acidity. Therefore, this study aimed to examine the effect of hot water extraction (HWE) pretreatment to eliminate these limiting factors. The results proved that HWE pretreatment statistically significantly decreased the contact angle of binuang bini wood but not for binuang laki wood. HWE pretreatment resulted in a decrease in the levels of hot water-soluble extractive content and degradation of other wood chemical components. The different effectiveness of HWE pretreatment on binuang bini and binuang laki wood on improving the contact angle is influenced by differences in the quantity and quality of extractive substances as well as differences in the anatomical structure characteristics of these species.
Preferensi Bersarang dan Morfometrik Lebah Tanpa Sengat di Kabupaten Luwu, Sulawesi Selatan, Indonesia: Nesting Preferences and Their Morphometric Stingless Bees in Luwu Regency, South Sulawesi, Indonesia Prastiyo, Andi; Rajab, Marwan; Irfan, Muhammad; Rahman, Abd.
PERENNIAL Vol 21 No 2 (2025): Vol. 21 No. 2, October 2025
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v21i2.45554

Abstract

Stingless bees (Apidae: Meliponini) are pollinators in tropical ecosystems that show morphological and ecological variations between species. This study aims to identify nesting preferences and their morphometric characters of stingless bees in Luwu Regency, South Sulawesi, Indonesia. Data collection was carried out through field surveys to access nesting preferences of stingless bees by locating their natural nests and documenting them in different habitats, after which bee samples were measured to obtain morphometric data. Data were then analyzed using one-way Analysis of Variance (ANOVA), Pearson correlation, and hierarchical clustering with SPSS 30.1.1.1.. Observations showed that stingless bees preferred Lansium domesticum trees as nest locations (42.5%), with variations in nest height, elevation, and entrance size that differed significantly between species (p < 0.05). The results showed that Tetragonula fuscobaltea had the smallest body size (2.99 ± 0.05), while T. biroi was larger (3.97 ± 0.10 mm) and formed a contiguous morphometric cluster, where there were two main groups, with T. fuscobaltea separated from the other three species. Strong positive correlations were found between body characters (r > 0.95), while environmental variables such as elevation and nest height did not show significant relationships to morphometry. The results of this study are expected to be the basis for the identification of stingless bee species morphometrically, as well as supporting the development of natural habitat-based conservation and the improvement of local bee cultivation in Luwu Regency and the South Sulawesi region in general.
Pengaruh Aplikasi Finishing Yakisugi Terhadap Sifat Fisis dan Mekanis Kayu Rajumas (Duabanga moluccana): The Effect of Yakisugi Finishing Application on the Physical and Mechanical Properties of Rajumas Wood (Duabanga moluccana) Amir, Hafidzah Amani; Lestari, Andi Tri; Ningsih, Rima Vera
PERENNIAL Vol 21 No 2 (2025): Vol. 21 No. 2, October 2025
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v21i2.47509

Abstract

This study aims to examine the influence of yakisugi surface charring treatment on the physical and mechanical properties of Rajumas wood (Duabanga moluccana). The method involved surface burning for 0 (control), 20, 40, and 60 seconds using a butane gas torch. Tests were conducted on moisture content, density, shrinkage, water absorption, thickness swelling, modulus of rupture (MoR), and modulus of elasticity (MoE). Statistical analysis using one-way ANOVA followed by Tukey’s HSD test (α = 0.05) was performed to evaluate treatment effects. The results showed that burning duration affected both physical and mechanical properties of Rajumas wood. Longer burning durations improved dimensional stability by reducing moisture content, water absorption, and swelling; however, mechanical strength (MoR and MoE) tended to decrease at 60 seconds due to partial thermal degradation of cell wall polymers. Moderate exposure (20–40 seconds) provided an optimal balance between improved stability and acceptable strength retention. This study highlights the novel application of Yakisugi to a fast-growing tropical hardwood, offering a sustainable surface modification technique for enhancing durability and performance in non-structural wood applications.
Karakteristik Fisika dan Mekanika Papan Partikel dari Limbah Serbuk Gergaji Meranti Merah (Shorea leprosula): Effect of Board Thickness on The Physical and Mechanical Properties of Particleboard Made from Red Meranti (Shorea leprosula) Sawdust Waste Nona, Risna; Nurmarini, Eva; Fadilla, Ferdi Alim; Kutana, Agung Nugrawan
PERENNIAL Vol 21 No 2 (2025): Vol. 21 No. 2, October 2025
Publisher : Forestry Faculty of Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v21i2.47452

Abstract

The wood processing industry produces red meranti (Shorea leprosula) sawdust waste. This waste is generally not optimally utilized and can have negative impact. The use of sawdust as a raw material for particleboard is an environmentally friendly and economically valuable solution, given that particleboard has the potential to replace solid wood in the wood industry. This study aims to utilize red meranti sawdust waste as raw material for particleboard production using urea formaldehyde adhesive with different particleboard thicknesses. This studi evaluates the effect of thickness variations (1 cm, 1.5 cm, and 2 cm) on the physical properties (moisture content, density, and thickness swelling) and mechanical properties (elasticity/MoE, breaking strength/MoR, and tensile strenth) of particleboard. The results of testing the physical properties of particleboards showed that the average moisture content ranged from 10.92 % to 11.76 %, the density ranged from 0.54 g/cm3 to 0.6 g/cm3, and the thickness swelling ranged from 4.05 % to 12.02 %. Mechanical property testing of particleboard showed that the average MoE ranged from 9,110 kg/cm2 to 67,813 kg/cm2, MoR ranged from 9.44 kg/cm2 to 37.93 kg/cm2, and internal bonding ranged from 0.292 kg/cm2 to 0.396 kg/cm2. Based on the results of statistical analysis, it shows that in testing physical properties, thickness variation does not affect moisture content and density, but affects the thickness swelling of particleboards after being immersed for 2 and 24 hours. In mechanical property testing, thickness variation did not affect internal bonding, but it did affect MoE and MoR. Overall, this study confirms the potential of red meranti sawdust waste as a raw material for particleboard, although improvements are needed in increasing mechanical strength, particularly MoR and internal bonding.

Page 17 of 17 | Total Record : 164

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