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INDONESIA
Jurnal Ilmu dan Teknologi Kayu Tropis
Published by Masyarakat Peneliti Kayu Indonesia
ISSN : -     EISSN : 16933834     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal ini mempublikasikan artikel asli baik penelitian dasar maupun terapan di bidang ilmu pengetahuan dan teknologi kayu, bahan berlignoselulosa bukan kayu, hasil hutan lainnya dan industri hasil hutan.
Arjuna Subject : -
Articles 316 Documents
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Sifat Fisis dan Mekanis Oriented Strand Board Hibrida Bambu Pada Berbagai Shelling Ratio (Physical and Mechanical Properties of Hybrid Bamboo Oriented Strand Board at Various Shelling Ratios) Rynaldo Davinsy; Sena Maulana; Muhammad I Maulana; Elvara D Satria; Deded S Nawawi; Rita K Sari; Wahyu Hidayat; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 2 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i2.473

Abstract

Hybrid Bamboo Oriented Strand Boards (OSB) were produced to improve bamboo OSB's physical and mechanical properties. Shelling ratio adjustment of the strand type combination could determine the optimal physical and mechanical properties of hybrid bamboo oriented strand boards (OSB). The purpose of this study was to evaluate the physical and mechanical properties of hybrid betung and andong bamboos OSB at various shelling ratios. Steam modified strands of betung and andong bamboo were used as an outer layer and core layer, respectively. Hybrid bamboo OSBs were prepared with 0.7 g cm-3 target density and 8% phenol-formaldehyde resin content. Three layers of OSB were made with outer: core shelling ratios of 30:70, 40:60, 50:50, and 60:40. The physical and mechanical properties of the OSB were tested referring to the JIS A 5908-2003 standard. The targeted board density was achieved and the physical properties of all hybrid bamboo OSB have met the requirement of CSA O437.0 (Grade O-1) standard criteria. The parallel modulus of elasticity (MOE) and modulus of rupture (MOR) increased with increasing outer layer ratio. However, the perpendicular MOE and MOR decreased with increasing outer layer ratio. The internal bonding (IB) of the OSB with a shelling ratio of 30:70 and 40:60 met with the requirement of the CSA O437.0 (Grade O-1) standard.
Characteristics of Sugarcane Bagasse Fiber (Saccharum officinale) Reinforced Polypropylene Composites Nanang Masruchin; Wida B. Kusumaningrum; Ismadi Ismadi; Subyakto Subyakto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 1 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v8i1.510

Abstract

This research investigates utilization of bagasse to make biocomposite with thermoplastic polypropylene by adding maleated acid anhydride (MAPP) as a compatibilizer and several fiber treatments. The blending was performed on Laboplastomil mixer, and sample was prepared by hot press. The effects of fiber loading (20, 30, 40 and 50% by weight), washing with 2% detergent, 5% alkali treatment and MAPP percentage (1, 3, 5, and 7.5% by weight), on the mechanical and physical properties were evaluated. The effect of elevated temperature on biocomposite was revealed by using thermogravimetric analysis under inert condition. Good compatibility and stress transfer was performed on 40% bagasse with alkali treatment by adding 5% MAPP; and the results on mechanical properties was better than detergent treatment. It showed that the mechanical properties for flexural strength, flexural modulus, tensile strength and tensile modulus increase by about 56.64%, 151.78%, 0.07% and 133.33%, respectively than pure matrix. Maleated acid treatment also shows the tendency to decrease water absorption. Alkali treatment also revealed to increase the thermal stability of composite, while the presence of MAPP decreased the thermal stability of composite. But it does not affect when processing is conducted below 225°C.
Potensi Tiga Jenis Kayu Tanah Gambut Sumatera sebagai Bahan Baku Pulp dan Kertas (The Potential of Three Peat Land Woods of Sumatera as Pulp and Paper Raw Material) Kanti D Rizqiani; Yeni Aprianis; Ahmad Junaedi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 2 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i2.192

Abstract

The growth of pulp and paper industries has encouraged the expansion of the industrial plantation forests for pulp wood. The  exotic species planted for pulp wood initially maintained a relatively high productivity, however it decreases in the following rotation cycles.  The peat land wood species of Sumatera could be an alternative for exotic species. However, the insufficient information on the wood properties has brought about they are less considered. This paper examined the fiber quality of Sumatran local peat-wood and its possibility as a raw material of pulp and paper. For specific gravity, samples were selected based on three different diameter groups in each plot. Fiber properties (dimension and fiber derivative values) used to asses the suitability of the wood for pulp and paper raw material were determined in accordance with the method of the Forest Product Laboratory (FPL). The resulted data and information were compared to those of krasikarpa (Acacia crassicarpa Benth.). The results showed that the fiber quality of sekubung wood was classified into grade II, while gerunggang and mahang putih were classified into grade III. The specific gravity of gerunggang wood was higher than these of other woods and comparable to that of krasikarpa. Although the growth of Sumatran local peat-wood is still low, however, conformity with government regulations (Government Regulation Number 57-2016 and Ministry of Environment and Forestry Regulation Number 17-2017) and fiber quality, the local peat-wood could potentially substitute the exotic wood species.
Simultaneous Saccharification and Fermentation of Oil Palm Empty Fruit Bunch Fiber Kraft Pulp to Produce Ethanol Yanni Sudiyani; lrni Fitria; Tami Idiyanti; Wawan K. Haroen; Euis Hermiati
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 1 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v8i1.506

Abstract

The effects of substrate concentration on ethanol production from simultaneous saccharification and fermentation (SSF) of oil palm empty fruit bunch (EFB) kraft pulp by cellulase and Saccharomyces cerevisiae MK 1 were studied. Substrate concentration was varied from 10 to 20%. Cellulase was added at 4 g-1 substrate, while the yeast inoculum was 10% (w v-1). The SSF process was carried out at 37°C, pH 4.5, 100 rpm for 76 hours. Ethanol production were obtained after 24 hours, however, ethanol concentration was decreased after 60 hours of fermentation. The highest ethanol concentration was obtained from samples with substrate concentration of 15% (w v-1). A much higher ethanol concentration was produced when that particular substrate was supplemented with 2% of sugar.
Profil Suhu dan Kadar Air Kayu dalam Pengeringan Oven Pemanas dan Gelombang Mikro (Temperature and Moisture Content Profiles of Woods in Heating and Microwave Ovens Drying) Trisna Priadi; Gunes T W Giyarto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 2 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i2.517

Abstract

This research aimed to evaluate the profile of temperature and moisture content in Pinus oocarpa wood being dried with heating oven and microwave oven.  The size of samples were (25x70x120) mm3.  The temperature profiles in heating oven and microwave oven drying were taken every 10 minutes and 0.5 minutes, respectively. The moisture profiles in heating oven and microwave oven drying were made in every 24 hours and 10 minutes, respectively.  The heating oven was set at 60 °C, while microwave oven was set for 2 minutes intermittently with 5 minutes break.  In microwave drying, the temperature inside the boards increased faster and higher compared to that in the heating oven, which resulted in a faster moisture movement to the board’s surface.  The drying rate of pine increased 48-72 times in microwave compared to that in heating oven.  The moisture content in the centre of boards being dried in heating oven was much higher than that of in the outer parts.  On the other hand, the moisture profile in the woods being dried in microwave oven distributed more evenly.
Determinasi Pola Susun dan Ketebalan Strip Log Core Papan Komposit Sukma S. Kusumah; Bambang Subiyanto; Muh. Y. Massijaya
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 1 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v8i1.511

Abstract

Waste from plywood industry has the potential as raw material in the manufacture of environmentally friendly composite board. The purpose of this research was to develop an environmentally friendly composite board from andong (Gigantochloa pseudoarundinaceae) bamboo veneer, rubber (Hevea brasiliensis) wood veneer, and waste of veneer peeling process ie log core by determining log core strip thickness and arrangement design optimum in composite board productions. Thicknesses of log core strip were 1.2 cm, 1.8 cm, and 2.4 cm. Arrangements of log core strip were type A and type B design. Composite boards were constructed from seven layers. Polyurethane was used as adhesive in composite board productions. The research result showed that the composite board made from andong bamboo veneer with type B in design and 1.8 cm thickness of log core strip performed better quality compared to those of other composite boards. The above type of composite boards fulfill Japanese Agricultural Standard No. 1516, 2003 for structural plywood, but not fulfill China Standard GB/T 19536 2004 plywood for container flooring. Based on result, the composite board was suitable for structural purposes such as door panels, and wall insulation
Sifat-Sifat Arang Aktif Kulit Batang Sagu Hasil Karbonisasi Hidrotermal Herman Siruru; Wasrin Syafii; Nyoman J. Wistara; Gustan Pari
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 18, No 1 (2020): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v18i1.543

Abstract

Kulit batang sagu merupakan salah satu limbah padat pengolahan tepung sagu (Metroxylon sp) yang berpotensi digunakan sebagai bahan baku arang aktif. Tujuan penelitian ini untuk mengetahui sifat-sifat arang aktif kulit batang sagu yang dibuat melalui metode karbonisasi hidrotermal dan aktivasi steam. Pembuatan arang aktif didahului dengan pembuatan prekursor (bahan awal pembuatan arang aktif) melalui metode hidrotermal pada suhu 250 °C dan dilanjutkan dengan aktivasi pada suhu 800 °C selama 0, 60, 80, dan 100 menit. Pengujian proximat dan daya jerap iodin menggunakan standar SNI dan pengamatan struktur arang aktif menggunakan X-ray diffraction (XRD). Hasil penelitian menunjukkan bahwa rendemen 45,90-55,70%, kadar air 5,82-7,06%, zat terbang 5,66-9,40%, kadar abu 12,24-14,54%, karbon terikat 78,36-79,80%, daya jerap iodin 455,59-759,86 mg.g-1, dan derajat kristalinitas 31,66-38,81%. Arang aktif terbaik adalah arang aktif kulit sagu perlakuan steaming 80 menit yang memiliki daya jerap iodin sesuai dengan SNI 06-3730-1995 yaitu ≥750 mg.g-1. 
Pengaruh Jenis Perekat terhadap Sifat Papan Partikel dari Campuran Limbah Vinir Sengon dan Bagas Sorgum Jajang Sutiawan; Suci Mardhatillah; Dede Hermawan; Firda A. Syamani; Subyakto Subyakto; Sukma S. Kusumah
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 18, No 1 (2020): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v18i1.539

Abstract

Limbah industri perkayuan dan pertanian memiliki potensi untuk dijadikan bahan baku dalam pembuatan papan partikel. Penelitian ini bertujuan untuk mengetahui pengaruh jenis perekat terhadap sifat fisis dan mekanis papan partikel. Papan partikel dibuat dengan menggunakan perekat 10% urea formaldehida (UF), 10% fenol formaldehida (PF) dan 20% asam sitrat (CA). Komposisi campuran bahan baku partikel vinir sengon dan bagas sorgum yang digunakan dalam penelitian ini adalah 25:75 berdasarkan berat. Karakteristik papan partikel diuji secara fisis dan mekanis berdasarkan standar JIS A 5908:2003. Hasil penelitian ini menunjukkan bahwa sifat fisis terbaik dimiliki oleh papan yang dibuat  dengan perekat CA. Sementara itu, sifat mekanis terbaik dimiliki oleh papan yang dibuat dengan perekat UF. Berdasarkan hasil penelitian, kadar air, pengembangan tebal, keteguhan patah, dan keteguhan rekat papan partikel telah memenuhi standar JIS A 5908:2003 untuk papan partikel.
Pengaruh Modifikasi Steam dan Pembilasan NaOH terhadap Keasaman Enam Jenis Bambu Muhammad I. Maulana; Marwanto Marwanto; Sena Maulana; Aginsa T. Putri; Nicken O Putri; Denni Prasetia; Deded S. Nawawi; Siti Nikmatin; Fauzi Febrianto; Nam-Hun Kim
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 18, No 1 (2020): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v18i1.540

Abstract

Perlakuan steam dan bilas NaOH 1% telah diketahui meningkatkan sifat fisis dan mekanis Oriented Strand Board (OSB) bambu. Peningkatan tersebut disebabkan oleh menurunnya kadar zat ekstraktif dan komponen berbobot molekul rendah lainnya pada bambu. Selain itu, steam dan bilas NaOH 1% juga diduga mempengaruhi keasaman bambu. Penelitian ini bertujuan untuk menentukan perubahan keasaman yang terjadi akibat perlakuan steam dan bilas NaOH 1% pada enam jenis bambu Indonesia. Enam jenis bambu meliputi bambu andong, betung, tali, ampel, kuning, dan hitam digunakan pada penelitian ini. Sampel bambu dicacah hingga berbentuk partikel dan diberikan dua perlakuan berbeda yaitu steam dan steam + bilas NaOH 1%. Partikel bambu kemudian digiling hingga didapatkan serbuk berukuran 40-60 mesh. Serbuk bambu diekstrak dengan air panas selama 1 jam. Nilai pH filtrat ekstrak diukur menggunakan pH meter. Ekstrak kemudian dititrasi dengan larutan H2SO4 0,025 N hingga pH 4 dan larutan NaOH 0,025 N hingga pH 10. Jumlah larutan penyangga yang ditambahkan ke dalam ekstrak dinyatakan sebagai kapasitas penyangga asam dan basa. Hasil penelitian menunjukkan bahwa jenis bambu dan perlakuan berpengaruh terhadap nilai pH dan kapasitas penyangga. Nilai rata-rata pH enam jenis bambu berkisar 5,20-6,67 dan meningkat setelah perlakuan steam dan Steam + bilas NaOH 1% berturut-turut menjadi 5,97-6,78 dan 7,02-7,63. Kapasitas penyangga asam dan basa enam jenis bambu masing-masing berkisar 0.404-0.525 mmeq dan 0.095-0.1750 mmeq dan meningkat setelah perlakuan steam dan Steam + bilas NaOH 1%.
Identifikasi Senyawa Ekstraktif Kayu Cendana Papua dan Potensinya Sebagai Pengusir Nyamuk Muliyana Arifudin; Renny Purnawati; Abdul Azis
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 18, No 1 (2020): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v18i1.541

Abstract

Penelitian ini bertujuan untuk mengidentifikasi komponen kimia dari kayu cendana Papua (Flindersia sp.) dan menganalisa potensi pemanfaatannya sebagai pengusir nyamuk.  Metode eksperimen yang dilakukan adalah analisis fitokimia kualitatif, analisis GCMS Pirolisis, dan uji mortalitas nyamuk untuk menginvestigasi sifat anti-nyamuk dari jenis kayu ini berdasarkan SNI 06-3566-1994. Hasil analisis fitokimia menunjukkan adanya komponen fitokimia seperti alkaloid, saponin, flavonoid, terpenoid, glikosida dan fenolik. Analisis GCMS pirolisis mengindikasikan bahwa diantara 43 senyawa kimia, butylated hydroxyanisole (5,37%), carbamic acid (5,30%), 2,4 imidazolidinedione (2,13%) and hydrazin (1,23%) adalah senyawa yang berperan dalam mengusir nyamuk. Uji mortalitas nyamuk menggunakan sampel uji dengan komposisi serbuk cendana Papua dan tempurung kelapa sebesar 50:50 menunjukkan tingkat kematian nyamuk tertinggi (55,6%). Hal ini mengindikasikan bahwa jenis kayu ini berpotensi untuk dijadikan sebagai bahan kimia alami pengusir nyamuk.

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