Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Jurnal Ilmu dan Teknologi Kayu Tropis

JITKT
Website

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

7 8 9 10 11

Aktivitas Antifungi Ekstrak Akar Mahoni terhadap Isolat Botryodiplodia theobromae Pat. Penyebab Mati Pucuk pada Bibit Jabon (Antifungal Activity of Mahogany Root Extracts against Botryodiplodia theobromae Pat. Isolate Causing Dieback on Jabon Seedling) Syamsul Falah; Achmad Achmad; Aji Winara
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 13, No 1 (2015): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Dieback on jabon (Anthocephalus cadamba (Roxb.) Miq.) seedling caused by fungi Botryodiplodia theobromae Pat. decreased seedling’s quality and nurseries economic benefits. The control of dieback pathogen on jabon seedling used biofungicide from plant extract have not been studied intensively nowadays. Mahogany (Swietenia macrophylla King.) is one of the promising medicinal plants in Indonesia but its utilization as a biofungicide specially for controlling the dieback on jabon seedling has not been reported. This research aimed to examine the antifungal activities of mahogany root extracts against B.theobromae isolate causing dieback on jabon seedling in vitro. The poisoned food technique was used in assay of the antifungal activities of mahogany root extract. The result showed that mahogany root extract has antifungal activities against B.theobromae with the highest efective growth inhibition was the metanol solvent on 50% concentration level. Microscopical examination showed the inhibition of mycelium growth was caused by the changes on hyphae morphology and growth direction which were beads formation and curling.Keywords: antifungal, Botryodiplodia theobromae, jabon, mahogany root

Pemanfaatan Kayu Manis (Cinnamomun burmanii) Berdiameter Kecil untuk Balok I-joist sebagai Bahan Konstruksi (Utilization of Small-Diameter Cinammon Logs for I-joist Beam as Construction Material) Abdurachman Abdurachman; Han Roliadi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 2 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Wood-processing industries currently face the limitation of large-diameter wood logs, due to their scarce stocks from natural forests. Wood from plantation forests can deserve consideration as an alternative raw material for those industries. However, plantation-forest woods are usually of small-diameter sizes and lower qualities compared to those of natural forest woods. One solution to deal with those problems is the conversion of plantation-forest woods into the reconstituted wood products, which can be arranged to various desirable sizes, and more beneficial for construction and other purposes. Hereby, the manufacturing of reconstituted wood products, called I-joist beam was tried from small-diameter plantation forest wood species, i.e. cinnamon wood (Cinnamomum burmanii). The assembling used phenol-resorcinol-formaldehyde adhesive. Mechanical properties of the I-joist beam with vertical-gluing profiles between laminae in the web portion were lower than those of the corresponding small-sized defect-free solid wood, but higher than those of I-joist with horizontal-gluing profiles between laminae in the web as well as the horizontally laminated beam made-up of cinnamon wood-laminae. The angle between wood ray and gluing line (plane) correlated negatively with the strengths of I-joist beam. These results indicated the positive prospect of manufacturing I-joist beam from small-diameter cinnamon wood for construction material.

The Effect of Steaming and Heat-Compression on the Properties of Jabon Wood for Furniture Materials Efrida Basri; Abdurachman Abdurachman; Wahyu Dwianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 2 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The inferior properties of juvenile jabon wood (Anthocephalus cadamba Miq.) limit its utility. Densification through heat-compression presently conducted is possibly useful to improve its properties. Preceding heat-compression, jabon wood samples were either steamed or non-steamed. Heat-compression temperatures were varied at 170 C, 180 C and 190 C. Compression was carried out until 20% reduction in wood thickness. Physical and mechanical properties and machining properties of the compressed wood samples were determined in accordance with standard procedures of ASTM D143-94 and ASTM D1666-64, respectively. In the present works, both of the ASTM standard referred were slightly modified. X-ray diffractometer (XRD) was used to determine crystallinity degree of wood. The result showed that either steamed or not, densification was successfully increased the properties of juvenile jabon wood and satisfied the requirement of wood for furniture raw materials.Keywords: furniture, heat pressure, steaming, wood properties, young age-jabon

Effects of Wood Species and Log Diameter on Veneer Recovery B. Kewilaa
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 5, No 2 (2007): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The total plywood production depends on veneer production due to log consumption. The ratio of veneer volume to log volume was stated as veneer recovery. The veneer recovery was affected by wood species and log diameter. Three wood species of Shorea selanica, Terminalia catapa and Duabanga moluccana were used in this experiment with four levels of log diameters. This experiment used the split block design and orthogonal polynomial analyses for equal space. The statistical analysis shows that wood species, log diameter and their interaction gave significance to highly significant effects on veneer recovery. The regression model for effect of log diameter (X) on veneer recovery (Y) by orthogonal polynomial analysis was Y = 34.373+ 0.429 X, with R2 = 0.7366

Characteristics of Laminated Bamboo Lumber Glued with Tannin Resorcinol Formaldehyde Ignasia M Sulastiningsih; Adi Santoso; Barly Barly; Mohamad I Iskandar
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The objective of this study were to determine the characteristics of laminated bamboo lumber (LBL) glued with tannin resorcinol formaldehyde with particular focus on the effects of varying pre-treatment of bamboo strips and extender content on the properties of LBL. Bamboo strips for LBL fabrication were prepared from mature culms of andong bamboo (Gigantochloa pseudoarundinaceae). The strips were assigned into 4 groups by pre-treatment methods: untreated, cold soaking in 5% boron solution for 2 hours, bleached with 17.5% H2O2 solution, and bleached with 20% H2O2 solution. The LBL was manufactured using tannin resorcinol formaldehyde (TRF) added with extender at 4 levels equal to 0, 2.5, 5, and 10% of TRF. The cold pressing time applied was 4 hours. The results showed that the average density, moisture content, thickness swelling, bending strength and bonding strength of LBL produced were 0.77 g cm-3, 8.9%, 5.2%, 1146 kg cm-2, and 51.5 kg cm-2 respectively. No delamination occurred in all samples which indicating high bonding quality. There was strong interaction between pre-treatment of bamboo strips and extender content in affecting some properties of LBL. In general three-layer thick LBL glued with tannin resorcinol formaldehyde adhesive had strength values similar to wood strength class I. Laminated bamboo lumber is suitable for wood substitute especially for furniture material.Key words: extender, laminated bamboo lumber, pre-treatment, tannin resorcinol formaldehyde

Wood Drying Method by “Teresan” Process on Sengon Wood (Paraserianthes falcataria L. Nielsen) Yoyo Suhaya; Bambang Subiyanto; Yoshinori Kobayashi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 3, No 2 (2005): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

This research aims to confirm the effect of conventional teresan process as a natural drying on Sengon (Paraserianthes falcataria L. Nielson) standing trees, and to develop a new teresan process by adding Arboricide.The experiment was done in dry season at Kuningan, West Java. For the conventional teresan process, living trees were nicked into the cambial layer around the trunk at 15 ~ 25 cm in height from the ground. For the new teresan process, 25% percent kerosene solution of Arboricide Garlon 480EC was coated at the nick of the tree.Living Sengon trees in dry season showed high moisture content, i.e. around 60 ~ 100%. By the conventional teresan process, the reduction of moisture was almost the same as control trees. On the other hand, by the new teresan process coating with 25% kerosene solution of Arboricide Garlon 480EC it showed a large reduction of moisture content from over 100% to 30% in 4 months. The new teresan process showed the drying speed of 0.66% per day; higher than that of the conventional process, i.e. 0.24% per day. The new teresan process could be suggested as a high-speed natural drying method in the forest.

Biodeteriorasi Semilaboratoris Daun dan Ranting Mangium dengan Aktivator Jamur Saprofitik (Semi-Laboratory Scale Biodeterioration of Mangium Leaves and Twigs with Saprophytic Fungal Activators) Djarwanto Djarwanto; Sihati Suprapti
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 15, No 1 (2017): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Logging operation of mangium (Acacia mangium)’s forest generates enormous amount of wastes, such as cut-wood pieces, wood barks, twigs, and leaves. The wastes, mainly twigs and leaves are left unutilized on logging sites. Biodeterioration of these wastes is slow and therefore disturb local nutrient cycle. In the present researches, biodeterioration of mangium’s twigs and leaves were accelerated by the use of eight (8) saprophytic rotting-fungi activators. Biodeterioration was assessed using organic-carbon content, total-nitrogen content, nutrient content, and cation-exchange capacity (CEC). It was found that the C/N ratio after 30 and 90 days fungal inoculation decreased to 23-32 and 16-23, respectively. C/N-ratios of lower than 20 were achieved by the use of Pycnoporus sanguineus (isolate HHBI-317), Marasmius sp, Polyporus sp., and Schizophyllum commune innoculated for 90 days. Inoculation both for 30 and 90 days increased CEC value to >27 me per 100 g. The high CEC value increased their adsorption capacity, storage capacity, and nutrient availability needed for plant growth.Keywords: Acacia mangium, biodeterioration, eight activator fungal species, inoculan, logging wastes, nutrient content.

Aplikasi Panas sebagai Alternatif untuk Mengawetkan Kayu Heat Treatment as an Alternative for Wood Preservation Jasni Jasni; Pipin Permadi; Didik A. Sudika; Rusti Rushelia
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Most of Indonesian wood species are classified as less durable, so preservation is needed. Wood preservation inIndonesiamainly depends on imported preservatives. The preservatives are not only toxic to wood destroying organism but also to humans and the environments. Therefore alternative to treat wood should be sought and developed in term of the preservatives used as well as the methods. One that can be proposed is treating wood at high temperature combine with environmentally friendly preservatives, as tried in this experiment.The wood species used in this experiment were rubber wood (Hevea brasilliensis) and pine (Pinus merkusii). Both woods were treated with borax at two concentrations (3% and 5%) by cold-soaking method for 24 hours. The treated woods were subsequently air dried. Then those woods were treated at three levels of high temperature (180ºC, 200ºC, and 220ºC) in an oven for one hour. Finally, the treated wood samples were laboratory-tested by assessing their resistance to dry wood termites (Cryptotermes synocephalus Light.) and powder-post beetles (Heterobostrychus aequalis Wat).The results revealed that increases of heating temperature and concentration of preservatives resulted in more durable woods. In this regard their resistance to dry wood termite and powder-post beetles was increased as shown by smaller weight loss. Treating wood at temperature of 180ºC combined with borax at concentration of 3% resulted in 100% termite mortality on rubber wood and pine.

Natural Resistance of Rattan Species from Sumatra Against Subterranean Termite and Its Relation to Chemical Properties (Ketahanan Alami Rotan Asal Sumatra terhadap Rayap Tanah dan Hubungannya dengan Sifat Kimia) Arsyad, Waode OM; Efiyanti, Lisna; Kalima, Titi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (38.454 KB)

The main problem of rattan utilization was the ravages of destructive organisms attack. The objective of this study was to determine the natural resistance of rattan species from Sumatra against subterranean termites and its relation with the chemical characteristics of rattan. All samples were tested for resistance to subterranean termite and its chemical characteristics according to the Indonesian National Standard. Observations, percentage weight loss, termite survival and degree of attack were determined. Results showed that Calamus insignis, C. holttumii, Daemonorps verticillaris, and D. longipes included in very resistant (Class I). Korthalsia flagellaris, C. zonatus, C. laevigatus, D. sepals, C. spectatissimus, C. rugosus, and C. oleyanus included in resistance class II. Furthermore, D. micracantha included in the class of moderate resistance (class III). The cellulose content has no significant correlation (P>0.01), and lignin has a significant negative correlation (P<0.01) to the weight loss, termite survival and the degree of attack. Rattan that has resistance class I and II can be utilized as raw material of furniture and crafts, while rattan which have resistance class III require preservation treatment to extend its service life.Keywords: chemical properties, rattan, resistance class, subterranean termite

Aktivitas Antioksidan Ekstrak Kulit Wuru (Antioxidant activity of Wuru Bark Extractives) Arief H Prianto; Annisa Alfira; Eka Putri
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 2 (2016): 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.v14i2.212

Wuru (Cinnamomum cinereum Gamble) has many compounds which are potential as medicine. It’s spread out in Java, Sumatera and Kalimantan. Research of antioxidant activity of wuru barks is still limited. The objective of this study was to evaluate the antioxidant activity of wuru bark extract and its chemical composition. The barks were extracted using n-hexane, ethyl acetate and methanol. Antioxidant capacity was determined by 1,1-diphenyl-2-pikril-hidrazil (DPPH). Vitamin C was used as a comparison. Three fraction of methanol extract showed very high antioxidant activity. They have IC50 value 6.2, 7.89, and 13.3 ppm, respectively.

Page 9 of 32 | Total Record : 316

7 8 9 10 11

Filter by Year

2003 2022

Filter By Issues

All Issue Vol 20, No 1 (2022): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 18, No 1 (2020): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 2 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 1 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 15, No 2 (2017): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 15, No 1 (2017): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 2 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 1 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 13, No 2 (2015): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 13, No 1 (2015): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 2 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 2 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 1 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 2 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 2 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 1 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 9, No 2 (2011): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 9, No 2 (2011): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 9, No 1 (2011): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 2 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 2 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 8, No 1 (2010): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 7, No 2 (2009): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 7, No 1 (2009): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 6, No 2 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 6, No 1 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 6, No 1 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 5, No 2 (2007): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 5, No 1 (2007): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 4, No 2 (2006): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 4, No 1 (2006): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 3, No 2 (2005): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 3, No 1 (2005): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 2 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 1, No 1 (2003): Jurnal Ilmu dan Teknologi Kayu Tropis Vol 1, No 1 (2003): Jurnal Ilmu dan Teknologi Kayu Tropis More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Unknown,

Unknown

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Unknown, Unknown INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Unknown,

Unknown

INDONESIA