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All Journal Katalogis Journal of Tropical Soils Indonesian Journal of Forestry Research Jurnal Penelitian Hasil Hutan Journal of Degraded and Mining Lands Management Elektum : Jurnal Teknik Elektro JMM (Jurnal Masyarakat Mandiri) Jurnal Nusa Sylva Tropical Wetland Journal Journal of Applied Data Sciences Wood Research Journal : Journal of Indonesian Wood Research Society Jurnal Serambi Abdimas Media Pertanian Jurnal Pengabdian Ilung (Inovasi Lahan Basah Unggul) Jurnal Penyuuhan dan Pemberdayaan Masyarakat (JPPM) Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Indonesian Journal of Forestry Research ARCHITECTURA: Journal of Architecture and Planning
Krisdianto Sugiyanto
Centre for Forest Product Research and Development
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COLOR DIFFERENCES OF PINE AND EUCALYPT WOODS MEASURED BY MICROFLASH-200® Krisdianto, Krisdianto
Indonesian Journal of Forestry Research Vol 4, No 2 (2007): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2007.4.2.83-91

Abstract

It is not easy to define color because it refers to psychological response of human. As a result, perception of color achieved by people is relatively different.  Wood color plays an important role in timber processing and it is an important consideration in wood identification. Each wood species has specific color and it becomes the species characteristic. Colors in wood are highly variable and unique features. Characteristics of wood color are influenced by extractive materials and moisture contents present on it. A standard of color measurement has been developed and it is called CIE model. The standard was developed to be completely independent of any devices and was based as closely as possible on human observation in color. CIELAB system is one of the simplest and most practical color measurement methods. The system has been used in one of the color measurement devices developed by Data Color International that is Microflash-200®. This research was aimed at translating interpretation of wood color by human eye into mathematical values so that scientific measurement of wood color can be studied. The measured wood color were 10 species of pines and 10 species of eucalypts woods in dry condition. The results showed that the two groups had different average of L*, a* and b* values. The average of L* for pine was 70.77, while eucalypt group made up to 52.40. It means that eucalypt group is darker than pine group. For a* value, pine group mean value is 20.23, whereas eucalypt group touches 19.11. In other words, pine and eucalypt group have an approximately similar redness. The b* value average for pine and eucalypt groups are 43.40 and 29.07, respectively. This value means that pine group is more yellow than eucalypt group.
METAL CORROSION IN WATERBORNE PRESERVATIVE- TREATED WOOD Sugiyanto, Krisdianto; Sudika, Didik A.
Indonesian Journal of Forestry Research Vol 7, No 2 (2010): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2010.7.2.91-99

Abstract

The rigidity and firmness of wooden construction and furniture those are joined by metal screws depend on corrosion rate of these metals. This paper examines the weight-loss percentage of metal screws used in wood samples that have been treated with water-borne preser vative (i.e.3% borax boric acid and 3% diffusol CB) and concurrently investigates the effect of brake fluid on preventing metal corrosion. Wood samples tested included three acacia and one eucalypts wood species which were grouped into sapwood and heartwood containing samples. Wood samples fastened with metal screws were freely suspended in glass jars that contained 25 ml of sulphuric acid (H2SO4) to keep the humidity rate above 90%. After 12 months, the metal screws lost their weight due to the corrosion brought about by the related factors either in separate individual or in combination, which comprised brake and fluid-dipping , wood species, wood portion (sapwood and heartwood), kinds of preser vatives used. Corrosion rates of metal screws fastened in eucalypts wood sample as indicated by the screw-weight loss (i.e. 5.8%) was more severe than that fastened in acacia wood. Furthermore, corrosion rate of metal screws as fixed firmly in sapwood sample proceeded faster than that in heartwood. This might be caused by the higher moisture content in sapwood. On the other hand, corrosion rate of the screws as fastened in waterborne-preser vative-treated wood samples was greater than that in non-preser ved wood due to electrokinetic characteristics and ionic potential exhibited by the preser vative thereby intensif ying the screw-corrosion process. Meanwhile, less severe corrosion was obser ved and recorded on the screws pre-dipped in brake fluid compared to those on the non-dipped screws
RADIAL VARIATION IN MICROFIBRIL ANGLE OF SUPER AND COMMON TEAK WOOD Krisdianto, Krisdianto
Indonesian Journal of Forestry Research Vol 5, No 2 (2008): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2008.5.2.125-134

Abstract

ANATOMICAL PROPERTIES AND FIBER DIMENSION OF PRICKLY ACACIA (Acacia nilotica L.) FROM BALURAN NATIONAL PARK Krisdianto, Krisdianto; Damayanti, Ratih
Indonesian Journal of Forestry Research Vol 4, No 2 (2007): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2007.4.2.93-103

Abstract

Acacia nilotica (L.) Willd. ex. Delile growing in Baluran National Park has dramatically altered the ecological balance of grasslands and thereby threatens the existence of local biodiversity. Prickly acacia is able to spread rapidly and remains uncontrollable. Baluran National Park authorization has been struggling to control this prickly acacia trees. One possible action that can be taken to encounter this problem is allowing wood based industries, and local people take advantages of this nilotica timber utilization. This paper studies the anatomical properties and fiber dimensions of nilotica timber and discusses the possible utilization of  nilotica timber.   This timber is characterized by dark brown heartwood which is clearly distinct from reddish brown color of sapwood. The denser cell wall shows attractively streaked in tangential surfaces. The length of  wood fiber decreases from pith toward periphery portion. Longitudinally, higher stem has shorter fiber. Nilotica wood has second class quality of fiber, which means its fiber is moderately thick with narrow lumen diameter. Due to small log diameter and branches, the nilotica timber is not recommended for construction material. The timber is suitable for carved and turnery products. Nilotica timber is suitable for charcoal manufacture and fuel wood due to its high calorific value.
ANATOMICAL AND PHYSICAL PROPERTIESOF BISBUL WOOD (Diospyros blancoi A.DC.) Krisdianto, Krisdianto; Abdurachman, Abdurachman
Indonesian Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2005.2.1.57-67

Abstract

Ebony (Diospyros sp.)  is a heavy hardwood that is  popularly known as blackwood. Diospyros consists of over 300 species spread throughout tropics area and about 100 species occur in Indonesia. Bisbul wood (Diospyros btancoi A.DC.) is one species of  streaked ebony that is locally known as buah mentega.  The anatomical and physical properties of  bisbul  were studied to collect information  for wood identification  and to support appropriate use of the timber. Anatomical properties were studied from microtome sectioned samples, which have been coloured by safranin and mounted by entellan, while fiber dimensions  were studied from macerated samples.  Physical properties  of  bisbul wood studied include moisture content, density and percentage of volumetric shrinkage. Moisture content and density were studied from 20 x 20 x 20 mm samples based on wet and oven dry condition. Volumetric shrinkage was measured from dimension changes in radial, tangential and longitudinal shrinkage of 20 x 20 x 40 mm samples. The samples were measured in wet and oven dry conditions. The main anatomical characteristics to identify bisbul wood were black wood with pinkish streaked, heavy and very hard,  very fine texture, even, lustrous surface and glossy, distinct growth ring, small size of vessels, apotracheal parenchyma forming reticulate pattern. The average moisture content was 59.86 ± 2.84%,  the density average was 0.74 ± 0.04 gr/cm3  and volumetric shrinkage was 10.41±0.70%.   The higher the stem, the more moisture  content and the lower the density will be. Sapwood density was lower and had more moisture  content than heartwood. The black pinkish heavy wood, bisbul was recommended to be used for carvings, sculpture, souvenir and luxuryinterior products.
THE EFFECT OF HEAT TREATMENT ON THE DURABILITY OF BAMBOO Gigantochloa scortechinii Kamarudin, Norashikin; Sugiyanto, Krisdianto
Indonesian Journal of Forestry Research Vol 9, No 1 (2012): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2012.9.1.25-29

Abstract

Bamboo signifies as one of the fastest growing plants and it can be used for various products. Intropical countries such as Indonesia and Malaysia, bamboo is abundantly available at reasonable prices, therefore it is used for numerous purposes. However, as lignocellulosic material, bamboo is susceptible to fungal and insect attacks. Heat treatment is an option to improve bamboos durability. The objective of this study was to improve the durability of bamboo using hot oil palm treatment. A Malaysian grown bamboo species, Buluh Semantan (Gigantochloa scortechinii), as a study material was soaked in hot oil palm for various temperatures and soaking time, before being inoculated with the basidiomycete Coriolus versicolor in an agar block test. The results demonstrated that the longer the heating time, the more improved the durability of bamboo. Altering the temperature in the palm oil treatment produced varying results. Bamboo blocks that heated in hot oil palm at 100°C for 60 minutes shows considerably less weight eduction that indicates less fungal attack. Overall, the higher the temperature, the better the durability of bamboo. Please indicates what the meaning of heat treatment in this experiment, it is not clear.
EFFECT OF ACTIVATED CHARCOAL ADDITION ON FORMALDEHYDE EMISSION OF MEDIUM DENSITY FIBERBOARD Darmawan, Saptadi; Sofyan, Kurnia; Pari, Gustan; Sugiyanto, Krisdianto
Indonesian Journal of Forestry Research Vol 7, No 2 (2010): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2010.7.2.100-111

Abstract

The manufacturing of medium density fiberboard (MDF) using dry forming process for interior purpose requires extensive amount of thermo-setting urea formaldehyde (UF) adhesive. Unfortunately, this adhesive brings about formaldehyde emission from the resulting MDF, which was potentially harmful to human beings. The use of activated charcoal can be effective to reduce such emission. As the relevance, this research aimed to investigate the effect of activated charcoal addition to the MDF pulp on formaldehyde emission from the MDF. The fibers for the MDF-mat forming were the pulp procured from the MDF factory, resulting from the thermo-mechanical pulping (TMP) conducted on the mixed mangium wood (Acacia mangium) and rubber wood (Hevea brasiliensis) in 3:1 (w/w) proportion, respectively.  Such mixed TMP pulping was also done in the factor y.  The bonding between TMP pulp fiber during mat forming was assisted by the use of UF adhesive.  Prior to the MDF mat forming , was added to the resulting TMP pulp-fibers activated charcoal in  various amount, 2%, 4% and 6% based on fiber mass as well as based on UF adhesive mass. The activated charcoal was prepared by carbonizing candle nut shell into charcoal followed by activation process using phosphate solution.  Meanwhile the forming of MDF mat employed air-dr y process. As the control, MDF forming with UF adhesive was performed without addition of activated charcoal. It turned out that the activated charcoal-added MDF exhibited effective reduction in formaldehyde emission and significant improvement in physical and mechanical properties, i.e. lower thickness swelling , and greater MOR , MOE and internal bond, compared to the control MDF. The use of activated charcoal at 4% based on the adhesive mass seemed to be the optimum amount.  Physical and mechanical properties of the activated charcoal added MDF could mostly meet the JIS specification.
MINIMIZING RESIDUAL STAND DAMAGE AND FELLING COST USING LOWEST POSSIBLE FELLING TECHNIQUE (A case study in one logging company in West Kalimantan) Suhartana, Sona; Krisdianto, Krisdianto
Indonesian Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2005.2.1.1-11

Abstract

The implementation of felling technique in logging companies is not yet carried out efficiently and appropriately. Study on the lowest possible felling technique (LPFf) is considered  to be important to  reduce residual  stand damage and felling cost. This study was carried out in a logging company in West Kalimantan in 2004. The aim of this study was to  determine the effect of LPFT on residual stand damage and felling cost. Data collected in this research include: residual stand damage, working time, timber  volume, productivity,  efficiency,  stump   height  and  felling cost.  Two categories  data were analyzed with  respect  to  their  possible  differences  using  T-test.    The  result  showed  that  the implementation   of  LPFT  was more advantage impact compared  to   that of  conventional felling technique, which is  indicated by the following factors:  (1)  Trees damage decreased 2.96%;  (2) Poles damage decreased 4.75%;  (3) Felling productivity decreased 17.16%; (4) Felling efficiency  increased approximately  3.2%;  (5) Felling cost increased about Rp 327.07 /  m; and (6) in average stump height was 40.60 cm lower.
ANATOMICAL CHANGES OF KEKABU WOOD (Bombax ceiba L.) DUE TO MECHANICAL DENSIFICATION Krisdianto, Krisdianto; Balfas, Jamal
Indonesian Journal of Forestry Research Vol 2, No 1 (2005): Journal of Forestry Research
Publisher : Secretariat of Forestry Research and Development Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/ijfr.2005.2.1.27-36

Abstract

Kekabu wood  (Bombax  ceiba L.), which is  locally known as kapok or randu  has long been planted  as crops troughout  the country, as fiber producer aimed for stuffing  pillow. This species is considered as a giant tree which could produce a large quantity of timber. Unfortunately, the timber is too soft, having low density and several physical defects during drying, limiting its uses in conventional wood processing. Any treatment which could significantly increase its structural density may be useful for diversifying the uses of this timber.   This study examined some anatomical changes that may exist during mechanical densification. Wood samples measuring 40 mm thick, 40 mm wide and 500 mm long were steamed at 126°C for 30 minutes prior to  pressing of 23.75 kg/cm.  Anatomical measures were undertaken using light microscope and scanning electron microscope  on both treated and untreated samples. Results showed that the treatment  significantly reduced void volume and ray distance of approximately a half the initial wood structure, followed by an increased in wood density of more than 50%.
KETERAWETAN ENAM JENIS KAYU DARI JAWA BARAT DAN RIAU Krisdianto, Krisdianto; Sudika, Didik Ahmad; Wahyudi, Ahmad; Muslich, Mohammad
Jurnal Penelitian Hasil Hutan Vol 33, No 4 (2015): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.4.329-336

Abstract

Kayu merupakan bahan lignoselulosa yang mudah terserang organisme perusak sehingga perlu diawetkan untuk meningkatkan umur pakainya. Tingkat perlindungan kayu dipengaruhi oleh keberhasilan masuknya bahan pengawet ke dalam kayu. Retensi dan penetrasi bahan pengawet ke dalam kayu adalah dua parameter yang ditetapkan untuk mengukur keberhasilan masuknya bahan pengawet ke dalam kayu (keterawetan). Retensi bahan pengawet dihitung berdasarkan sistem gravimetrik perbedaan berat, sedangkan penetrasi diukur berdasarkan perbedaan warna akibat uji semprot (spot test). Saat ini, penetrasi bahan pengawet dinilai secara visual dan persentasinya dalam bidang luasan dihitung secara konvensional. Interpretasi penetrasi bahan pengawet dapat dilakukan berdasarkan foto digital menggunakan perangkat lunak Image-J. Tulisan ini mempelajari keterawetan enam jenis kayu dari Jawa Barat dan Riau. Perbandingan pengukuran penetrasi dilakukan dengan cara konvensional dan interpretasi foto digital. Hasil penelitian menunjukkan bahwa kayu hamirung, jaha dan mahang putih termasuk mudah diawetkan (kelas I), sedangkan kayu bung bulang, pasang taritih dan bira-bira termasuk kelas keterawetan sedang (kelas II). Penilaian penetrasi dengan interpretasi digital lebih akurat, cepat, dan mudah daripada dengan cara konvensional. 
Co-Authors Abdurachman Abdurachman Ahmad Wahyudi Ahyarki Abidin, Afri Akbar, Arief Rahmad Maulana Aliudin Aliudin, Aliudin Amalia Rezeki Amalia, Khofifah Juni Ambarwati, Rieski Anisah, Siti Nur Anna Hairani Anni Nurliani Az Zahra, Aisyah Nur Budi Kristanto Choiron, Dodik Deni Almanda Dewi Sri Susanti Didik A. Sudika Didik Ahmad Sudika, Didik Ahmad Erry Purnomo Erwin Dermawan Fatkur Huda Ghozali, Rahmad Gustan Pari Gustan Pari Hakimah Halim Heri Budi Santoso Hindarto, Imam Hozaini, Imron Humaida, Nida Jamal Balfas Jasni Jasni Kurnia Sofyan Kurnia Sofyan Listya Mustika Dewi Louisa, Virgina Maria Mahrita, Mahrita Manik, Tetti Novalina Meiganati, Kustin Bintani Mitsuru Osaki Mohammad Muslich Munsyi, Munsyi Nahdatunnisa, Nahdatunnisa Norashikin Kamarudin Oni Soesanto Prezwloka, Simon Putri, Fahriza Nahdya Putri, Galuh Melati Rahmat Eko Sanjaya Rahmat Yunus Rasjava, Achmad Ramadhanna'il Ratih Damayanti Salsabilla, Salma Nadia Saptadi Darmawan Saptadi DARMAWAN Sembiring, Rinawati Setia Budi Peran Setiawan Sariyoga, Setiawan Setiyowati, Arin Slamat, Slamat Sona Suhartana Sri Cahyo Wahyono Suhartono, Bunga Rahmasari Susilo, Tanto Budi Sutomo Sutomo Sya'roni, Mohammad Thresye Thresye Thresye,, Thresye, Tun Susdiyanti Tutiana, Tutiana Umi Baroroh Lili Utami Utari, Nofi Vinden, Peter Virgine, Maria Helena Yulia, Raina Yunita, Rizmi Yuyun Hidayat