Potensi Pemanfaatan Ipomoea pes-caprae (L.) R. Br. di Hutan Pantai Petanahan Kebumen
Frita Kusuma Wardhani, Erny Poedjirahajoe
DOI: https://doi.org/10.22146/jik.61398
Abstract
Vegetation that grows in coastal forests has high economic potential, one of which is caused by the high bioactive substances that have pharmacological properties. One species that has high potential as a source of natural medicine is Ipomoea pes-caprae (L.) R. Br. This study aims to examine the potential use of I. pes-caprae in its natural habitat in the coastal forest of Petanahan District, Kebumen Regency. More
Kadar Ekstraktif dan Sifat Warna Kayu Jati Plus Perhutani Umur 11 Tahun dari KPH Ngawi
Zulkahfi Zulkahfi, Denny Irawati, Tomy Listyanto, Dian Rodiana, Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.61419
Abstract
The utilization of young teak wood had increased due to the gap in demand and the supply of raw materials. To meet the high demand, Perhutani had planted the fast growing of superior teakwood (Jati Plus Perhutani/JPP). This vegetative reproduction may affect the wood properties. Extractive content is important considering its relationship with the natural durability of wood and colour properties. More
Pengaruh Ukuran Serbuk dan Penambahan Tempurung Kelapa Terhadap Kualitas Pelet Kayu Sengon
Anindya Husnul Hasna, J. P. Gentur Sutapa, Denny Irawati
DOI: https://doi.org/10.22146/jik.52428
Abstract
The waste of sengon (Falcataria moluccana) industry becomes one of the raw materials in the manufactured of wood pellets, because of its potency. However F. moluccana pellets posses low density and calorific value. To improve its properties, a materials mixing with coconut shell parcticles was conducted. This study used material from the waste of sengon (F. moluccana) sawdust and the waste of coconut (Cocos nucifera). More
Distribusi Sel Pori pada Kayu Tarik dan Korelasinya dengan Komposisi Lignin
Deded Sarip Nawawi, Istie Sekartining Rahayu, Nyoman Jaya Wistara, Rita Kartika Sari, Wasrin Syafii
DOI: https://doi.org/10.22146/jik.46207
Abstract
The anatomical properties of tension wood were investigated for number and diameter of vessel and its correlation with lignin composition. Reaction wood sample was taken from the leaning stem of mindi (Melia azedarach). The formation of tension wood reduced the number and size of vessel and, consequently, increased the proportion of fiber. More
Renhart Jemi, Royda Dara Ertini Damanik, Lies Indrayanti
DOI: https://doi.org/10.22146/jik.46208
Abstract
This research aimed to measure the content of Combretocarpus Rotundatus (Miq.) Danser leaf extracts and to test its larvicidal activity against Aedes aegypti. The leaves were macerated and fractionated using methanol, n-hexane, ethyl acetate, and ethanol. The extract contents from the leaves extraction were metanol extract of 15%, n-hexane extract of 51%, ethyl acetate extract of 35% and ethanol extract of 85%. More
Budi Leksono, Lukman Hakim
DOI: https://doi.org/10.22146/jik.40155
Abstract
Illip (tengkawang) nut is a non-wood forest product which has a high economic value and one of export commodities as raw material for illipe nut's fat, cosmetics, and substitution of chocolate fat. Indonesia has 13 species of tengkawang-producing shorea distributed in Kalimantan and some small parts of Sumatra. More
Sri Sunarti, Visda Fitriana, Suharyanto
DOI: https://doi.org/10.22146/jik.40160
Abstract
Crossing between Acacia mangium and Acacia auriculiformis will result Acacia hybrid whether naturally or artificially. Acacia hybrid, as its parents, was developed to support pulp and paper industries. Morphological characteristics of leaves among A. mangium, A. auriculiformis, and its hybrid (A. mangium x A. auriculifomris) were easily differentiated on nursery stage. More
Fanny Hidayati, Ramadhani Ayu Purnama, Harry Praptoyo, Sri Sunarti
DOI: https://doi.org/10.22146/jik.40162
Abstract
Increasing solid wood demand provides an opportunity to fast-growing wood species such as Acacia mangium as semi construction and construction materials. In general, the quality of wood is affected by growth characteristics such as radial growth rate. The study about effect of growth rate on the properties of mangium wood is limited in Indonesia. More
Binderless MDF from Hydroxymethylated Kenaf Pulp
Nyoman J Wistara, Wulan Starini, Fauzi Febrianto, Gustan Pari
DOI: https://doi.org/10.22146/jik.34031
Abstract
Modified lignin with improved reactivity can be a potential alternative for synthetic phenol formaldehyde resin for the adhesive of wood composite. Direct hydroxymethylation of kenaf in the present experiments was intended to increase lignin reactivity, and therefore was expected to result in satisfying properties of binderless MDF. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul. VII. Ketahanan terhadap Rayap Tanah
Ganis Lukmandaru, Pito Wargono, Arsy Rahman Mohammad, Vendy Eko Prasetyo
DOI: https://doi.org/10.22146/jik.34107
Abstract
Teak wood has been used for various uses because of its excellent natural durability as well as beautiful grain and colour of its heartwood. However, variability in natural durability exists between trees of different geographical zones. The previous paper in this series reported on the chemical properties of teak wood from different zones (Nglipar, Panggang, and Playen). More
Karyomorfologi dan Jumlah Kromosom Empat Grup Gyrinops versteegii (Gilg.) Domke. di Lombok
Widya Iswantari, Tri Mulyaningsih, Aida Muspiah
DOI: https://doi.org/10.22146/jik.28284
Abstract
Lombok has four groups of Gyrinops versteegii i.e. Pantai, Buaya, Madu, and Beringin group. Studies of karyomorphology and the number of chromosomes could be very useful for taxonomy and plant breeding. In this study, the preparation used a root tip squash method. The results obtained from this study: groups of G. versteegii had similar chromosome number (n = 9), and similar metacentric chromosomes. More
Hidrolisis Media Sisa Budidaya Jamur Kuping Menggunakan Tiga Jenis Enzim Selulase
Denny Irawati
DOI: https://doi.org/10.22146/jik.24900
Abstract
Ear mushrooms (Auricularia polytricha) belongs to class Basidiomycetes is widely cultivated in Indonesia. After 6-8 months of cultivation, the media should be renewed. Therefore, the rest of the media is under utilized and just thrown away as a waste. This is dangerous because the residual mycelia that contained in the rest of the media may further degrade the media. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul. VI. Kadar Zat Anorganik dan Keasaman
Ganis Lukmandaru, Rudy Nur Hidayah
DOI: https://doi.org/10.22146/jik.24901
Abstract
Inorganic materials and acidity in the wood has been proved to affect the wood properties. The previous paper in this series reported on the physical and chemical properties of teak wood from community forests. Therefore, this study aimed to explore the content of inorganic materials and acidity of teak wood grown in the 3 sites (Panggang, Playen, Nglipar) with different ecological attributes from community forests in Gunungkidul. More
Fanny Hidayati, Isti Tamira Fajrin, Muhammad Rosyid Ridho, Widyanto Dwi Nugroho, Sri Nugroho Marsoem, Mohammad Na'iem
DOI: https://doi.org/10.22146/jik.2181
Abstract
Demand of teak wood increases every year along the increase of human population and prosperity. On the other hand, teak is one of the long rotation tree species. Furthermore, the avaibility of teak from the Perum Perhutani as the biggest teak plantation company is not enough to fulfill the demand of teak wood from wood industry. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul. V. Sifat Kimia Kayu
Ganis Lukmandaru, Arsyi Rahman Mohammad, Pito Wargono, Vendy Eko Prasetyo
DOI: https://doi.org/10.22146/jik.16511
Abstract
This study aimed to explore the chemical properties of teak wood grown in community forests from Gunungkidul Regency. Trees (dbh 28-37 cm) were selected from three different sites i.e. Nglipar, Panggang, and Playen. Three trees were cut from each site and disks were taken from the base of the trees. The disk in radial cross section was divided into 3 parts: sapwood, outer heartwood, and inner heartwood. More
Tomy Listyanto, Fadlul Rahman, Hyana Swargarini
DOI: https://doi.org/10.22146/jik.16513
Abstract
The aims of this research were to investigate the effects of interaction between incising densities and two drying schedules on drying rate and defects as well as to examine the effect of incising densities on static bending characteristics of dried mahogany. More
Kualitas Papan Partikel dari Pelepah Nipah dengan Perekat Asam Sitrat dan Sukrosa
Mahdi Santoso, Ragil Widyorini, Tibertus Agus Prayitno, Joko Sulistyo
DOI: https://doi.org/10.22146/jik.16514
Abstract
Utilization of natural binder for non-wood composite is still limited. Sucrose and citric acid are potential natural binding agents for composite products. Nipa (Nypa fruticans Wurmb.) was non-wood materials which are potentially to be used as an alternative raw material for particleboards. More
Tomy Listyanto, Yusuf Setia Darmawan, Rini Pujiarti, Fanny Hidayati, Ganis Lukmandaru, Joko Sulistyo
DOI: https://doi.org/10.22146/jik.12633
Abstract
The aims of this study were to investigate drying defect characteristics, to develop proper drying schedule, and to analyze the relationship between the developed drying schedule and its wood properties. This study used superior and conventional teak wood of ten years-old planted in Blora, Central Java. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul IV. Sifat Mekanika Kayu
Sri Nugroho Marsoem, Vendy Eko Prasetyo, Joko Sulistyo, Sudaryono, Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.10197
Abstract
Mechanical properties of sawn timber are the most important characteristics in many applications, particularly for structural timber. The previous paper in this series reported on the physical properties of teak trees at different sites (Panggang, Playen, Nglipar) from community forests in Gunungkidul regency. More
Kualitas, Komposisi Kimia, dan Aktivitas Anti Oksidan Minyak Kenanga (Cananga odorata)
Rini Pujiarti, Titis Budi Widowati, Kasmudjo Kasmudjo, Sigit Sunarta
DOI: https://doi.org/10.22146/jik.10179
Abstract
Cananga oil in this study was obtained from fresh flowers of Cananga odorata by water-steam distillation. The result of physical properties of cananga oil were compared with the SNI 06-3949-1005 showed that cananga oil was satisfied the quality prescribed by standard. More
Ragil Widyorini, Ari Puspa Yudha, Ganis Lukmandaru, Tibertius Agus Prayitno
DOI: https://doi.org/10.22146/jik.10180
Abstract
Research on development of citric acid as natural adhesive are still limited. Therefore this research focused on effects of citric acid content and pressing temperature on properties of particleboard made from bamboo, including its durability to the dry termite attacks. Petung bamboo particles were used as raw materials. More
Pengaruh Suhu dan Metode Perlakuan Panas terhadap Sifat Fisika dan Kualitas Finishing Kayu Mahoni
Ragil Widyorini, Khusnul Khotimah, Tibertius Agus Prayitno
DOI: https://doi.org/10.22146/jik.10160
Abstract
Heat treatment is well known as a method for increasing dimensional stability and reducing hygroscopicity of wood. However, heat tratment can cause the color of wood become darker and reduce the wettability, as well as its mechanical properties. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul III. Sifat Fisika Kayu
Sri Nugroho Marsoem, Vendy Eko Prasetyo, Joko Sulistyo, Sudaryono Sudaryono, Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.10162
Abstract
The objective of this work is to explore the variation of physical properties of wood from teak trees grown in 3 different sites (Panggang, Playen, Nglipar) from community forests of Gunungkidul Regency. The measured parameters were green moisture content (GMC), basic density (BD), and linear as well as volumetric shrinkage. More
Ogi Setiawan, Krisnawati Krisnawati
DOI: https://doi.org/10.22146/jik.10165
Abstract
One of the strategies in protected forest rehabilitation is selecting proper Non-Timber Forest Products (NTFPs) species. The selected NTFPs species should have an ecological function to maintain the sustainability of protected forest services. The research aimed to conduct an analysis of NTFPs selection in protected forest rehabilitation framework. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul II. Pengukuran Tegangan Pertumbuhan
Sri Nugroho Marsoem, Vendy Eko Prasetyo, Joko Sulistyo, Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.8547
Abstract
Trees containing large growth stresses, leads to significant losses due to split, checked and also warped. The variation of growth-stress in teak trees grown in the three community forest sites of Gunungkidul regency was observed. The released strain levels were also discussed in relation to the growth-rate and specific gravity. More
Afif Sumaryanto, Sutjipto Achmad Hadikusumo, Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.7516
Abstract
The utilization of younger teakwood has a disadvantage, which is the sapwood is more susceptible to dry wood termites as it has less natural durability. Boric acid and borax are inexpensive preservatives, which contain boron as the active material. Those preservatives are also easy to be obtained as well as do not produce smells and the wood discoloration. More
Studi Mutu Kayu Jati di Hutan Rakyat Gunungkidul I. Pengukuran Laju Pertumbuhan
Sri Nugroho Marsoem
DOI: https://doi.org/10.22146/jik.7529
Abstract
Gunungkidul regency has a potentiality to be a producer of teak wood as raw materials for industrial purposes. This study aimed to find out the growth-rate and increment levels of teak trees from community forests in Gunungkidul regency and to correlate it with the rainfall factor. Three observed sites were Panggang, Playen and Nglipar. More
Terry M Frans
DOI: https://doi.org/10.22146/jik.7530
Abstract
The research aim was to obtain the effect of fodder and sericin degumming agents on asunder filament of golden silkworm cocoon of Cricula trifenestrata Helf. This study expected to find an asunder filament technology in the yarn spinning phase, as the material of silk textile. More
Uji Ekstrak Etanol Kumis Kucing (Orthosiphon sp.) sebagai Pengawet Alami Kayu
Abdul Azis, T.A. Prayitno, Sutjipto A Hadikusumo, Mahdi Santoso
DOI: https://doi.org/10.22146/jik.6137
Abstract
The utilization of plants as a natural preservative agent of wood has not much been explored although the amount and kind of plants are relatively abundant. This study aims to determine the effectiveness of the extract of kumis kucing (Orthosiphon sp.) plant at the extract concentration to solvent of 1:12 , 1:8 and 1:4 against the dry wood termites (Cryptotermes sp.). More
Siti Fatimah, Mudji Susanto, Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.6138
Abstract
Eucalyptus pellita F. Muell (E. pellita) is one of the fast growing species, which is being developed through tree breeding program. The development of this species had produced good results in the genetic growth characteristics in the first and second generation of progeny trials. More
Kombinasi Boraks dan Asam Borat sebagai Bahan Penghambat Api dan Antirayap Pada Kayu Meranti Merah
Mahdi Santoso, Sutjipto A. Hadikusumo, Abdul Aziz
DOI: https://doi.org/10.22146/jik.5735
Abstract
Woods have properties which are easy to be ignited by fire and most of them have a low natural durability. Therefore, it is required to improve the quality of wood by impregnating the fire-retardant and anti-termites possessed chemicals. The aim of this research was to investigate the effect of impregnation duration by combination of borax:boric acid ( 1:1) against the fire and termites. More
Utilization of Carbonized Wood from Tropical Fast-Growing Trees for Functional Materials
Joko Sulistyo, Toshimitsu Hata, Sri Nugroho Marsoem
DOI: https://doi.org/10.22146/jik.5736
Abstract
Establishment of fast-growing tree species plantations in tropical areas generate wood biomass residue in which some of them are currently utilized for heating fuel and some others are used for charcoal production with limited purposes. The development of functional materials for engineering applications utilizing carbonized wood from fast-growing trees species have to consider the microstructure and pore structure in carbonized wood which has a relationship to the carbonization conditions. More
Ganis Lukmandaru, Kristian Vembrianto, Anisa Alfiana Gazidy
DOI: https://doi.org/10.22146/jik.3306
Abstract
Wood and bark extracts of three mangifera species, mangga (Mangifera indica L.), pakel (Mangifera foetida Lour), and kweni (Mangifera odorata Griff.) were examined for its antioxidant activity (AOA). Each stem part was extracted with methanol (MeOH) and the crude extract was then sequentially partitioned with n-hexane, ethyl acetate (EtOAc) and n-butanol to obtain four different fractions. More
Lina Karlinasari, Merry Sabed, Nyoman J. Wistara, Aris Purwanto, Hari Wijayanto
DOI: https://doi.org/10.22146/jik.3310
Abstract
Research on non-destructive test of near infrared (NIR) spectroscopy method was still limited in Indonesia. The aim of this study was to determine near infrared (NIR) spectroscopy (wavelength range within 780 nm -2500 nm) characteristic of wood species of Acacia mangium. The samples were selected from three different ages e.g. 5 year, 6 years, and 7 years grown in Maribaya area of Parung Panjang Distric. More
Pengaruh Konsentrasi Asam Sitrat dan Suhu Pengempaan terhadap Kualitas Papan Partikel Pelepah Nipah
Ragil Widyorini, Tibertius Agus Prayitno, Ari Puspa Yudha, Bhaktiar Adi Setiawan, Budi Hari Wicaksono
DOI: https://doi.org/10.22146/jik.3313
Abstract
Binderlessboard is one of the potential eco friendly products that can be developed in Indonesia. However, its boards usually have low in dimensional stability. Addition of the chemical agent, such as citric acid, that can improve the dimensional stability is needed. Citric acid has three hydroxyl groups that can be ester-linked with hydroxyl groups from wood. More
Ris Hadi Purwanto, Nius Abdi Ginting
DOI: https://doi.org/10.22146/jik.1856
Abstract
Asam jawa (Tamarindus indica) and mahoni (Swietenia macrophylla) which predominantly grow on the community forests of Bangunjiwo Village are an ideal candidate as raw matterial of charchoal production because they're hard wood makes good quality charchoal and income from its charchoal are an attractive source of supplemental revenue. More
Komponen Kimia Kayu Jati dengan Pertumbuhan Eksentris
Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.579
Abstract
The objective of this study is to learn the quality of abnormal woods. The specimens were 10 leaning trees obtained from thinned teak (Tectona grandis L.f.) stand in Randublatung, Central Java. In each tree, the eccentric growth parts were isolated, then wood meal sample was drilled at the outer heartwood part of both maximum annual-ring width (upper part of leaning stem) and in its opposite side, which had minimum annual-ring width (lower part of leaning stem). More
Fathul Yusro, Wasrin Syafii, Eko Sugeng Pribadi
DOI: https://doi.org/10.22146/jik.1562
Abstract
Pelanjau wood (P. motleyi) extractives traditionally used as medicine for skin infection such as scabies (tinea) and rash caused by fungal T. mentagrophytes and C. albicans. The aim of this research was to identify the effectiveness of pelanjau wood extractives on growth inhibitory of fungal T. mentagrophytes and C. albicans, isolate and identify extract compounds which have antifungal properties. More
Sifat Anatomi dan Sifat Fisika Kayu Mindi (Melia azedarach Linn) dari Hutan Rakyat di Yogyakarta
Harry Praptoyo
DOI: https://doi.org/10.22146/jik.1558
Abstract
Information about mindi wood characteristics is very limited while utilisation of this wood on our society is very extensive. Better knowledge on anatomical and physical wood properties of mindi wood optimizes its utilization. Therefore, this study aims to identify anatomical (macroscopic and microscopic) and physical (moisture content, specific gravity and dimensional changes) wood properties of mindi taken from community forests around Yogyakarta More
Pengukuran Kadar Ekstraktif dan Sifat Warna pada Kayu Teras Jati Doreng (Tectona grandis)
Ganis Lukmandaru
DOI: https://doi.org/10.22146/jik.1045
Abstract
Teak (Tectona grandis L.f) in certain areas of Java usually has black streaked heartwood or has been known as "doreng". In general, the color of wood is related to the kinds and amounts of extractives, therefore, black streak that appeared on the heartwood was studied by means of color measurements and the determination of extractive content. More
Ris Hadi Purwanto, Dian Asih Kurniasari
DOI: https://doi.org/10.22146/jik.1510
Abstract
The potential of merchantable timber and firewod of teak (Tectona grandis) in Desa Natah community forest was estimated by developing allometric equations method. To establish the allometric equation 350 sample trees were measured to determine the relationships between tree height (H) and diameter breast height (D). More
Yustinus Suranto
DOI: https://doi.org/10.22146/jik.1512
Abstract
Decreasing supply of most commercial depterocarp wood as raw material inspirates wood working industry producing building construction component to look for uncommercial wood to be utilized. Proper utilization of these woods must be based on wood properties consisting of wood basic and processing properties. More
A Review of Relationships Between Wood Quality and Silvicultural Practices
Tomy Listyanto, John Doland Nichols
DOI: https://doi.org/10.22146/jik.1513
Abstract
The effect of silviculture on wood quality has been approached from different perspectives. This relationship is being a critical concern of forest managers, landowners, and also researchers. Reliable information is needed to support forest managers in predicting the consequences of various silvicultural practices in terms of quantity and wood quality. More
Denny Irawati, Norman Razief Azwar, Wasrin Syafii, I Made Artika
DOI: https://doi.org/10.22146/jik.925
Abstract
Currently, Indonesia is in the middle ofpetroleum crisis. One ofthe alternative fuels which can be used as a petroleum substitute is ethanol. Ethanol can be produced from timber waste (sawdust). Indonesia in 2003 had timber waste potency of about 3-4 millions m3. However, ethanol production from sawdust has problems due to its lignin content. More
Model Lengkung Bentuk Batang (Taper Curve) Pohon Jati (Tectona Grandis)
Ronggo Sadono, Muhammad Dimas Trisnomo, Askar Askar
DOI: https://doi.org/10.22146/jik.927
Abstract
Detailed information on tree volume for fancy wood, such as teak, is important to estimate its financial value. Therefore, a method of estimating stem volume in portion wise is developed. The objective of this study was to apply a parabolic taper curve in various tree strata. More
Pengaruh Metode Pengeringan dan Jenis Sortimen Kayu Suren terhadap Kecepatan dan Cacat Pengeringan
Yustinus Suranto, Mugiyana
DOI: https://doi.org/10.22146/jik.929
Abstract
Efforts to improve productivity of wood industry must be supported by increasing supply of wood as raw materials. The limited wood supply due to natural forest degradation can be increased by wood harvested from plantation forests, including wood of suren (Toona sureni Merr) as one species composing the forests. In timber processing wood drying is an important aspect determining product quality. More
Lusita Wardhani, Suriansyah Suriansyah
DOI: https://doi.org/10.22146/jik.1534
Abstract
The research aimed to find out the mechanical strength of MoE and MoR of lamina woods with different forms and combinations of the extension. Balau wood (Shorea leavis Ridl) was used as an experiment object.The research experiment was assigned based on Completely Randomized Design with two treatments and three replications. More
Bio-Economic Perspective to Fuelwood Policy Options in Uganda: A Demand–Supply Nexus
Buyinza Mukadasi, Masaba Sowedi
DOI: https://doi.org/10.22146/jik.1535
Abstract
This study examines the benefits and costs of selected policy options for increasing fuelwood supplies or decreasing fuelwood demand in Hoima district, Uganda. On the supply side, a benefit-cost analysis is done on a government sponsored tree farming project. In order to reduce the demand for fuelwood, two demand-side options are considered, namely, introduction of an improved energy-efficient woodstove, and the substitution of a kerosene stove for a traditional woodstove. More
Noor Mirad Sari, Rosidah Rosidah, Muhamad Yuliadi Rahman
DOI: https://doi.org/10.22146/jik.1536
Abstract
Nipah fruit (Nyfa Fruticans Wurmb) is a seasonal forest product abundantly produced in each season. Nipah fruit flour is believed to also function as an extender during adhesion process of wood products such as plywoods and particle boards. The study aims to determine the right composition between nipah fruit flour and industrial flour as an extender which, together with urea formaldehyde adhesive, to be applied to particle board. More
Sutjipto A Hadikusumo
DOI: https://doi.org/10.22146/jik.1552
Abstract
Effect of Tobacco Extracts on Apus Bamboo (Gigantochloa apus Kurz) resistance against Drywood Termite Cryptotermes cynocephalus Light (Gigantochloa apus Kurz) Attacks Bamboo is one of community forest products and people use it for many purposes. Due to insect attack such as termite, the life time of bamboo product is short. More
Ahmad Jauhari, Noor Mirad Sari
DOI: https://doi.org/10.22146/jik.1539
Abstract
Effect of Variation yeast addition and Duration of Fermentation on the Amount of Ethanol Produced from Sawdust of Ulin Wood (Eusideroxylon zwageri T et B)The research was aimed to assess the influence of different levels of yeast addition and duration of fermentation on the amount and percentage of ethanol produced from sawdust of ulin wood as raw material. More