Jurnal TENGKAWANG
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KARAKTERISASI SENYAWA CICERFURAN DARI FRAKSI ETIL ASETAT EKSTRAK AKAR KAYU LABAN (Vitex pubescens Vahl) (Characterization of Cicerfuran Compounds From The Ethyl Acetate Fraction of Laban Root Wood Extracts (Vitex pubescens Vahl)
Full text linkOne of the many traditional medicinial plant species found in West Kalimantan is Laban wood (Vitex pubescens Vahl) which extracts are used to treat diseases. Therefore it is expected that exist in the plant of bioactive compounds. This study aims to determine the bioactive compounds in root extracts of Laban from the ethyl acetate fraction to characterize the single compounds. The methods used was the isolation by chromatography column and identification by Liquid Chromatography Mass Spectroscopy (LCMS), Ultra Violet (UV), Infra Red (IR), Nuclear Magneitc Resonance (NMR) and Heteronuclear Multiple Bond Correlation (HMBC). The results obtained from spectrum data Mass Spectroscopy (MS), UV, IR, HMBC and NMR indicated presence of cicerfuran which is a stilbene derivative compound. Keywords : Cicerfuran, ethyl acetate, root extracts, Vitex pubescens Vah
DEFORESTASI DAN DEGRADASI HUTAN AKIBAT KEGIATAN TAMBANG EMAS DI KAWASAN HUTAN GUNUNG PANI : METODE PEMANTAUAN MENGGUNAKAN CITRA SATELIT MULTI TEMPORAL
No full textSpatial information on small scale gold mining activities and its impact to the forest are still scarce. The research objective was to develop practical remote sensing method for mining activities monitoring in forest area especially in identifying gold mining location and asses forest cover changes (deforestation, forest degradation, regrowth) due to gold mining in Gunung Pani forest area, Gorontalo Province, Celebes. Landsat imagery were chosen since Landsat is a continuous and free remote sensing program which enable a sustainable and practical monitoring. Using Landsat imagery facing some obstacles such as inadequate spatial resolution and SLC-off of the Landsat 7 imagery. A multi-temporal Landsat imageries recorded in 2000, 2003and 2013 were used. The 30 meter Landsat imageries were pan-sharpened in order to increase its spatial resolution. Some pan-sharpening methode were explored and evaluated. Supervised classifications were applied to the best pan sarphened images. Spatial analysis by means of GIS was conducted in order to identify mining location and to assess forest cover change. High spatial resolution imagery of QuickBird was used as a reference to improve derived information quality and to reduce volume of the ground check activities. The results showed that Landsat 7 continued by Landsat 8 system provide continuous and valuable data for mining monitoring in the forest area. The developed methods proved that it is practically possible to assess forest cover changes due to mining activities. Small-scale mining areas were possible to be identified by combining remote sensing methods and GIS analysis. Key word: deforestation, degradation, gold mining, Gunung Pani, Landsat imager
INVENTARISASI TUMBUHAN BAWAH BERKHASIAT OBAT DI TAMAN NASIONAL DANAU SENTARUM KABUPATEN KAPUAS HULU PROVINSI KALIMANTAN BARAT Inventory Underground Plant as Source of Medicinal Plants from Danau Sentarum National Park Kapuas Hulu Regency West Kalimantan
Full text linkDiversity of biological resources in primary forest is not only limited to the woody plant species, but also covered by underground plant which has diverse species high diversity. This underground plant as one part of the forest ecosystem is a plant that has potential as a medicine. The study aims to conduct an inventory of underground plant species in Danau Sentarum National Park Kapuas Hulu Regency West Kalimantan Province. The method used a plot inventory with studied area of 6 hectares, and sampling intensity of 0.4% across the sample plots with an area of 4 m2. Each rectangular-shaped sample plots with a size of 2 m x 2 m, and total number of sample plots was 50 plots. The sample plots are arranged systematically with distance between sample plots in a baseline was 10 m, while the distance between the baselines was 100 m. A line was made perpendicular to the river. The results showed there are 60 species underground plant which 42 species was a medicinal plants, 15 species was a shrubs, 27 species of herbs, ferns totaled 7 species, fungi consists of 4 species, 16 species of grass and 18 species was other underground plant. The Riang Bejid plant (Medinilla crassifolia) has the highest density value, frequency, INP and Shannon diversity index than other underground plants. The INP of Riang Bejid was 20.625%. Based on the test of phytochemicals, underground plant has secondary metabolites which contained alkaloids, flavonoids, saponins and sterols. This underground plant has a potential as medicine and anti-cancer. Keywords: Danau Sentarum National Park, inventory, medicinal plant, underground plan
PEMBERIAN AMELIORAN PADA TAILING UNTUK MENINGKATKAN PERTUMBUIHAN KEMIRI (Alaurites moluccana (L) Wild DI PERSEMAIAN
Full text linkGold mining activities have negatively impacted post-mining land into poor nutrients, low pH, toxic soil, due to heavy metal content, low water holding capacity, low organic matter content and unstable land conditions. To change the tailings to be more productive many of the available technologies, such as the use of manure, compost, litter or the use of soil microbes such as mycorrhiza. The addition of manure can additionally increase nutrient available, can also improve the physical and biological properties of the soil. Alaurites moluccana (L) Wild) is one of the plants classified as a pioneer species because it can grow on critical land with low soil fertility and open soil. Research on ameliorant of tailings to increase the growth of A. moluccana in the nursery aims to obtain a mixture of ameliorants with the tailings to enhance the growth of A. moluccana in the nursery. Treatment was given to the growth of seedlings of A. moluccana using the Completely Randomized Design (RAL) exprotment method with a total of 8 treatments that included an ameliorant tailing control, tailings with ameliorant a (1: 1, 1: 2, and 1: 3), tailings with ameliorant b (1: 1, 1: 2, and 1: 3) and ultisol soil control, with each treatment repeated 5 times. Data collected were shoot hight (cm), stem diameter (mm), number of leaves and dry weight of plant. The result of tailings treatment with addition of organic ameliorant gave a very significant effect on the growth of height, diameter, number of leaves and dry weight of the A. Moluccana. The best media treatment for all parameters is M6 (tailings: kotoran sapi 1: 3). Although virtually all treatments with organic ameliorant provide better results than controls without the addition of organic ameliorants.Keywords: Tailings, ameliorant, A. moluccana , organic
IDENTIFIKASI JENIS TUMBUHAN BAWAH YANG BERKHASIAT OBAT DI KAWASAN ARBORETUM SYLVA UNIVERSITAS TANJUNGPURA
Full text linkUnderstorey plants has many function, beside for the ornamental plants, it also has a function for medicinal plants. The research aimed to exploration understorey plant in Arboretum Sylva Universitas Tanjungpura and identification the understorey plants as medicinal plant. Arboretum Sylva Universitas Tanjungpura was located in the central of Pontianak City with average area around 3.2 hectares. The methods for exploration and identification the understorey plants were with inventory methods in all area of arboretum. The plant was collected and identification the used of plant to medicine was conduct by in depth interview with the person who has used the plants and from references of literature. The result of research found 23 understorey plants and divided into 19 families. The understorey plants which has a function for medicinal plants consist of Imperata cylindrica, Asplenium nidus, Lophatherum gracile, Stenochlaena palustris, Piper aduncum Lim, Melastoma malabathricum, Mimosa pudica, Ageratum conyzoides, Pyrrosia piloselloides, Justicia gendarussa, Cordyline fruiticosa, Sansevieria trifasciata, Manihot esculenta, Capsicum frutescens, Nymphaea alba, Ananas comosus, Euphorbia tithymaloides, Phyllanthus urinaria, Saccharum officinarum, Alpinia galanga, Aloe vera, Piper ningrum and Pandanus amaryllifolius. The families of understorey plants consist of Poaceace, Aspleniaceae, Blechnaceae, Piperaceace, Melastomaceae, Fabaceae, Asteraceae, Polypodiaceae, Acanthaceae, Asparagaceae, Ruscaceae, Euphorbiaceae, Solanaceae, Nymphaeaceae, Bromeliaceae, Phyllanthaceae, Zingiberaceae, Xanthorrhoeaceae, and Pandanaceae. The plants use to overcome the fever, headache, reduce high blood pressure, and anti-inflamation.Keyword: Arboretum Sylva, fever, medicinal plants, understorey plants, Zingiberacea
KUALITAS PAPAN KOMPOSIT LIMBAH KULIT BATANG SAGU (Metroxylon sp) DAN PLASTIK POLIPROPILENA BERDASARKAN JUMLAH LAPISAN PENYUSUN
Full text linkThe objective of this research is to evaluate the effect of the number of composite layers on the quality of the composite board from sago bark waste and plastic waste, and the number of composite layers that produce the best quality on composite board. The composite board is made with size 30 cm x 30 cm x 1 cm. The composition and division of the material was carried out manually with the polypropylene distribution divided into three parts: the front and rear respectively of 15%, and the center 70% of the plastic weight. Target density of composite boards was 0.7 g / cm3. The treatment used is based on the number of layers composing, which is 5 layers, 7 layers, 9 layers, 11 layers and 13 layers. After mixed the sago bark particle and waste of polypropylene, the materials then compressed with hot press at 180oC with pressure about ± 25 kg / cm2 for 10 minutes. The composite boards then tested the quality included physical and mechanical properties. Testing of physical and mechanical properties refers to JIS A 5908-2003 standard. Physical properties consist of density, moisture content, thickness swelling, and water absorption. Mechanical properties consist of modulus of rupture, modulus of elasticity, internal bonding, and modulus of screw holding strength. The study used a completely randomized design experiment consisting of 5 treatments and 3 replications. The results showed the average value of composite density was range between 0.6962 – 0.7896 g/cm3, the moisture content was range between 4.3388 % - 6.8066%, the thickness swelling was range between 8.2605% - 11.9615%, and water absorption was range between 17.2380% - 22.3867%. The average value of modulus of rupture was range between 60,0632 kg/cm2 – 64,4068 kg/cm2, the modulus of elasticity was range between 17935,1813g/cm2 – 32841,8278 kg/cm2, the internal bonding was range between 1,9268 kg/cm2 - 5,4119 kg/cm2, and the modulus of screw holding strength was range between 78,2530 kg/cm2 – 92,9677 kg/cm2. The composite board made from sago stem bark waste and polypropylene waste plastic with 13 layers treatment is the best composite board and fulfilled the JIS A 5908-2003 standard. Keywords: bark of sago, composite boards, layer of composite, polypropylenes plastic, wast
APLIKASI UMPAN RAYAP BERBAHAN AKTIF HEXAFLUMURON PADA DOSIS BERBEDA DALAM PENGENDALIAN SERANGAN RAYAP DI PERKEBUNAN KELAPA SAWIT
Full text linkSubterranean termites Coptotermes curvignathus has found as pest in oil palm plantation. The research aimed to control the termites in oil palm plantation using Hexaflumuron bait with different dosage. Location of research was oil palm plantation at Purun village in Mempawah Regency. The study was conducted by a completely randomized design method. The research treatment was dose of Hexaflumuron termite bait, consisting of 30 gram and 60 gram. Three blocks was choosing as a sample treatment consists of block H 35, block H 38 and block H 39. Hexaflumuron bait has weight 30 gram. Treatment dose of 30 gram was conducted with lay down the bait of Hexaflumuron at the mud tunnel of termites in the trunk of oil palm. Treatment dose of 60 gram was conducted with lay down two bait of Hexaflumuron at the mud tunnel of termites in the trunk of oil palm in the different place. Then inspection of bait consumption was conducted every week. Data of bait consumption and termites elimination was collected. Results of the research showed that Hexaflumuron bait was consumed by termites up to 100%. The bait has attracted the termites to consume and non-repellent to termites. After four until seven week consumption the Hexaflumuron bait, termites eliminated from the oil palm. The result of variance analysis showed that there was no significance difference between the dose of 30 gram and 60 gram on the termite consumption level. Hexaflumuron bait was effective for termites elimination in oil palm plantation within four until seven weeks and dose 30 gram was optimum for termites elimination.Keywords: Coptotermes curvignathus, hexaflumuron, oil palm, termites bait, termites contro
PERTUMBUHAN BIBIT AREN (Arenga pinnata Merr) PADA MEDIA TANAH ULTISOL DIPERSEMAIAN
Full text linkArenga pinnata Merr is a multipurpose trees species that has long been known to produce industrial materials. Based on the utilization of Arenga pinnata Merr is not only limited to the food alone but also used as a raw material for industrial and land conservation. Arenga pinnata Merr has prospect good to be developed in the tree crop plantations. Arenga pinnata Merr cultivation activities require good quality seeds. Currently Arenga pinnata Merr still growing naturally in the forest. Exploitation by the farmers during this time in the form of Arenga pinnata Merr exploitation of the forest without cultivation. There are concerns Arenga pinnata Merr that grows in nature will be destroyed. The purpose of this research to study the effect of a doses of organic fertilizer and dolomite lime on the growth of Arenga pinnata Merr in the nursery. The study used an experimental method with a completely randomized design factorial models. The study consisted of two factors: factors of organic fertilizer and lime dolomite with five repetitions with a number of plant samples as many as 100 plants. The measured parameters include length midrib, stem diameter and stem height were analyzed using SAS IX. The research proves that organic fertilizer dose of 300 g and 35 g dolomite lime can increase the growth of palm in the nursery. Keywords: Arenga pinnata Merr, fertilizer, lime, organic
INVENTARISASI TUMBUHAN BAWAH BERKHASIAT OBAT DI TAMAN NASIONAL GUNUNG GEDE PANGRANGO PROVINSI JAWA BARAT BERBASISKAN ANALISIS SPASIAL
Full text linkDiversity of biological resources in primary forest is not only limited to the woody plant species, but also covered by underground plant which has diverse species high diversity. This underground plant as one part of the forest ecosystem is a plant that has potential as a medicine. The study aims to conduct an inventory of underground plant species in Gunung Gede Pangrango National Park West Java Province. The method for inventory used spasial analysis with land management unit and multi stage sampling. The spasial analysis used three categories, first the zonation map, second the soil characterization map and the third altitude map. The LMU consist of 6 areas with total plot number 60. The results showed there are 83 species underground plant consist of 45 family. The family consist of Acanthaceae, Annonaceae, Apiaceae, Apocynaceae, Araceae, Araliaceae, Aspleniaceae, Asteraceae, Balsaminaceae, Begoniaceae, Compositae, Convolvulaceae, Cucurbitaceae, Cyperaceae, Elaeagnaceae, Equisetaceae, Fabaceae, Gesneriaceae, Gramineae, Hypoxidaceae, Lamiaceae, Malvaceae, Marattiaceae, Melastomataceae, Menispermaceae, Moraceae, Musaceae, Myrsinaceae, Oxalidaceae, Passifloraceae, Piperaceae, Plantaginaceae, Polygalaceae, Primulaceae, Rosaceae, Rubiaceae, Sellagineaeeae, Smilaceae, Solanaceae, Symplocaceae, Urticaceae, Verbenaceae, Woodsiaceae, Zingiberaceae. The underground plant has a potential as medicinal plant.Keywords: Gunung Gede Pangrango National Park, inventory, land management unit, medicinal plant, underground plan
SKRINING FITOKIMIA DAN AKTIVITAS ANTIBAKTERI EKSTRAK KULIT BATANG (Eusideroxylon zwageri) TERHADAP Escherichia coli DAN Salmonella typhi
Full text linkDiarrhea and typhoid fever are diseases commonly suffered by people in Indonesia, and bacteria such as Escherichia coli (diarrhea) and Salmonella typhi (typhoid fever) are one of those diseases causative agents. Various plants are potentially used as anti-bacterial including ulin (Eusideroxylon zwageri). The aims of this study were to analysis the yield and potential secondary metabolite content in ethanol extract of E. zwageri, and determine the optimal concentration in inhibits the growth of bacteria E. coli and S. typhi. The methods used in this study were measure the moisture content of E. zwageri wood bark powder, extraction with ethanol solvent, measure the yield percentage, qualitative of phytochemical analysis, and antibacterial assays. The results showed that the yield of ethanol extract of E. zwageri is 21,63% with 7,6% of moisture content. The extract positively contained alkaloids, flavonoids, tannins, saponins, phenolics and terpenoids. The optimum concentration in inhibits the growth of bacteria E. coli is 200 mg/ml and categorized as very strong inhibition response, and 15 mg/ml is concentration used in inhibits the S. typhi and categorized as strong inhibition response.Keywords: Antibacterial activity, Escherichia coli, Eusideroxylon zwageri, phytochemical screening, Salmonella typhi