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INDONESIA
PERENNIAL
Published by Universitas Hasanuddin
ISSN : 14127784     EISSN : -     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science
“PERENNIAL” adalah artikel ilmiah hasil penelitian dan review asli dalam bidang teknologi, pengolahan, dan kebijakan pemanfaatan hasil hutan serta belum pernah dipublikasikan dan tidak sedang dalam proses penelaahan dalam jurnal ilmiah, bulletin, atau bentuk publikasi lainnya. Artikel yang dinyatakan diterima, hak publikasinya menjadi milik penerbit dan penulis tidak dapat mempublikasikan tulisan yang sama dalam jurnal atau bentuk publikasi ilmiah manapun.
Arjuna Subject : -
Articles 8 Documents
 1 
Search results for , issue "Vol. 8 No. 1 (2012)" : 8 Documents clear
SELEKSI PRIMER UNTUK ANALISIS KERAGAMAN GENETIK JENIS BITTI (Vitex coffassus) . Gusmiaty; Muh. Restu; Ira Pongtuluran
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.211

Abstract

The successful of genomic DNA amplification using RAPD technique was determined by the sequence of primer’s base and primer compound in each reaction. The aim of research was finding the best primer for genetic diversity analyses of Bitti (Vitex coffassus). The results of amplification showed that number of band between one to five bands (110-600 bp). The primer of OPK-10, OPA-17, OPQ-07 and OPP-08 can be used for genetic diversity analyses of Bitti. The best primer used for genetic diversity analyses of Bitti was OPP-08 because it had the highest number of bands (5 bands). Key words: OPP-08, Primer Selection, Vitex coffassus
PROSES KEBIJAKAN PERSUTERAAN ALAM DI SULAWESI SELATAN Andi Sadapotto
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.207

Abstract

Production of cocoon and raw silk in South Sulawesi have decreased in recent years. One of the problem is misleading policy formulation and implementation. The purpose of this studies is to know the policy of sericulture that have implemented in South Sulawesi. The method of analyses are discourse analysis/narrative, actors/network, and politics/interest. The result indicated that three factors ie. narrative, actors and interests among stakeholder in sericulture development disturb the policy implementation so it wouldn’t achieve the goal. Incorrect problem formulation also disrupt the sericulture development so it didn’t increase cocoon and raw silk production in South Sulawesi. Key words: policy, process, sericulture, South Sulawesi
PERBANDINGAN KARAKTERISTIK PAPAN SEMEN DARI BATANG DAN CABANG KAYU ASAL HUTAN RAKYAT . Suhasman
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.212

Abstract

Optimum utilization of raw materials is very important to overcome the limited raw materials supply. The objective of this study was to analyze the physical and mechanical properties of cement board made of stem and branch of tree. Materials used in this study were three wood species from community forest, namely; sengon (Paraserianthes falcataria), candlenut (Aleurites moluccana), and gmelina (Gmelina arborea). The raw materials taken from stem and branch of tree were converted into particle using hammer mill. Composition of particle, water, and cement weight based were 1 : 1,25 : 2,5 for produce cement board, while density target of the boards were 0.85 g cm-3. To improve the board quality, 2.5 % CaCl2 based on cement weight was added. Mixed meterials then cold pressed during 24 hours and then conditioned for 1 month before tested. The research resuts are as follows: 1) Dimensional stability of cement board made from stem were superior compared to cement board made from branch of tree, 2) The MOR and Internal Bond of cement board have no clear different pattern between stem and branch of tree, 3) The MOE of cement board made from branch were higher compared to cement board made from stem of the three wood species. Key words: Cement board, community forest, sengon, candlenut, gmelina
PERANAN ABU SEKAM PADI UNTUK MENGURANGI POROSITAS CONBLOCK RINGAN SEKAM PADI . Bakri
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.208

Abstract

This research aimed to determine the role of rice husk ash as pozzolanic material in reducing porosity of lightweight rice husk-conblock. Rice husk ash was obtained by burning rice husk conventionally in kiln drum and subsequently followed by burning in furnace of 1400 Barnsted Thermolyne Type at temperature 600 oC for 2 hours. Sample test preparation and procedure of porosity was adopted from ASTM C 140. Rice husk ash significantly reduced the porosity at all treatment combinations of rice husk ash percentage, but the lower porosity (31 %) obtained by using rice husk ash of 20 %. Key words: rick husk, rice husk ash, lightweight conblock, porosity
PENGARUH DIAMETER DAN JUMLAH PAKU TERHADAP KEKUATAN SAMBUNGAN GESER GANDA BALOK KAYU NANGKA (Artocarpus heterophyllus) dan RASAMALA (Altingia excelsa Noronha) DENGAN PELAT BAJA Sucahyo Sadiyo; Emma Yusrina Wulandari
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.213

Abstract

The application of nail connection for part of the structural construction in Indonesia is still become the main choice. Connection type that must be counted on seriously for structural construction, are tension, shear and momen connection. Nangka wood is a type of woods that available in sawing or community woods work around Bogor. Rasamala is endemic and unique woods from West Java. Nails as connection are cheap, available and workable. This research objective is to investigate the effect of diameter and amount of nails to double shear connection strength on two type of woods. The results showed that the increase of diameter and amount of nail will rise the capacity of total allowable load per shear plane (RT) or double shear connection strength of nangka woods and rasamala-steel plate, but this phenomena is different for allowable load capacity per nail per shear plane (R) for both of that type. Design value for nangka wood based on diameter size 4,1; 5,2 and 5,5 mm are 261; 358 and 365 kg respectively, and for rasamala wood the design value is sligthly low, which is 227; 311 and 321 kg respectively. The minimum value becomes fundamental for determining design value of total allowable load per shear plane connection (RT) based on amount of nail (4-10), which is determined by multiply the value of certain type woods with amount of nails used. Key words: double shear, displacement, allowable load per nail per shear plane (R), total allowable load per shear plane (RT)
PENDAPATAN ASLI DAERAH SEKTOR KEHUTANAN PADA ERA OTONOMI DAERAH DI KABUPATEN MUNA A. Mujetahid
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.209

Abstract

This research was aimed to know contribution of forestry sector to Local Government Revenue at district of Muna in regional autonomy era. The research result is expected to contribute in evaluating and compiling Regional Budget and Expenditure Plan. The result is also intended as an evaluation of forest product restribution policy. Data were collected with purpossive sampling using observation technique/survey, interview and discussion with related stakeholders. The data was then processed, tabulated, clasified base on with research aim, and analysed descriptively. The results show that the contribution of forestry sector to Local Government Revenue to Muna district during 2000-2004 in average was 36.77% of Local Government Revenue in total. Key words: contribution, forestry sector, Local Government Revenue, regional autonomy
BIOKONVERSI BAHAN BERLIGNOSELULOSA MENJADI BIOETANOL MENGGUNAKAN Aspergillus niger DAN Saccharomyces cereviciae Muhammad Daud; Wasrin Safii; Khaswar Syamsu
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.214

Abstract

This study aims to determine the feseability of bioethanol production from lignocellulosic material by using simulataneous saccharification and fermentation (SSF) processes with Aspergillus niger dan Saccharomyces cereviciae. Three different lignocellulosic materials namely sengon wood (Paraserianthes falcataria), gmelina wood (Gmelina arborea), pinus wood and (Pinus merkusii) were pretreated using kraft process to remove lignin content. Then, pulp was treated by using SSF processes. SSF runs were performed in 500 ml fermentors using a total slurry 200 ml. The substrate and nutrient media were autoclaved (121 oC and 20 minutes). The samples diluted to 2.5 % (w v-1) of total slurry was used as substrate. The substrate was added with 10 % (v v-1) A. niger (6.5 x 107 CFU cc-1) of total slurry and then inoculated with 10 % (v v-1) yeast S. cereviciae (1.5 x 109 CFU cc-1). The SSF experiments were run for 96 hours and the data were investigated periodically every 24 hours. The results showed that total of sugar and reducing sugar tended to decrease with time of inoculation whereas ethanol concentration increase significantly. The growth of A. niger and yeast S. cereviciae tended to incease in initial inoculation and decrease by the end of inoculation. The bioethanol concentration on sengon, gmelina, and pinus were 0.53, 0.45 and 0.31 % respectively and produced yields 3.61, 4.60 and 4.16% respectively. Key words: bioethanol, simultaneous saccharification and fermentation, Aspergillus niger, Saccharomyces cereviciae
ANALISIS PERTUMBUHAN DAN HASIL TANAMAN JABON (Anthocephallus cadamba) . Wahyudi
PERENNIAL Vol. 8 No. 1 (2012)
Publisher : Forestry Faculty of Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24259/perennial.v8i1.210

Abstract

Anthocephallus cadamba was a native species and one of some commercial trees which had a good prospect to develop on the low production forest. This research was aimed to analyze growth and yield of A. cadamba plantation, including the living trees percentage, productivity, economic cutting cycle, and its profit. Parameter of data analysis used trees diameter, high and volume, mean annual increment, polynomial equation modelling and financial analysis i.e. net present value (NPV), and benefit cost ratio (BCR). The research had been conducted at research plots of A. cadamba in sub District of Mandau Talawang, Central Kalimantan Province since 1998 to 2010. Soil type in the site was ultisol former shifting cultivation and scrubs. The result of this research showed that living trees precentage at 12 years old was 57.7 %. Mean annual increment and its density were 19.05 m3 ha-1 and 641 tree ha-1 respectively. Equation modelling of jabon plantation was y = 4.7814 + 3.6028x - 0.185x2 (R2= 63.34 %). In the bank rate of 9 % year-1, the economic cutting cycle of this plantation was 13 years with net present value was IDR 72,79 million per ha. If the bank rate of 6 % and 12 % per year, then net present value at the 13 years were IDR 108.52 and IDR 48.56 million ha-1 respectively. The A. cadamba was suitable to timber estate and to increase the productivity of former shifting cultivation, scrub, and low potential forest areas. Key words: growth and yield, mean annual increment, Anthocephallus cadamba, economic cutting cycle

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