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Peronema Forestry Science Journal
Published by Universitas Sumatera Utara
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
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Articles 12 Documents
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Search results for , issue "Vol 3, No 1 (2014): Peronema Forestry Science Journal" : 12 Documents clear
PENGARUH PERLAKUAN AWAL PARTIKEL TERHADAP SERANGAN RAYAP TANAH PADA PAPAN PARTIKEL DARI LIMBAH BATANG KELAPA SAWIT (The Effect of Particle Pre-treatment of Subterranean Termite Attack on Particleboard from Oil Palm Trunks Waste) Cut Yulia Maghfirah; Tito Sucipto; Rudi Hartono; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The utilization of oil palm trunk could be used as raw material for particleboard. It was not only increased the added value, but also used as substitution of wood. The purpose of this research evaluated the resistance of particleboard from waste of oil palm trunk on subterranean termites attack. The variation of particle pretreatment were dont by soaking the particle in hot water (1,2 and 3 hours) and in cold water (24, 48 and 72 hours.) Particleboard were made from oil palm trunk using isocyanate of 7%, with size 30 x 30 x 1 cm and density target of 0,70 gr/cm3. The evaluation of the samples were done by grave yard test along 100 days for resistance of particleboard on subterranean termites. The result showed that percentages of particleboard weight loss to subterranean termites were 19,99-63,92%. Based on subterranean termites attack, the particleboard made from oil palm trunk was classified as moderate to very destroy.Keywords: oil palm trunk, isocyanat, particle board, subterranean termites
Variation of Particle Pretreatment of Subterranean Termite Attack on Particle Board From Oil Palm Trunk Waste with Phenol Formaldehyde Adhesive Guido Simbolon; Rudi Hartono; Tito Sucipto; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

These research were to known the particle pretreatment on the durability properties of particleboard on termites attack. The variation of particle pretreatment in this research were done by soaking the particle in hot water (1,2 and 3 hours) and cold water (24, 48 and 72 hours). The particle board was made from oil palm trunk using of phenol formaldehyde adhesive with size 30 cm x 30 cm x 1 cm and density target of 0.7 g/cm3. Particle board will be test by grave yard test along 100 days for durability from termites attack and will be compared by Indonesia National Standard (SNI) 01-7202-2006. The result showed that the weight loss of particle board values were 38.63-88.11%. Based on termites attack level, it was classified as very low durability.Keywords : oil palm trunk, phenol formaldehyde adhesive, particle board, subterranean termite.
The variation of Temperature and Pressing Time on Particle Board Quality from Waste Oil Palm Trunk Using Phenol Formaldehyde Adhesive Syahroni Hasan Siregar; Rudi Hartono; Tito Sucipto; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The waste of oil palm trunks could be used as raw material for particle boards. The purpose of these studies were to known the physical, mechanical properties and to know durability of particleboard on termites attack. The variation of treatment were temperature (160, 170 and 180 °C) and pressing time (5, 7, 8 and 11 minutes). Particleboards were made from waste of oil palm trunk using phenol formaldehyde of 8 % with size 30 cm x 30 cm x 1 cm and density target of 0.70 gr/cm3. Particleboard were tested physical and mechanical properties and will be compared by SNI 03-2105-2006. Also, it will be tested by grave yard test along 100 days for durability from termites attack.Result showed that density, moisture content, water absorption, thickness swelling, MOE, MOR and Internal bond were 0.65 -0.77 g/cm³, 4.89-7.76 %, 57.36-71.53 %, 7.03-13.28 %, 10.595 -19.258 kg/cm², 57.67 -135.55 kg/cm², 1.67-3.81 kg/cm², respectively. All of density, moisture content and internal bond fulfilled standard. The other hand all of MOE didn’t fulfilled the standard. While thickness swelling and MOR only several which fulfilled the standard. Weight loss particleboard from subterranean termites were 32.33-87.45 %. Particleboard durability was classified as very bad. The best treatment of particleboard was attained by pressing temperature of 160°C for 7 minutes.Key words: oil palm trunk, particleboard, temperature and pressing time, phenol formaldehida
Inventory and Utilization Aren (A. pinnata) by Forest Communities Widely (Study Case: Sihombu Village, Tarabintang District, Humbang Hasundutan Regency) Rionaldo Damanik; Irawati Azhar; Riswan Riswan
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Aren (A. pinnata) are included in the arecaceae (areca nut) and are included in the inclosed seed plants (angiospermae). Aren is a forest plant that has many benefits but is not yet used by forest communities widely. The purpose of this study has to elevate the potential, distribution and utilization of aren. This research was using compartment sampling with compartment strip technique. The result showed that optimal growth of aren in elevate 550-560 mdpl and the utilization of aren such as, sugar palm juice, palm wine, palm fiber, leaf adnd steam. The sugar processing plants by the human in this area is steal simple and production potential processing has not been abel to be treated optimally.Keywords: Aren, potential, utilization, production.
Variation of Particle Pretreatment on Termites Attack of Particleboard Made from Waste Oil Palm Trunks using Urea Formaldehida Resin Kaya Muda Lubis; Rudi Hartono; Tito Sucipto; Apri Heri Iswanto
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (305.02 KB)

Abstract

The waste of oil palm trunk could be used as alternative raw material for particleboard. The purpose of these studies were to evaluate durability of particleboard on termites attack. Particle pretreatment were done by hot water soaking (1 hour, 2 hours, 3 hours) and cold water soaking (24 hours, 48 hours, 72 hours). Particle board were made from waste of oil pulm trunk using urea formaldehida of 10% with size 30 cm x 30 cm x 1 cm, density target 0.75 g/cm3, pressure 25 kg/cm2 at 130ºC of temperature for 10 minutes. Particleboard was tested for durability of particleboard on termites attack by grave yard test along 100 days and wil be compared by SNI 01-7207-2006.The percentages of particleboard weight loss were 41.05-60.29%. Based on the termites attack rate, all of particleboards were classified as very bad durability. The best of particleboards durability was the board with cold water soaking for 72 hours treatment with 41.05% of particleboard weight loss.Keywords : oil palm trunk, urea formaldehida, particle pretreatment, particle board, subterranean termites.
Increasing Oleoresin (Pinus merkusii) Productivity with Physical Treatment Modification and Time of Tapping in Riil Method Wilna Fikriyah Hasibuan; Ridwanti batubara; Muhdi Muhdi
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

Pinus merkusii is one of endemic in North Sumatera, especially in the north. Pine has a very impotant role, whereas beside as a pioneer plant, pine also produces resin which if we process it more, it will has higher economic value. The purpose of this research were to knowing the influence between time of tapping with physical treatment modification in riil method of oleoresin productivity. In this research, the physical treatment used were by hitting (without hitting, 10,20, and 30 times hitting). The result of this research showed that 10 times hitting were different than 20 and 30 times hitting, while 20 and 30 times hitting were not different. The highest amount of oleoresin productivity were from 10 times hitting (1,428 kg/tree/year) which showed that physical treatment of 10 times hitting were better than 20 and 30 times hitting. The times of tapping 3 days at once was very different with the times of tapping 5 and 7 days at once, while the times of tapping 5 and 7 days at once were not different. The times of tapping 3 days at once has a significant influence and it was the best times of tapping for increasing oleoresin productivity.Key words : Pinus merkusii , resin, riil method, times of tapping
(The Application of H2SO4 As Stimulant To Increase The Productivity of Oleoresin (Pinus merkusii Jungh et de Vriese) With Riil Method Ayu Rahayu Effendi Surbakti; Ridwanti Batubara; Muhdi Muhdi
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The Production of oleoresin is affected by the application of stimulant and time of tapping. The purpose of this research were to know the effect of H2SO4 stimulant and the time of tapping to P. merkusii and to know the H2SO4 concentration and the best time of pine tapping that gave the best of tapping. This research were carried at working area of PT. Inhutani IV, Siborong-borong in Mei – June 2013 using factorial randomized block design with two factors, i.e. the concentration of stimulant (0%, 10%, 20% and 30%) and time of tapping (3, 5 and 7 days at once). Parameter measured were production of oleoresin (gram). Result of this research showed that the application of H2SO4 stimulant on the tapping of pine trees increase considerably to oleoresin. The application of H2SO4 resulted in more than 2 – 4 times the yield of oleoresin from tree without stimulant. The concentration of H2SO4 (30%) and the time of tapping in 3 days can gave the best product of oleoresin.Key word : P. merkusii, resin, stimulant, tapping.
Weather Effect On Discoloration of Fiber Plastic Composite Made of Corrugated Paper and Polyethylene with The Addition Of Maleic Anhydride and Benzoyl Peroxide Vicky Fadliansah Sihombing; Luthfi Hakim; Ridwanti Batubara
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The use of fiberplastic composite (FPC) for exterior purposes raises issues related to durability FPC against weather influences. Discoloration is one problem that often occurs in the products that are used for the purpose of exterior use. Discoloration of the product exposed to weather effects will reduce the aesthetic appearance of a product.The main objective of this research was to evaluate discoloration of FPC after exposed to weather for 6 months.In this study, there were 6 treatments consisting of two factors, namely the ratio of FPC materials (corrugated paper fibers and polyethylene) which consists of 3 levels ie 50:50, 60:40 and 70:30 and the additional factor of maleic anhydride (MAH), which consists of two levels, namely 5% and 7%.The results showed that after exposure to the weather for 6 months, the discoloration on the FPC are initially black to white dull. At the70:30 ratio with the addition of 7% MAH the discoloration are not too drastic than in the comparison of 50:50 and 60:40. Discoloration on the surface of the FPC caused by photodegradation by UV light. Degradation mainly occurred in the lignin component and cause discoloration. The addition of MAH cannot reduce discoloration of the FPC after exposure for 6 months.Keywords : fiber plastic composite, discoloration, weathering test.
The Inhibition Test of Extract Paku Pohon (Cyathea contaminans (Hook.) Copel.) To Fungi Microsporum gypseum In Vitro Citra Dewi Turnip; Ridwanti Batubara; Herawaty Ginting
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

This study aims to determine the effect of inhibition extract paku pohon (Cyathea contaminans (Hook.) Copel.) to fungi Microsporum gypseum, the fungus causes skin disease, horn or keratin-eating substances, as well as damage the nails and hair. The method of the study was in vitro test by paper disc method. The extracts were diluted into concentrations of 500 mg / ml, 400 mg / ml; 300mg/ml; 200mg/ml; 100mg/ml, until 10 mg / ml for M. gypseum tests respectively. Each petri dish added 0.1 ml of inoculum was added 15 ml of Potato Dextrose Agar media that has been thawed sterile and wait until the temperature reaches 4500C, respectively disc subsequent paper that has been soaked in various concentrations of extract for 15 minutes, put on the media , incubated at a temperature of 20-250 ° C for 48 hours. Inhibitory regions surrounding diameter of disc was measured using calipers paper. Tests carried out 3 times. Performed using DMSO4 blank. The results showed a significant effect on paku pohon extract the inhibition of fungal M. gypseum which starts at a concentration of 400 mg / ml and the smallest inhibition at concentrations of 300 mg extract / ml. The smallest concentration is the value of Minimum Inhibitory Concentration (MIC).Keywords: Cyathea contaminans (Hook.) Copel., extract Paku pohon, M. gypseum.
The Durability of Fiber–Plastic Composite with Maleic Anhydride (MAH) as Compabilitizer and Benzoyl Peroxide (BPO) as Initiator toward Termits Attack Pandapotan Christian Purba; Luthfi Hakim; Ridwanti Batubara
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

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Abstract

The use of plastic fiber composite (FPC) for exterior purposes as one alternative to solid wood has a variety of power requirement one of which is resistant to termites. This study aimed to test the durability of fiber composite plastic derived from recycled corrugated old paper fibers and polypropylene (PP) with the addition of maleic andhirida (MAH) as compabilitizer and benzoyl peroxide (BPO) to termite attack. This research used Completely Randomized Design (CRD) factorial, there are two factors: comparison of corrugated old paper fibers and polypropylene (PP), which consists of 50:50, 60:40 and 70:30 and additive factors maleit anhirida (MAH) 1% and 2% and the results were compared with JIS A 5905-2003 S20 hardboard and JIS A 5908-2003 particleboards type 13 for physical properties and SNI 01 7202-2006 to test the grave yard test termites. The results showed after trials testing the grave for 100 days, the physical properties of the fiber composite plastic does not entirely meet the testing standards JIS A 5905-2003 S20 hardboard and JIS A 5908-2003 particleboards type 13. To test resistance to termite attack, some fiber plastic composite that meets the ISO standard FPC 50:50 01 7202-2006 1% MAH, 1% MAH 60:40, 60:40 and 70:30 2% MAH while the remaining 2% are outside the standard. The Patterns of termite attack on FPC 50:50 70:30 2% and 1% MAH MAH resembles a circular pattern.Keywords : corrugated old paper fiber, polypropilene, fiber plastic composite, durability against termite attack.

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