Ridwanti Batubara - Academia.edu (original) (raw)

Papers by Ridwanti Batubara

Research paper thumbnail of ANALISIS POTENSI KETERSEDIAAN DAN PEMASARAN BAMBU BELANGKE (Gigantochloa pruriens Widjaja) DI HUTAN RAKYAT BAMBU DESA TIMBANG LAWAN KECAMATAN BAHOROK KABUPATEN LANGKAT DALAM INDUSTRI DUPA BAMBU

Peronema Forestry Science Journal, Sep 4, 2013

In the rural communities living in Indonesia, bamboo plays a very important contribution, but unf... more In the rural communities living in Indonesia, bamboo plays a very important contribution, but unfortunately the awareness of the importance of bamboo is still low for rural communities in general. This study aims to determine the potential availability and marketing of bamboo Belangke (Gigantochloa Widjaja pruriens) at Timbang Lawan Village, Sub-District of Bahorok, District of Langkat as raw material for bamboo incense. The method used in this study is an inventory and interview the owners of bamboo forests and bamboo incense marketing actors. The results of this study indicate that there are approximately 8.16 ha of bamboo forest species Belangke (G. pruriens Widjaja), with the potential rods that can be used for making incense sticks bamboo is 33,020 bamboos. Marketing system in the production of bamboo incense industries include bamboo processing, first seller, processors, seller, and consumers, with their respective profit margins ranging from bamboo to the merchant processor was 43%, 22.7%, 49%, and 58% . While the yield resulting from any processed bamboo rod with a size of 43 cm, 48 cm, 60 cm, and 65 cm were 90. 34%, 86.50%, 84.92%, and 85.86%.

Research paper thumbnail of Weather Effect On Discoloration of Fiber Plastic Composite Made of Corrugated Paper and Polyethylene with The Addition Of Maleic Anhydride and Benzoyl Peroxide

Peronema Forestry Science Journal, Jul 21, 2014

The use of fiberplastic composite (FPC) for exterior purposes raises issues related to durability... more 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.

Research paper thumbnail of Keanekaragaman Vegetasi Tanaman Obat di Hutan Pendidikan Universitas Sumatera Utara Kawasan Taman Hutan Raya Tongkoh Kabupaten Karo Sumatera Utara

Peronema Forestry Science Journal, Jun 15, 2013

Research paper thumbnail of (The Application of H2SO4 As Stimulant To Increase The Productivity of Oleoresin (Pinus merkusii Jungh et de Vriese) With Riil Method

Peronema Forestry Science Journal, Jul 21, 2014

The Production of oleoresin is affected by the application of stimulant and time of tapping. The ... more 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.

Research paper thumbnail of PEMANFAATAN DAN PEMASARAN ROTAN OLEH MASYARAKAT KABUPATEN SAMOSIR (Studi Kasus di Desa Huta Galung, Kecamatan Harian, Kabupaten Samosir)

Peronema Forestry Science Journal, Jun 15, 2013

Research paper thumbnail of The Inhibition Test of Extract Paku Pohon (Cyathea contaminans (Hook.) Copel.) To Fungi Microsporum gypseum In Vitro

Peronema Forestry Science Journal, Jul 21, 2014

Research paper thumbnail of The Giving Variation of Concentration Kecombrang Flowers Extract (Etlingera elatior Jack R. M. Sm) as Natural Insectiside Against Aedes spp

Peronema Forestry Science Journal, Jul 21, 2014

Research paper thumbnail of Increasing Oleoresin (Pinus merkusii) Productivity with Physical Treatment Modification and Time of Tapping in Riil Method

Peronema Forestry Science Journal, Jul 21, 2014

Pinus merkusii is one of endemic in North Sumatera, especially in the north. Pine has a very impo... more 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.

Research paper thumbnail of Durability of Modified Fiber Plactic Composite (FPC) Against Marine Borer

Peronema Forestry Science Journal, Jul 21, 2014

The Fiber plastic composite (FPC) board that made from corrugated paper fiber and plastic polypro... more The Fiber plastic composite (FPC) board that made from corrugated paper fiber and plastic polypropylene with maleic anhydride (1 % and 2 %) as compatibilizer and benxzoil peroxide (15 %) as initiator (modified). The purpose of this research were to evaluate the quality of the physical properties of modified FPC board, identification kinds of marine borer, and the durability against marine borer. The physical properties was based on JIS A 5905-2003 and JIS A 5908-2003. The durability of modified FPC board against marine borer was based on SNI 01-7207-2006. The Modified FPC board was soaking in the sea of Port Belawan, Medan for six months. The results showed the physical properties of modified FPC board were full fil the standard JIS A 5905-2003 and JIS A 5908-2003. The durability of modified FPC board against marine borer according SNI 01-7207-2006 was classified into very durable and durable. The marine organism which found on modified FPC board were 17 specieses but only 2 specieses classified as marine borers, there are Limnoria sp and Teredo sp. After the split test was known that the pattern of attacks on the modified FPC board is Martesia striata's attack patterns of pholadidae.

Research paper thumbnail of Jenis, Potensi dan Nilai Ekonomi Hasil Hutan yang Dimanfaatkan Masyarakat sekitar Tahura Bukit Barisan

Peronema Forestry Science Journal, Dec 27, 2012

TAHURA Bukit Barisan represent a forest bunch which is have direct interaction between people and... more TAHURA Bukit Barisan represent a forest bunch which is have direct interaction between people and forest. Doulu and Jaranguda Village is around Tahura area. Therefore was conducted research to know type, potency and economic value of forest product which exploited by society around TAHURA. The method that is used to determine the respondent is snowball sampling method. Based on interview on responden, type of forest product which exploited by people around TAHURA area are regen bamboo, bulak bamboo, medical plant, honey and animal . The biggest Economics value at both village is Bamboo Regen exploiting equal to Rp.1.069.256.000,00. Forest provide a major contribution to public life.

Research paper thumbnail of IDENTIFIKASI FUNGI YANG BERKEMBANG PADA BATANG SAWIT (Elaeis guineensis Jacq.) Pasca Penebangan (Identification of fungi that developed in post-harvest oil palm trunk (Elaeis guineensis Jacq.))

Peronema Forestry Science Journal, May 10, 2013

a Program Studi Kehutanan, Fakultas Pertanian, Universitas Sumatera Utara Jl. Tri Dharma Ujung No... more a Program Studi Kehutanan, Fakultas Pertanian, Universitas Sumatera Utara Jl. Tri Dharma Ujung No. 1 Kampus USU Medan 20155 (* Penulis Korespondensi, Telp./Fax. ABSTRACT The research aims to know the kinds of fungi that grow on palm trunk after logging in the process of rejuvnation of palm. The research was conducted in Kebun Percobaan Tambunan A Universitas Sumatra Utara. Fungi isolated and identified in Microbiology . The results obtained, four types of fungi found on oil palm trunks that have been process of rejuvnation, wich is taken from four palm as a sample. for each palm trunk, made a division at the base of the trunk, middle, and end of the trunk. From the results of isolation obtained the Arthrinium phaespermum, Chaetomium brasiliense, Penicillium simplicissimum and Ulocladium botrytis as a result of identification from the sample. The type of fungi that most identified from the palm trunk is a type of fungi Arthrinium phaeospermum

Research paper thumbnail of Penilaian Ekonomi Sampah Kertas DI Kota Medan

Peronema Forestry Science Journal, Dec 27, 2012

Masalah sampah di setiap daerah merupakan masalah yang tidak asing lagi, khususnya pada daerah pe... more Masalah sampah di setiap daerah merupakan masalah yang tidak asing lagi, khususnya pada daerah perkotaan seperti di kota Medan. Kota Medan adalah ibu kota provinsi Sumatera Utara dan merupakan kota terbesar di Pulau Sumatera. Jenis sampah yang dihasilkan dari tingkat rumah tangga hingga tingkat industri berbeda yaitu jenis organik dan anorganik. Sampah organik adalah sisa yang dihasilkan dari bahan-bahan organik (makhluk hidup) dan dapat terurai secara alami sedangkan sampah anorganik adalah sisa yang dihasilkan dari sampah sintetik yang tidak dapat terurai secara alami dan harus ada perlakuan untuk mengolahnya. Salah satu sampah yang dihasilkan dari bahan organik adalah sampah kertas. Sampah kertas terbuat dari bahan selulosa yang dikandung oleh kayu.

Research paper thumbnail of PERUBAHAN KIMIA KAYU PADA GUBAL GAHARU (Aquilaria malaccensis Lamk.)HASIL REKAYASA) (Wood Chemical Changes In Gubal Agarwood (Aquilaria malaccensis Lamk.) Engineered)

Peronema Forestry Science Journal, May 10, 2013

Research paper thumbnail of ANALISIS PEMASARAN KEMENYAN (Styrax spp.) (Studi Kasus : Kec. Pollung, Kab. Humbang Hasundutan)

Peronema Forestry Science Journal, Dec 27, 2012

Hasil hutan bukan kayu seperti getah kemenyan yang disadap dari pohon kemenyan. Daerah yang memil... more Hasil hutan bukan kayu seperti getah kemenyan yang disadap dari pohon kemenyan. Daerah yang memiliki potensi kemenyan di Sumatera Utara seperti Kecamatan Pollung, Kabupaten Humbang Hasundutan. Kabupaten ini kaya dengan kemenyan dengan luas lahan 5.235 Ha menghasilkan 1.278 ton per tahun. Luas lahan kemenyan mencapai 23,16% dari luas dataran Kecamatan Pollung(BPS,2003). Minat masyarakat Kecamatan Pollung, Kabupaten Humbang Hasundutan untuk menanam kemenyan semakin meningkat. Berdasarkan penelitian Panusunan (2005), di salah satu desa yang memanfaatkan hutan rakyat kemenyan, yaitu Desa Simasom Kecamatan Parlilitan Kabupaten Humbang Hasundutan, hutan rakyat kemenyan memberikan peranan penting, yaitu sebesar 78,59 % dalam pendapatan rumah tangga.

Research paper thumbnail of The Durability of Fiber–Plastic Composite with Maleic Anhydride (MAH) as Compabilitizer and Benzoyl Peroxide (BPO) as Initiator toward Termits Attack

Peronema Forestry Science Journal, Jul 21, 2014

The use of plastic fiber composite (FPC) for exterior purposes as one alternative to solid wood h... more 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.

Research paper thumbnail of Pengawetan Kayu Karet (Hevea braziliensis MUELL Arg) Menggunakan Asam Borat (H3BO3) Dengan Metode Pengawetan Rendaman Panas Dingin Preserving of Rubber Wood (Hevea braziliensis MUELL Arg) Using Boric Acid (H3BO3) With Cold and Hot Soaking Preservation

Peronema Forestry Science Journal, Mar 16, 2013

Research paper thumbnail of ANALISIS POTENSI KETERSEDIAAN DAN PEMASARAN BAMBU BELANGKE (Gigantochloa pruriens Widjaja) DI HUTAN RAKYAT BAMBU DESA TIMBANG LAWAN KECAMATAN BAHOROK KABUPATEN LANGKAT DALAM INDUSTRI DUPA BAMBU

Peronema Forestry Science Journal, Sep 4, 2013

In the rural communities living in Indonesia, bamboo plays a very important contribution, but unf... more In the rural communities living in Indonesia, bamboo plays a very important contribution, but unfortunately the awareness of the importance of bamboo is still low for rural communities in general. This study aims to determine the potential availability and marketing of bamboo Belangke (Gigantochloa Widjaja pruriens) at Timbang Lawan Village, Sub-District of Bahorok, District of Langkat as raw material for bamboo incense. The method used in this study is an inventory and interview the owners of bamboo forests and bamboo incense marketing actors. The results of this study indicate that there are approximately 8.16 ha of bamboo forest species Belangke (G. pruriens Widjaja), with the potential rods that can be used for making incense sticks bamboo is 33,020 bamboos. Marketing system in the production of bamboo incense industries include bamboo processing, first seller, processors, seller, and consumers, with their respective profit margins ranging from bamboo to the merchant processor was 43%, 22.7%, 49%, and 58% . While the yield resulting from any processed bamboo rod with a size of 43 cm, 48 cm, 60 cm, and 65 cm were 90. 34%, 86.50%, 84.92%, and 85.86%.

Research paper thumbnail of Weather Effect On Discoloration of Fiber Plastic Composite Made of Corrugated Paper and Polyethylene with The Addition Of Maleic Anhydride and Benzoyl Peroxide

Peronema Forestry Science Journal, Jul 21, 2014

The use of fiberplastic composite (FPC) for exterior purposes raises issues related to durability... more 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.

Research paper thumbnail of Keanekaragaman Vegetasi Tanaman Obat di Hutan Pendidikan Universitas Sumatera Utara Kawasan Taman Hutan Raya Tongkoh Kabupaten Karo Sumatera Utara

Peronema Forestry Science Journal, Jun 15, 2013

Research paper thumbnail of (The Application of H2SO4 As Stimulant To Increase The Productivity of Oleoresin (Pinus merkusii Jungh et de Vriese) With Riil Method

Peronema Forestry Science Journal, Jul 21, 2014

The Production of oleoresin is affected by the application of stimulant and time of tapping. The ... more 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.

Research paper thumbnail of PEMANFAATAN DAN PEMASARAN ROTAN OLEH MASYARAKAT KABUPATEN SAMOSIR (Studi Kasus di Desa Huta Galung, Kecamatan Harian, Kabupaten Samosir)

Peronema Forestry Science Journal, Jun 15, 2013

Research paper thumbnail of The Inhibition Test of Extract Paku Pohon (Cyathea contaminans (Hook.) Copel.) To Fungi Microsporum gypseum In Vitro

Peronema Forestry Science Journal, Jul 21, 2014

Research paper thumbnail of The Giving Variation of Concentration Kecombrang Flowers Extract (Etlingera elatior Jack R. M. Sm) as Natural Insectiside Against Aedes spp

Peronema Forestry Science Journal, Jul 21, 2014

Research paper thumbnail of Increasing Oleoresin (Pinus merkusii) Productivity with Physical Treatment Modification and Time of Tapping in Riil Method

Peronema Forestry Science Journal, Jul 21, 2014

Pinus merkusii is one of endemic in North Sumatera, especially in the north. Pine has a very impo... more 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.

Research paper thumbnail of Durability of Modified Fiber Plactic Composite (FPC) Against Marine Borer

Peronema Forestry Science Journal, Jul 21, 2014

The Fiber plastic composite (FPC) board that made from corrugated paper fiber and plastic polypro... more The Fiber plastic composite (FPC) board that made from corrugated paper fiber and plastic polypropylene with maleic anhydride (1 % and 2 %) as compatibilizer and benxzoil peroxide (15 %) as initiator (modified). The purpose of this research were to evaluate the quality of the physical properties of modified FPC board, identification kinds of marine borer, and the durability against marine borer. The physical properties was based on JIS A 5905-2003 and JIS A 5908-2003. The durability of modified FPC board against marine borer was based on SNI 01-7207-2006. The Modified FPC board was soaking in the sea of Port Belawan, Medan for six months. The results showed the physical properties of modified FPC board were full fil the standard JIS A 5905-2003 and JIS A 5908-2003. The durability of modified FPC board against marine borer according SNI 01-7207-2006 was classified into very durable and durable. The marine organism which found on modified FPC board were 17 specieses but only 2 specieses classified as marine borers, there are Limnoria sp and Teredo sp. After the split test was known that the pattern of attacks on the modified FPC board is Martesia striata's attack patterns of pholadidae.

Research paper thumbnail of Jenis, Potensi dan Nilai Ekonomi Hasil Hutan yang Dimanfaatkan Masyarakat sekitar Tahura Bukit Barisan

Peronema Forestry Science Journal, Dec 27, 2012

TAHURA Bukit Barisan represent a forest bunch which is have direct interaction between people and... more TAHURA Bukit Barisan represent a forest bunch which is have direct interaction between people and forest. Doulu and Jaranguda Village is around Tahura area. Therefore was conducted research to know type, potency and economic value of forest product which exploited by society around TAHURA. The method that is used to determine the respondent is snowball sampling method. Based on interview on responden, type of forest product which exploited by people around TAHURA area are regen bamboo, bulak bamboo, medical plant, honey and animal . The biggest Economics value at both village is Bamboo Regen exploiting equal to Rp.1.069.256.000,00. Forest provide a major contribution to public life.

Research paper thumbnail of IDENTIFIKASI FUNGI YANG BERKEMBANG PADA BATANG SAWIT (Elaeis guineensis Jacq.) Pasca Penebangan (Identification of fungi that developed in post-harvest oil palm trunk (Elaeis guineensis Jacq.))

Peronema Forestry Science Journal, May 10, 2013

a Program Studi Kehutanan, Fakultas Pertanian, Universitas Sumatera Utara Jl. Tri Dharma Ujung No... more a Program Studi Kehutanan, Fakultas Pertanian, Universitas Sumatera Utara Jl. Tri Dharma Ujung No. 1 Kampus USU Medan 20155 (* Penulis Korespondensi, Telp./Fax. ABSTRACT The research aims to know the kinds of fungi that grow on palm trunk after logging in the process of rejuvnation of palm. The research was conducted in Kebun Percobaan Tambunan A Universitas Sumatra Utara. Fungi isolated and identified in Microbiology . The results obtained, four types of fungi found on oil palm trunks that have been process of rejuvnation, wich is taken from four palm as a sample. for each palm trunk, made a division at the base of the trunk, middle, and end of the trunk. From the results of isolation obtained the Arthrinium phaespermum, Chaetomium brasiliense, Penicillium simplicissimum and Ulocladium botrytis as a result of identification from the sample. The type of fungi that most identified from the palm trunk is a type of fungi Arthrinium phaeospermum

Research paper thumbnail of Penilaian Ekonomi Sampah Kertas DI Kota Medan

Peronema Forestry Science Journal, Dec 27, 2012

Masalah sampah di setiap daerah merupakan masalah yang tidak asing lagi, khususnya pada daerah pe... more Masalah sampah di setiap daerah merupakan masalah yang tidak asing lagi, khususnya pada daerah perkotaan seperti di kota Medan. Kota Medan adalah ibu kota provinsi Sumatera Utara dan merupakan kota terbesar di Pulau Sumatera. Jenis sampah yang dihasilkan dari tingkat rumah tangga hingga tingkat industri berbeda yaitu jenis organik dan anorganik. Sampah organik adalah sisa yang dihasilkan dari bahan-bahan organik (makhluk hidup) dan dapat terurai secara alami sedangkan sampah anorganik adalah sisa yang dihasilkan dari sampah sintetik yang tidak dapat terurai secara alami dan harus ada perlakuan untuk mengolahnya. Salah satu sampah yang dihasilkan dari bahan organik adalah sampah kertas. Sampah kertas terbuat dari bahan selulosa yang dikandung oleh kayu.

Research paper thumbnail of PERUBAHAN KIMIA KAYU PADA GUBAL GAHARU (Aquilaria malaccensis Lamk.)HASIL REKAYASA) (Wood Chemical Changes In Gubal Agarwood (Aquilaria malaccensis Lamk.) Engineered)

Peronema Forestry Science Journal, May 10, 2013

Research paper thumbnail of ANALISIS PEMASARAN KEMENYAN (Styrax spp.) (Studi Kasus : Kec. Pollung, Kab. Humbang Hasundutan)

Peronema Forestry Science Journal, Dec 27, 2012

Hasil hutan bukan kayu seperti getah kemenyan yang disadap dari pohon kemenyan. Daerah yang memil... more Hasil hutan bukan kayu seperti getah kemenyan yang disadap dari pohon kemenyan. Daerah yang memiliki potensi kemenyan di Sumatera Utara seperti Kecamatan Pollung, Kabupaten Humbang Hasundutan. Kabupaten ini kaya dengan kemenyan dengan luas lahan 5.235 Ha menghasilkan 1.278 ton per tahun. Luas lahan kemenyan mencapai 23,16% dari luas dataran Kecamatan Pollung(BPS,2003). Minat masyarakat Kecamatan Pollung, Kabupaten Humbang Hasundutan untuk menanam kemenyan semakin meningkat. Berdasarkan penelitian Panusunan (2005), di salah satu desa yang memanfaatkan hutan rakyat kemenyan, yaitu Desa Simasom Kecamatan Parlilitan Kabupaten Humbang Hasundutan, hutan rakyat kemenyan memberikan peranan penting, yaitu sebesar 78,59 % dalam pendapatan rumah tangga.

Research paper thumbnail of The Durability of Fiber–Plastic Composite with Maleic Anhydride (MAH) as Compabilitizer and Benzoyl Peroxide (BPO) as Initiator toward Termits Attack

Peronema Forestry Science Journal, Jul 21, 2014

The use of plastic fiber composite (FPC) for exterior purposes as one alternative to solid wood h... more 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.

Research paper thumbnail of Pengawetan Kayu Karet (Hevea braziliensis MUELL Arg) Menggunakan Asam Borat (H3BO3) Dengan Metode Pengawetan Rendaman Panas Dingin Preserving of Rubber Wood (Hevea braziliensis MUELL Arg) Using Boric Acid (H3BO3) With Cold and Hot Soaking Preservation

Peronema Forestry Science Journal, Mar 16, 2013