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INDONESIA
JURNAL SELULOSA
Published by Kementerian Perindustrian Republik Indonesia
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Jurnal Selulosa (JSel) is a journal that provides scientific information resources aimed at researchers and engineers in academia, research institutions, government agencies, and industries. Jurnal Selulosa publishes original research papers, review articles and case studies focused on cellulose, cellulose derivatives, pulp technology, paper technology, environment, biorefinery and other related topics. Formerly known as Berita Selulosa, and the first publication was in 1965. Since 2011, the journal renamed to Jurnal Selulosa.
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Search results for , issue "Vol 3, No 01 (2013): JURNAL SELULOSA" : 6 Documents clear
DEFENDING INDONESIA’S PULP AND PAPER INDUSTRY: A REVIEW ON CORPORATE RESPONSIBILITY COMMUNICATIONS Ligia Santosa
JURNAL SELULOSA Vol 3, No 01 (2013): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.85 KB) | DOI: 10.25269/jsel.v3i01.39

Abstract

Forest product industry of Indonesia is dominated by pulp and paper with 60% of the total output, US$ 7 billion worth of export in 2010 that translates into 4% of the nation’s export and providing livelihood for 15 million people or one sixth of the total population. The most interesting part however, is not the size or its contribution to the economy but rather its strong potential of growth. The industry has managed to keep on growing since 2001, including during global financial crises in 2008-2009. Recently however, the industry is facing additional pressures in addition to common measure imposed by governments, businesses and interest groups which even after a company has complied with regulations and contributed to the society, such  pressures have caused detrimental effects: reputation gone badly, sales dwindling and eventually reduced competitiveness. Previous research had shown that communicating corporate responsibility efforts can create value and increase competitiveness, however from 94 pulp and paper companies within the industry 21 did communicate and only 5 who actually published a report. This research aimed to investigate the value creation process which gained through communicating corporate responsibility and addressed two main research questions on how do those companies define corporate responsibility and how do they develop and communicate their corporate responsibility. Keywords: corporate responsibility, communication, pulp and paper, Indonesia  ABSTRAKIndustri hasil hutan Indonesia didominasi oleh pulp dan kertas dengan 60% dari keluaran total sebesar US$ 7 milyar dalam ekspor pada tahun 2010. Jumlah tersebut merepresentasikan 4% dari total ekspor negara dan menyediakan penghidupan bagi 15 juta orang atau seperenam dari total populasi. Namun begitu, bagian yang paling menarik bukanlah ukuran atau kontribusinya terhadap perekonomian melainkan potensi pertumbuhannya. Industri ini telah berhasil terus tumbuh sejak tahun 2001, termasuk selama krisis keuangan global pada 2008-2009. Saat ini, industri pulp dan kertas menghadapi tekanan-tekanan tambahan selain mekanisme perlindungan yang umum diberlakukan oleh pemerintah Negara tujuan ekspor, dari kalangan bisnis dan juga kelompok-kelompok kepentingan lainnya yang bahkan setelah perusahaan telah memenuhi peraturan dan memberikan kontribusi kepada masyarakat, tekanantersebut telah menyebabkan efek merugikan: reputasi menjadi buruk, penjualan berkurang dan akhirnya menurunkan daya saing. Penelitian sebelumnya telah menunjukkan bahwa upaya mengkominikasikan tanggung jawab perusahaan dapat menciptakan nilai dan meningkatkan daya saing. Dari 94 perusahaan pulp dan kertas, hanya 21 perusahaan yang melakukan berkomunikasi dan hanya 5 perusahaan yang benar-benar menerbitkannya dalam bentuk laporan. Penelitian ini bertujuan untuk mengetahui proses penciptaan nilai yang diperoleh melalui berkomunikasi tanggung jawab perusahaan melalui dua pertanyaan penelitian utama pada bagaimana perusahaan-perusahaan mendefinisikan tanggung jawab perusahaan dan bagaimana mereka mengembangkan dan mengkomunikasikan tanggung jawab perusahaan mereka.Kata kunci: tanggung jawab perusahaan, komunikasi, pulp dan kertas, Indonesia
PENGARUH PENAMBAHAN XILANASE PADA PROSES PEMUTIHAN SISTEM ELEMENTAL CHLORINE FREE (ECF) Krisna Septiningrum; Susi Sugesty
JURNAL SELULOSA Vol 3, No 01 (2013): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (601.18 KB) | DOI: 10.25269/jsel.v3i01.40

Abstract

This research aims to investigate the effect of xylanase pretreatment on elemental chlorine free (ECF) bleaching process, the quality of bleached pulp and wastewater characteristics. At first, xylanase was produced from Bacillus circulans using solid-phase fermentation and then used for pre- bleaching of Acacia mangium and commercial pulp (Kappa Number of 12-16) and then bleached with D0ED1D2 bleaching sequences. The bleached pulp obtained was tested for physical and optical properties; COD and AOX content of wastewater generated were tested as well. The results showed that the xylanase pretreatment increase the brightness, physical strength (tensile and bursting index) of Acacia mangium and commercial pulp at xylanase dose of 0.5 kg/ton. The xylanase decrease the extractive content of Acacia mangium pulp but increase it at a commercial pulp. In contrary, the dirt content of Acacia mangium pulp was increase while it was decrease at a commercial pulp. These were obtained at a dose of xylanase of 0.5 kg/ton. The addition of xylanase on prebleaching process could increase the COD value but decrease significantly the AOX content in effluent.Keywords: xylanase, Bacillus circulans, pre-bleaching, Acacia mangium, ECF  ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh perlakuan awal xilanase pada pemutihan pulp sistem elemental chlorine free (ECF), kualitas pulp putih dan pengaruhnya terhadap karakteristik air limbah yang dihasilkan. Mula-mula, xilanase diproduksi dari Bacillus circulans menggunakan fermentasi fase padat kemudian digunakan pada perlakuan awal pemutihan (pre-bleaching) pulp Acacia mangium dan pulp komersial (Bilangan Kappa 12-16). Pulp lalu diputihkan dengan urutan D0ED1D2. Pulp putih yang diperoleh diuji sifat fisik dan optiknya, sedangkan air limbah yang  diperoleh diuji kandungan COD dan AOX. Hasil penelitian menunjukkan aplikasi xilanase dapat meningkatkan derajat putih, kekuatan fisik (indeks tarik dan retak) pulp Acacia mangium dan komersial pada dosis xilanase sebesar 0,5 kg/ton. Xilanase dapat menurunkan kandungan ekstraktif pada pulp Acacia mangium namun meningkatkan kandungan ekstraktif pada pulp komersial. Hal sebaliknya terjadi pada jumlah noda pada lembaran. Jumlah noda meningkat pada pulp Acacia mangium namun menurun pada pulp komersial pada dosis xilanase 0,5 kg/ton. Penambahan xilanase pada proses pre-bleaching meningkatkan kandungan COD pada air limbah proses pemutihan yang dihasilkan namun dapat menurunkan kandungan AOXKata kunci: xilanase, Bacillus circulans, pra-pemutihan, Acacia mangium, ECF
INFLUENCE OF FUNCTIONALIZED MULTI-WALLED CARBON NANOTUBES ON FILTERABILITY AND MECHANICAL PROPERTIES OF RAYON NANOCOMPOSITE FILAMENTS Holia Onggo; Rike Yudianti; Endang Ruchiat
JURNAL SELULOSA Vol 3, No 01 (2013): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (879.116 KB) | DOI: 10.25269/jsel.v3i01.41

Abstract

Carbon nanotube-rayon composite filaments was fabricated by spinning and coagulation of the mixture of 100mL functionalized carbon nanotube dispersion (containing 0.72 g FCNT) and cellulose xanthate in NaOH solution using viscose process. In the process, CNT was functionalized using mixture of acidic solution ( H2SO4/HNO3, 3:1 v/v). Influence of functionalized (FCNT) and non-functionalized carbon nanotubes (nFCNT) on the fabrication of rayon nanocomposite filament was studied. Physical and morphological properties of the nanocomposite filaments were characterized by single filament tenacity tester, photo micrograph, scanning electron microscope (SEM) and transmission electron microscope (TEM). Filterability and mechanical properties of FCNT-rayon nanocomposite filament greatly improved by reducing clogging constant from 1689 to 153 and increasing tenacity from 2.72 to 3.01 g/denier and decreasing elongation from 57.1 to 36.5% respectively compared with those of nFCNT-rayon nanocomposite filament.Keywords: functionalized multi-walled carbon nanotubes, nanocomposite filament, mechanical properties, filterability, dispersion  ABSTRAKRayon nanocomposite filaments telah dibuat melalui proses pemilinan (spinning) dan koagulasi (coagulation) dari campuran 100 mL larutan functionalized carbon nanotube dispersion (FCNT=0,72 g), selulosa santat dalam larutan NaOH melalui proses viskosa. CNT di functionalisasi (FCNT) menggunakan campuran larutan asam (H2SO4/HNO3, 3:1 v/v). Pengaruh fungsionalisasi CNT pada pembuatan rayon nanocomposite filaments dipelajari dengan cara membandingkannya dengan CNT tanpa fungsionalisasi (nFCNT). Sifat fisik dan morfologi dari rayon-nanocomposite filaments dikarakterisasi menggunakan tenacity tester, photo micrograph, scanning electron microscope (SEM) dan transmission electron microscope (TEM). Viskosa FCNT memiliki daya saring (Kw) cukup baik yaitu 155, sedangkan viskosa nFCNT  memiliki daya saring 1689 (tidak baik). Kekuatan mekanik dari FCNT-rayon nanocomposite filaments berturut turut adalah 3,01 g/denier (tenacity), dan 36,5% (elongation), lebih baik dibandingkan dengan nFCNT-rayon nanocomposite filament: 2,72 g/denier (tenacity) dan 57,1% (elongation).Kata kunci: fungsionalisasi multi-walled carbon nanotubes, rayon-nanocomposite filament, sifat mekanik, daya saring, dispersi
THE SEPARATION OF CELLULOSE-BINDING DOMAIN FROM ENDOGLUCANASE EGL-II BY PROTEOLYSIS METHOD Rina Masriani; Taufan Hidayat; Dewi Christanti Trisulo
JURNAL SELULOSA Vol 3, No 01 (2013): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.36 KB) | DOI: 10.25269/jsel.v3i01.42

Abstract

Protein molecule of endoglucanase Egl-II is consisted of two domains, namely cellulose-binding domain (CBD) which serves in promoting the adsorption of the enzyme to the insoluble crystalline cellulose and cellulase catalytic domain which is responsible for the hydrolysis reaction. In this study, CBD of endoglucanase Egl-II was separated from the intact protein by degradation using the papain and then separation by ultrafiltration methods. The CBD resulted can be used to modify the waste paper fibers. The results of electrophoresis before degradation showed that endoglucanase Egl-II has a molecular weight about 57.5 kDa. The electrophoregram after protein degradation and separation of CBD from the endoglucanase Egl-II showed that CBD was separated from the intact protein with a molecular weight about 21 kDa. The yield of CBDs were 59.51%. It can be concluded that CBD of endoglucanase Egl-II can be separated from the intact protein.Keywords: endoglucanase Egl-II, cellulose-binding domain, papain, ultrafiltration. ABSTRAKMolekul protein dari endoglukanase Egl-II terdiri dari dua domain, yaitu cellulose-binding domain (CBD) yang berfungsi untuk mempromosikan adsorpsi enzim ke selulosa kristalin dan domain katalitik yang bertanggung jawab dalam reaksi hidrolisis. Dalam studi ini, CBD dari endoglukanase Egl-II telah dipisahkan dari protein utuhnya setelah didegradasi dengan papain. Pemisahan CBD dari campuran hasil degradasi dilakukan dengan metode ultrafiltrasi. CBD yang dihasilkan dapat digunakan untuk memodifikasi serat kertas bekas. Hasil elektroforesis sebelum degradasi menunjukkan endoglukanase Egl-II memiliki massa molekul sekitar 57,5 kDa. Dari elektroforegram setelah degradasi protein dan pemisahan CBD dari endoglukanase Egl-II memperlihatkan bahwa CBD telah terpisah dari protein utuhnya dan memiliki massa molekul sekitar 21 kDa. Rendemen CBD adalah 59,51%. CBD dari endoglukanase Egl-II dapat dipisahkan dengan metode ini.Kata kunci: endoglukanase Egl-II, cellulose-binding domain, papain, ultrafiltrasi.
STUDY ON ALTERNATIVE FUELS FOR LIME KILN IN A KRAFT PULP MILL VIA DIRECT COMBUSTION AND GASIFICATION ,, Syamsudin; Susanto, Herri
JURNAL SELULOSA Vol 3, No 01 (2013): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (667.128 KB) | DOI: 10.25269/jsel.v3i01.43

Abstract

Most common lime reburning kiln fuels are natural gas. Limiting gas and increasing its prices encourage pulp mills to find other types of energy resources such as coal and biomass. The use of those solid energy resources may be implemented through a direct solid combustion or via gasification process. Sludge about 95 kg/ton CaO available in the pulp mill. The sludge has a heating value of 14 MJ/kg (dry basis). The palm nut shell has a heating value of 21 MJ/kg. Coal, although it is belong to the category of non-renewable recources, has a heating value of 25 MJ/kg. In production rate of CaO about 380 ton/day, direct combustion of natural gas with sludge cake reduce the natural gas consumption by 20% and higher for coal and palm nut shell. The portion natural gas substitution is limited by the availability of sludge and the attainable combustion temperature. Portion of coal and palm nut shell may be more flexible in term of availability and energy. Depending on gasifying agents and reactor configuration, the gaseous product of gasification may have a heating value of 11 MJ/Nm3 (sludge cake), 18 MJ/Nm3 (palm nut shell), and 19 MJ/Nm3 (coal). In contrast to direct combustion of solid fuel, the gaseous product of gasification may be used with a less modification of the burner and has cleaner combustion. Co-combustion of gaseous fuel from sludge may reduce the natural gas consumption by 18% and  higher for gaseous fuel from coal and palm nut shell.Keywords: sludge cake, palm nut shell, coal, co-combustion, gasification, lime kiln  ABSTRAKBahan bakar lime kiln umumnya berupa gas alam. Keterbatasan cadangan dan peningkatan harga gas alam mendorong pabrik pulp memanfaatkan sumber energi alternatif seperti batubara dan biomassa. Bahan bakar ini dapat diimplementasikan melalui pembakaran langsung atau melalui proses gasifikasi. Lumpur sebanyak 95 kg/ton CaO merupakan biomassa yang tersedia di pabrik pulp. Lumpur ini memiliki nilai kalor 14 MJ/kg (basis kering). Cangkang sawit merupakan biomassa alternatif  dengan nilai kalor 21 MJ/kg. Batubara, meskipun termasuk sumber tidak-terbarukan, memiliki nilai kalor 25 MJ/kg. Pada produksi CaO sebesar 380 ton/hari, pembakaran langsung lumpur mengurangi konsumsi gas alam 20% dan lebih tinggi untuk batubara dan cangkang sawit. Penggantian gas alam ini dibatasi ketersediaan lumpur dan suhu pembakaran yang dicapai. Penggantian gas alam dengan batubara dan cangkang sawit lebih fleksibel dalam ketersediaan dan energi yang diperoleh. Tergantung medium gasifikasi dan konfigurasi reaktor, gas hasil gasifikasi dapat mencapai nilai kalor 11 MJ/Nm3 (lumpur kering), 18 MJ/Nm3 (cangkang sawit), dan 19 MJ/Nm3 (batubara). Berbeda dengan pembakaran langsung bahan bakar padat, gas hasil gasifikasi dapat digunakan dengan sedikit modifikasi burner dan hasil pembakaran yang lebih bersih. Pembakaran gas hasil gasifikasi lumpur dapat mengurangi konsumsi gas alam 18% dan lebih tinggi lagi untuk gas hasil gasifikasi batubara dan cangkang sawit.Kata kunci: lumpur, cangkang sawit, batubara, pembakaran, gasifikasi, lime kiln
THE POTENTIAL OF NANOCELLULOSE FROM Acacia mangium PULP FOR SPECIALTY PAPER MAKING Nursyamsu Bahar; Taufan Hidayat; Nina Elyani; Ike Rostika
JURNAL SELULOSA Vol 3, No 01 (2013): JURNAL SELULOSA
Publisher : Center for Pulp and Paper

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1153.964 KB) | DOI: 10.25269/jsel.v3i01.38

Abstract

The goals of this research is to use nanocellulose as an additive for reinforcing agent in papermaking for reducing the beating process and the amount of NBKP continue with applying to specialty paper. In this research, nanocellulose was created from Acacia mangium pulp in water using disc refiner and made them homogenized with ultra turrax and ultra sonic as homogenizer. Research had been conducted in three variations of particle sizes, five variations of nanocellulose concentrations and 2 two variations of pulp compositions. The nanocellulose was added to the stock of Leaf Bleach Kraft Pulp (LBKP) and Needle Bleach Kraft Pulp (NBKP) for sheet papermaking. The structure of nanocellulose was determined by XRD, SEM, TEM, and PSA. The physical property of paper was determined by TAPPI standard and SNI.. The result showed that smaller particle gave higher reinforcing effect. The addition of 2% of nanocellulose (70 nm) increased the elongation by 24% and TEA by 50% while porosity decreased by 50%. It showed that nanocellulose have great potential as reinforcing agent in papermaking. It can be used in specialty paper such as security paper which requires high strength and glassine paper, which needs low porosity to reserve its oil penetration and use for oily product packaging. Keywords: nanocellulose, Acacia mangium, reinforcing agent, specialty paper  ABSTRAKTujuan dari penelitian ini adalah menggunakan nanoselulosa sebagai additive untuk meningkatkan kekuatan pada pembuatan kertas serta mengurangi energi proses penggilingan dan penggunaan NBKP serta diaplikasikan untuk kertas khusus. Pada penelitian ini nanoselulosa dibuat dari pulp Acacia mangium dalam air menggunakan disc refiner dan di buat homogen dengan ultra turrax dan ultra sonic. Penelitian ini dilakukan dengan tiga variasi ukuran partikel, lima variasi konsentrasi nanoselulosa, dan dua variasi komposisi pulp. Nanoselulosa ditambahkan pada stok dari pulp kayudaun (LBKP) dan pulp kayujarum (NBKP) pada pembuatan lembaran kertas. Struktur nanoselulosa diuji dengan menggunakan XRD, SEM, TEM dan PSA serta kekuatan fisik kertas ditentukan dengan menggunakan standard TAPPI dan SNI. Hasil penelitian menunjukkan bahwa partikel dengan ukuran yang lebih kecil memberikan efek peningkatan kekuatan yang lebih tinggi. Penambahan 2% nanoselulosa (70 nm) meningkatkan elongation sebanyak 24% dan TEA 50% sedangkan porositas turun sebanyak 50%, Hal ini menunjukkan bahwa nanoselulosa dapat digunakan untuk pembuatan kertas khusus seperti kertas sekuritas yang memerlukan kekuatan yang tinggi dan kertas glasin yang memerlukan porositas yang rendah dan untuk menghindarkan dari penetrasi minyak dan digunakan untuk kemasan dari bahan yang berminyak.Kata kunci: nanoselulosa, Acacia mangium, reinforcing agent, kertas khusus

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