Garuda - Garba Rujukan Digital

Cell Proportion and Dimension of Sukun (Breadfruit) (Artocarpus communis FORST) Wood “A Potential Multipurpose Tree Species” Sri Nugroho Marsoem; Harry Feryanto; Hiroyuki Yamamoto
Wood Research Journal Vol 4, No 1 (2013): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2013.4.1.1-6

Sukun (Artocarpus communis FORST), also known as breadfruit, is a multipurpose tree and is mostly grown in community forest. In an effort to increase the added value of Sukun trees grown in community forest, a study on the cell proportion and dimension of the wood was conducted by using Sukun trees grown on Karangmojo Village, Bantul Regency, Yogyakarta. Samples for the study were taken from pith to bark in the north direction of the stem. Cell proportion as well as fiber dimension were then observed. The properties observed were analyzed by analysis of variance using a Completely Randomized Design. The result shows that the wood was composed of fiber of only 37.91%, while its rays, parenchyma, and vessel are of 26.60%, 23.85% and 11.61% respectively. The wood had a rather long average fiber length that is 1.65 mm and fiber diameter of 42.48 µm, lumen diameter of 37.28 µm and cell-wall thickness of 2.60 µm.

Pore Size Distribution and Microstructure of Oil Palm Shell Heat Treated at 300 C Followed by Slow or Fast Heating Treatment Joko Sulistyo; Toshimitsu Hata; Yuji Imamura; Purnomo Darmaji; Sri Nugroho Marsoem
Wood Research Journal Vol 9, No 1 (2018): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2018.9.1.15-25

Pore size distribution and microstructure development of oil palm shell heat treated at 300ºC and treated at 300ºC and recarbonization at 600ºC followed by slow- or fast heating treatment up to 700ºC were investigated by small angle X-ray scattering (SAXS), N2 gas adsorption and Raman spectroscopy. On oil palm shell heat-treated at 300ºC, slow heating treatment gave the widening micropore along with the ordering microstructure; but fast heating treatment produced charcoal with a narrow diameter of micropore with wider pore size distribution and the disordering microstructure. On oil palm shell heat treated at 300ºC and recarbonization at 600ºC, slow heating treatment contributed on the opening new micropore with ordering microstructure, but some parts of micropore showing inaccessible for N2 gas. Meanwhile, fast heating treatment with the heating rate from 75 to 250ºC/min increased BET surface area with similar pore size distribution and the disordering microstructure.

Cell Proportion and Dimension of Sukun (Breadfruit) (Artocarpus communis FORST) Wood “A Potential Multipurpose Tree Species” Sri Nugroho Marsoem; Harry Feryanto; Hiroyuki Yamamoto
Wood Research Journal Vol 4, No 1 (2013): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2013.4.1.1-6

Sukun (Artocarpus communis FORST), also known as breadfruit, is a multipurpose tree and is mostly grown in community forest. In an effort to increase the added value of Sukun trees grown in community forest, a study on the cell proportion and dimension of the wood was conducted by using Sukun trees grown on Karangmojo Village, Bantul Regency, Yogyakarta. Samples for the study were taken from pith to bark in the north direction of the stem. Cell proportion as well as fiber dimension were then observed. The properties observed were analyzed by analysis of variance using a Completely Randomized Design. The result shows that the wood was composed of fiber of only 37.91%, while its rays, parenchyma, and vessel are of 26.60%, 23.85% and 11.61% respectively. The wood had a rather long average fiber length that is 1.65 mm and fiber diameter of 42.48 µm, lumen diameter of 37.28 µm and cell-wall thickness of 2.60 µm.

Pore Size Distribution and Microstructure of Oil Palm Shell Heat Treated at 300 C Followed by Slow or Fast Heating Treatment Joko Sulistyo; Toshimitsu Hata; Yuji Imamura; Purnomo Darmaji; Sri Nugroho Marsoem
Wood Research Journal Vol 9, No 1 (2018): Wood Research Journal
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/wrj.2018.9.1.15-25

Pore size distribution and microstructure development of oil palm shell heat treated at 300ºC and treated at 300ºC and recarbonization at 600ºC followed by slow- or fast heating treatment up to 700ºC were investigated by small angle X-ray scattering (SAXS), N2 gas adsorption and Raman spectroscopy. On oil palm shell heat-treated at 300ºC, slow heating treatment gave the widening micropore along with the ordering microstructure; but fast heating treatment produced charcoal with a narrow diameter of micropore with wider pore size distribution and the disordering microstructure. On oil palm shell heat treated at 300ºC and recarbonization at 600ºC, slow heating treatment contributed on the opening new micropore with ordering microstructure, but some parts of micropore showing inaccessible for N2 gas. Meanwhile, fast heating treatment with the heating rate from 75 to 250ºC/min increased BET surface area with similar pore size distribution and the disordering microstructure.

Tinjauan Hasil-hasil Penelitian Faktor-faktor Alam yang Mempengaruhi Sifat Fisik dan Mekanik Kayu Indonesia Review of Researches on Natural Factors Affecting the Physical and Mechanical Properties of Indonesian Wood Wahyu Dwianto; Sri Nugroho Marsoem
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 6, No 2 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

This review deals with several topics concerning natural factors affecting physical and mechanical properties of wood, i.e. (1) wood species; (2) age and location of growing; (3) position of wood sample in the stem; (4) diameter; (5) humidity, moisture content, and temperature; (5) weathering and fungi; (6) forest fired; that have been done by researchers who are members of Indonesian Wood Research Society. The purposes of this review are (1) to evaluate the research results that have been done, (2) to promote the applicable and feasible utilization of research results to the users, (3) to provide information concerning previous researches that might be useful for further researches.More than 60 wood species have been reported in this review. Besides the major and minor commercial wood species; lesser known species, i.e. Balsa (Ochroma spp.), Randu (Ceiba pentandra Gaertn.), Merkubung (Macaranga sp.), Cengkeh (Eugenia aromatica L.), Afrika (Maesopsis eminii), Kisereh (Cinnamomum porrectum (Roxb) Kosterm), Kibawang (Melia excelsa Jack.), Pulai Konggo (Alstonia kongoensis Engl.), Sengon Buto (Enterolobium cyclocarpum Griserb.), Salamander (Grevillea robusta A.Cunn.), Kilemo (Litsea cubeba Pers.), Tahongai (Kleinhovia hospita Linn.), Sukun (Arthocarpus altilis), Arang (Diospyros borneensis), Berumbung (Adina minutifolia), Tisuk/Waru (Hibiscus macrophyllus), Urograndis (Eucalyptus urograndis), Kelapa (Cocos nucifera L.), Kelapa Sawit (Eleais guineensiis Jacq.), Laban (Vitex Pubescens Vahl.), Rambai (Baccaurea motleyana Muell.), Ki Sampang (Evodia latifolia DC.), Nangka (Artocarpus integra Merr.), Kalapi (Kalappia celebica), Gofasa (Vitex coffasus), Ketileng (Vitex glabrata), Cemara (Gymnostoma sp.), and Lamtoro (Leucaena glauca (Willd) Benth). have also been observed. The researches were generally done in relation to the utilization prospect of lesser known species, crops estate species, fast growing species, timber estate species, rural forest species, commercial species, for contruction/structural materials, handy-craft, musical instruments, or out-door exposures.Wood properties were interaction between specific gravity or density, moisture content, shrinkage and mechanical properties of wood. However, the values of those physical and mechanical properties in the papers could not directly compared to each other, because there were various testing standard and strength classification used. And unfortunately, researches on acoustic, thermal, electrical, creep, relaxation, and fatigue behaviour of Indonesian wood species were very rare or almost none.

PENGARUH INOKULASI JAMUR Phanerochaete chrysosporium Burds TERHADAP KANDUNGAN KIMIA KAYU RANDU (Ceiba pentandra Gaertn) Wiwin Tyas Istikowati; Sri Nugroho Marsoem
Jurnal Sains dan Terapan Kimia Vol 3, No 2 (2009)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

Jamur pelapuk putih adalah organisme pendegradasi kayu yang dapat mendekomposisi polimer-polimer kayu yaitu lignin, selulosa, dan hemiselulosa. Jamur pelapuk putih lebih menyukai lignin pada kayu daripada selulosa yang diharapkan tetap ada pada aplikasi proses biopulping. Dalam penelitian ini dilakukan inokulasi jamur Phanerochaete chrysosporium Burds pada serpih kayu randu sebagai bahan baku pembuatan pulp dan kertas. Penelitian ini dilaksanakan untuk mengetahui tingkat degradasi komponen kimia kayu randu oleh jamur Phanerochaete chrysosporium Burds. Jamur Phanerochaete chrysosporium Burds dibiakkan pada medium agar (PDA) selama 10 hari, kemudian diinokulasikan pada serpih kayu randu selama 20 ,30, dan 40 hari. Selanjutnya serpih diamati sifat kimianya. Hasil penelitian menunjukkan perlakuan jamur terhadap serpih kayu randu selama 20, 30 dan 40 hari menurunkan kadar ekstraktif, kadar lignin, kadar holoselulosa, kadar alfa selulosa, kadar pentosan dan menaikkan kelarutan dalam NaOH 1% dari kontrol. Penurunan kadar lignin tertinggi pada masa inkubasi 40 hari sebesar 12,34%. Kata kunci : Biopulping, Phanerochaete chrysosporium, Ceiba pentandra, pulp dan kertas.

Phanerochaete chrysosporium Burds INOCULATION TO IMPROVE THE PHYSICAL PROPERTIES OF KAPOK PULP Wiwin Tyas Istikowati; Sri Nugroho Marsoem
Jurnal Sains dan Terapan Kimia Vol 6, No 1 (2012)
Publisher : Program Studi Kimia, Universitas Lambung Mangkurat

White rot fungus are wood degrading organism able to decompose wood polymers; lignin, cellulose and hemicelluloses. Some species of white rot fungi decompose wood lignin over wood polysaccharides (e.g. cellulose), make it preferable for biopulping applications. A study of Phanerochaete chrysosporium Burds fungi inoculation to kapok chips was conducted to investigate the characteristics for the wood chips to be used as pulp and paper raw materials, as degradation level influences pulp characteristic. Phanerochaete chrysosporium fungi was incubated at PDA for 10 days, then inoculated to kapok chips for 20, 30, and 40 days. Fiber morphology was analyzed furthermore 16% active alkali of kraft process was conducted for 1, 1.5, and 2 hours cooking times. The results showed that range of tear strength 4.23 mNm2/g up to 6.35 mNm2/g, tensile strength 35 N m/g until 39.9 N m/g and bursting strength 1,5 kPa up to 2,01 kPa. Key words : Biopulping, Phanerochaete chrysosporium, Ceiba pentandra, pulp and paper

PENGGUNAAN Phanerochaete chrysosporium PADA PENGOLAHAN PULP BIO-SEMI-MEKANIS KAYU TERENTANG (Campnosperma auriculata Hook.f) Yeni Aprianis; Denny Irawati; Sri Nugroho Marsoem
Jurnal Penelitian Hasil Hutan Vol. 34 No. 3 (2016): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2016.34.3.231-239

Terentang wood (Campnosperma auriculata Hook.f) is relatively low in specific gravity (0.3), hence its utilization as pulp by chemi-mechanical is an alternative process. Energy consumption was reduced by applying lignin degrading fungi (Phanerochaete chrysosporium) as pretreatment in the chemi-mechanical process. This paper examines the effects of P. chrysosporium incubation periods into chemical components and energy refining consumption of terentang wood. Four percent of NaOH was used in the chemi-mechanical process, and incubation periods studied were 0 (control), 3, 4 and 5 weeks. Results showed that P. chrysosporium significantly affected the weight loss, chemical properties, and refining energy consumption of terentang wood pulping process. Wood chip weight loss was about 15.95-21.31% and alpha-cellulose raised up to 6.77%. Five weeks incubation time decreased lignin content up to 22.97% and saved the refining energy up to 22.7%.

Title

Found 8 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 8 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 8 Documents
Search