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All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Jurnal Ilmu Pertanian Indonesia Jurnal Teknologi Industri Pertanian Jurnal Ilmu dan Teknologi Hasil Hutan Jurnal Keteknikan Pertanian Jurnal Ilmu Ternak dan Veteriner Majalah Ilmiah Biologi BIOSFERA: A Scientific Journal Jurnal Ilmu dan Teknologi Kayu Tropis Prosiding University Research Colloquium

Dodi Nandika

Departemen Hasil Hutan, Fakultas Kehutanan, Institut Pertanian Bogor, Kampus IPB Darmaga, Bogor 16680

Author-ID : 328064

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Veterinary

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Keandalan Papan Lapis dari Kayu Damar (Agathis loranthifolia Salisb.) Terpadatkan sebagai Pelat Buhul pada Arsitektur Konstruksi Atap Kayu The Strength of Densified Agathis (Agathis loranthifolia Salisb.) Plyboard as Gusset in Wood Roof Construction Rilatupa, James; Surjokusumo, Surjono; Nandika, Dodi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 2, No 1 (2004): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Jurnal Ilmu dan Teknologi Kayu Tropis

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The aim of this research is to know the densified agathis plyboard characteristics and reliability is used for semi isotropic gusset in wood roof construction, and also to look for suitable models of its connectors for roof construction. The material use for this research is agathis board with dimension of 36 cm (L) x 12 cm (T) x 2 cm (R). This board has been densified until it reached 1 cm in thickness (R). Glue used for this research is epoxy with the trade name Eurepox-710 (resin) and mixed with Euredur-140 (hardener). The bolt used for the testing of embedded strength is bolt St.37 with diameter of 11.12 mm.The result showed that densification could increase physical nature and mechanical strength. The physical nature and mechanical strength also indicated that densified agathis board could be used as gusset in wood roof construction. Results of bolt embedded strength and its ANOVA showed that the gusset of densified agathis plyboard will be reliable for each connection angles, and indicated that the Hankinson theory could not be implemented to forecast the bolt embedded strength for another connection angles. Based on questioners model of the gusset will revealed which is in accordance with the roof construction as issued for the second drawing of the gusset for each connection type. This model has been considered to posses aesthetical and harmonically features wood roof construction of a building

Pengaruh Kondisi Permukaan terhadap Daya Lekat Lapisan Pelindung Andi T. Lestari; I. Wayan Darmawan; Dodi Nandika
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 1 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Penelitian ini bertujuan untuk menentukan pengaruh kondisi permukaan kayu jati Perhutani, pinus dan jati rakyat (penampang radial dan tangensial) terhadap daya lekat bahan lapisan pelindung permukaan. Contoh uji diampelas dan diukur tingkat kekasarannya (Ra) menggunakan roughness tester TR200. Water repellent (WR), bahan pengawet, cat dan kombinasinya dilaburkan pada permukaan kayu. Pengujian keterbasahan dilakukan dengan pengukuran sudut kontak (contact angle) antara cairan dan permukaan contoh uji. Sudut kontak tersebut diukur menggunakan Motic Images Plus (MIP) versi 2.0. Nilai sudut kontak statis ditentukan menggunakan program PROC NLIN dari SAS. Nilai Ra bervariasi antara 2,51-5,80 m. Penampang radial memiliki nilai Ra yang lebih kecil dari penampang tangensial. Jati rakyat dan pinus menghasilkan nilai Ra yang lebih tinggi dibandingkan dengan jati Perhutani. WR menghasilkan sifat keterbasahan yang rendah dengan sudut kontak statisnya mencapai 134o. Sifat keterbasahan bahan pengawet tinggi dengan sudut kontak statis 8,92o. Kombinasi antara cat dan WR, serta cat dan bahan pengawet menghasilkan daya lekat yang paling kuat dibandingkan dengan kombinasi antara cat, bahan pengawet, dan WR. Daya lekat lapisan pelindung permukaan kayu jati rakyat relatif sama dengan kayu pinus, namun daya lekat keduanya lebih baik dibandingkan dengan jati Perhutani.

Biodegradasi Substrat Gergajian Kayu Sengon oleh Jamur Kelompok Pleurotus Asal Bogor Biodegradation of Sengon-wood Sawdust Substrate by Pleurotus Group Fungi from Bogor Elis Nina Herliyana; Dodi Nandika; Achmad Lisdar; I. Sudirman; Arief B. Witarto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 6, No 2 (2008): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

White-rot fungi has been started to be developed for enhancing the mushroom based industry in many countries including in environmentally sound of bio-bleaching and bio-pulping technological process. Six isolates of wild Pleurotus group were isolated from various location in Bogor, namely Pleurotus EAB7, EB24, EB14-2, EB6, EA4 and EB9 of which were studied of their ligninolytic character. P. ostreatus HO was used as standard comparison.The ligninolytic character of these six fungi isolates was measured after inoculation into Sengon (Paraserianthes falcataria) wood sawdust substrate inside plastic bag with substrate weight of about 400 gram; other additional substances were paddy scalp, gypsum, calcium and water. Observation was done on Sengon wood sawdust substrate since vegetative phase until reproductive phase. Samples were opened, destructed with Hammer Mill, and then dried with oven on temperature of 40oC in 4 ~ 6 days until water content reach 15%, and weigh about 30 gram for analyses. Analyses were done by measuring water soluble extractive substance (TAPPI T 207 om-88 Standard), NaOH (sodium hydroxide) 1% soluble extractive substance (TAPPI T 212 om-88 Standard), alkohol-benzena soluble extractive substance (TAPPI T 204 om-88 Standard), lignin content (TAPPI T 13 os-54 Standard), holocellulose content with method browning (TAPPI T 211 m Standard), and cellulose content with method Cross and Bevan (Meulenhoff et al. 1977; TAPPI 1996).Having applied of each wild Pleurotus group isolates resulted in increasing of extractives total compounds both in vegetative and reproductive phases. Each wild Pleurotus group isolates shows variation in decreasing average of lignin content (10.7 ~ 89.7%) and cellulose (18.9 ~ 87.4%). Pleurotus EB9 are able to decrease the highest lignin (89.7%) and cellulose (87.4%) content of substrate. Classification based on ligninolytic character is different with classification based on morphological and physiological characters. Pleurotus EB9 seems to be separated from other isolates. This shows that there was different ligninolytic character among the isolates. The best isolate for bio-pulping and bio-bleaching agent is Pleurotus EB9 on vegetative phase.

Co-Authors Achmad . Achmad Lisdar Andi T. Lestari Arief B. Witarto Arif Budi WITARTO Bintang C. H. Simangunsong Elis Nina Herliyana Farah Diba Harry T Uhi I Kentut Pandit I Wayan Darmawan I. Sudirman Istie Rahayu Jajat Jachja Kudang Boro Seminar Kurnia Sofyan Lya Rochmawati Mohamad Miftah Rahman Nanda, Muhammad Achirul Niken Subekti Noor Farikhah Haneda Oemijati Rachmatsyah PURNAMA HIDAYAT Rilatupa, James Rita Mutia Rumanintya Lisaria Putri Surjono Surjokusumo Surjono Surjokusumo Syaiful Anwar TARUNI SRI PRAWAST MIEN KAOMINI ANY ARYANI DEDY DURYADI SOLIHIN Trisna PRIADI Ulfah Juniarti Siregar Widyana LUZA

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