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Ihak Sumardi, M.Si., Ph.D

Associate Professor
Forestry Technology
School of Sciences and Technology
Bandung Institute of Technology
Email :  ihak@itb.ac.id
SINTA | Google Scholar | Scopus

OVERVIEW

Ihak Sumardi, M.Si., Ph.D. is a lecturer in the Forest Technology expertise group with research interests in bamboo-wood strandboard manufacturing, wood science and bio-composites, and forestry sciences.

Year Institution Program Notes
2007 Gifu University, Japan Utilization of Biological Resources Doctoral Degree
2000 Institut Pertanian Bogor (IPB), Indonesia Composite Wood Master’s Degree
1994 Institut Pertanian Bogor (IPB), Indonesia Wood Preservative Bachelor’s Degree

International Journal

Year Author, Title, Journal, DOI
2026 Nurhasanah, S., Sulistyawati, E., Sumardi, I., & Darwis, A. (2026). The Effect of Boiling and Dry Heating on the Starch Content and Durability of Betung Bamboo (Dendrocalamus asper). Journal of the Korean Wood Science and Technology, 54(2), 202–215. https://doi.org/10.5658/wood.2026.54.2.202
2025 Nurhasanah, S., Sulistyawati, E., Sumardi, I., & Darwis, A. (2025). Morphological and vascular bundles characteristics of Betung Bamboo (Dendrocalamus asper) culm based on differences in growing environment. IOP Conference Series Earth and Environmental Science, 1573(1), 012006. https://doi.org/10.1088/1755-1315/1573/1/012006
2025 Hartono, R., Erwinsyah, E., Siregar, Z., Sumardi, I., Sutiawan, J., & Suhesti, E. (2025). Distribution vascular bundles and moisture content of oil palm trunk. AIP Conference Proceedings, 3285, 020011. https://doi.org/10.1063/5.0242020
2025 Rahmani, A. a. N., Rumidatul, A., & Sumardi, I. (2025). Exploration of alternative preservative materials used on bamboo-infecting fungi. AIP Conference Proceedings, 3285, 020045. https://doi.org/10.1063/5.0241126
2025 Sembada, A. A., Hanisia, R. H., Yuliar, Y., Hidayat, Y., & Sumardi, I. (2025). Advances in technology for seed germination of bamboo species. Advances in Bamboo Science, 100143. https://doi.org/10.1016/j.bamboo.2025.100143
2025 Hartono, R., Iswanto, A. H., Priadi, T., Sumardi, I., Sutiawan, J., & Tambunan, F. A. (2025). Fiber quality of Peol Bamboo (Dendrocalamus giganteus Wallich ex Munro) as a raw for pulp and paper. AIP Conference Proceedings, 3285, 020010. https://doi.org/10.1063/5.0242019
2025 Mikha, M., Rumidatul, A., Dungani, R., & Sumardi, I. (2025). A comparative study of preservation method for bamboo Betung (Dendrocalamus asper) based on its retention and penetration. AIP Conference Proceedings, 3285, 020031. https://doi.org/10.1063/5.0240219
2025 Al’afifah, J. A., Sumardi, I., & Darwis, A. (2025). Analysis of the potential bamboo and bamboo processing industry in Sumedang District, West Java, Indonesia. Asian Journal of Forestry, 9(1). https://doi.org/10.13057/asianjfor/r090103
2024 Alamsyah, E. M., Azzahra, A. N., Suhaya, Y., Sutrisno, N., Sumardi, I., Darwis, A., Suheri, A., Malik, J., & Munawar, S. S. (2024). Characteristics of LVB made of gmelina wood (Gmelina arborea Roxb.) with the addition of diammonium phosphate and sodium silicate fire retardants. BioResources, 20(1), 972–993. https://doi.org/10.15376/biores.20.1.972-993
2024 Al’Afifah, J. A., Sumardi, I., Darwis, A., Melani, L., & Suhaya, Y. (2024). Evaluation of staining betung bamboo (Dendrocalamus asper) using natural and synthetic dyes with and without the addition of preservatives. IOP Conference Series Earth and Environmental Science, 1309(1), 012002. https://doi.org/10.1088/1755-1315/1309/1/012002
2023 Suhaya, Y., Sumardi, I., Alamsyah, E. M., Sutrisno, N., & Hidayat, Y. (2023). Environment’s effect on wood characteristics of white jabon grown in West Java and Banten area, Indonesia. BioResources, 19(1), 405–415. https://doi.org/10.15376/biores.19.1.405-415
2024 Sulastiningsih, I. M., Trisatya, D. R., Indrawan, D. A., Supriadi, A., Aini, E. N., Santoso, A., Yuniarti, K., Prasetiyo, K. W., Syamani, F. A., Prabawa, S. B., Subiyanto, B., & Sumardi, I. (2024). Properties of oriented strand boards made from two Indonesian bamboo species at different pressure levels and strand lengths. BioResources, 19(2), 2863–2882. https://doi.org/10.15376/biores.19.2.2863-2882
2020 Sumardi, I., Hadiyane, A., Rumidatul, A., Melani, A. 2020. Characteristics of Empty Palm Bunch Fibers as Alternative Pulp Material. American Journal of Applied Sciences, 17: 129-134
2020 Rahmawati, N., Sumardi, I., and Dungani, R. 2020. Isolation and identification of fungi inhabiting rubber-impregnated wood, and their role of quality changing the impregnated wood. BioResources 15(2), 2839-2849.
2020 Alamsyah, E. M., Sumardi, I., Darwis, A., Suhaya, Y., Hidayat, Y. 2020. The possible use of surian tree (Toona sinensis Roem) branches as an alternative raw material in the production of composite boards. Journal of Wood Science 66:25
2019 Karliati, T., Febrianto, F., Syafii, W., Wahyudi, I., Sumardi, I., Lee, S. H., Kim, N. H. 2019. Properties of Laminated Wood Bonded with Modified Gutta-Percha Adesive at Various Surface Roughness Profile of Laminae. Bioresources, 14(4):8241-8249.
2019 Maulana, S., Gumelar, Y., Fatrawana, A., Maulana, M. I., Hidayat, W., Sumardi, I., Wistawa, N. I., Lee, S. H., Kim, N. H., Febrianto, F. 2019. Destructive and Non-destructive Tests of Bamboo Oriented Strand Board under Various Shelling Ratios and Resin Contents. Journal Korean Wood Science Technology, 47(4):519-532.
2018 Darwis, A., Sumardi, I., Suhaya, Y., Sunarya, S. 2018. Characteristic of vascular bundles and morphologi of Giganthochloa apus culm. Asian Journal of Plant Sciences 129-133
2018 Karliati, T., Sumardi, I., Darwis, A., and Rumidatul, A. (2018). Incorporation of phenol formaldehyde based black liquor as an adhesive on the performance of plywood. Biol. Sci. 18(7), 346-353. P-ISSN 1727-3048. E-ISSN 1812-5719
2018 Sumardi, I., Dungani, R., Suhaya, Y. Rumidatul, A., Rofii M. N. 2018. Alternative Materials for Strandboards Made with Waste Veneer from Industrial Plywood in Indonesia. BioResources, 13(4): 8385.
2017 Maulana, S., Busyra, I., Fatrawana, A., Hidayat, W., Sari, R. K., Sumardi, I., Witsawa, I. N. J., Lee, S. H., Kim, N. H., Febrianto, F. 2017. Effects of Steam Treatment on Physical and Mechanical Properties of Bamboo Oriented Strand Board. Journal Korean Wood Science Technology, 45(6):872-882
2017 Alamsyah, E. M., Sumardi, I., Sutrisno, Darwis, A., Suhaya, Y. 2017. Bond Quality of Laminated Wood Made from Surian (Toona sinensis Roem) and Sengon (Paraserianthes falcataria (L.) Nielsen). Journal Biological Scinece, 18:32-38
2016 Dungani, R., Abdul Khalil, H.P.S., Islam, Md.N., Sumardi, I., Aditiawati, P., Hadiyane, A. 2016. Soil burial degradation of Oil Palm Shell (OPS) nanofiller and Phenol Formaldehyde (PF) resin-impregnated Oil Palm Trunk Lumber (OPTL): Dimensional stability and mechanical properties. Journal of Biobased Materials and Bioenergy
2016 Sulaeman, A., Dungani, R., Islam, Md. N., Khalil, H. P. S. A., Sumardi, I., Hernawan, D., Hadiyane, A. 2016. Preliminary Study of Characterization of Nanoparticles from Coconut Shell as Filler Agent in Composites Materials. Journal of Material Science, 1:1-9.
2015 Sumardi, I., Suzuki, S., Rahmawati, N. 2015. Effect of Board Type on Some Properties of Bamboo Strandboard. Journal Mathematic and Fundamental Science, 47(1):52-61. Dungani R., Khalil H.P.S.A., Sumardi I., Suhaya Y., Sulistyawati E., Islam M.N., Suraya N.L.M., Aprilia N.A.S. 2015. Non-wood renewable materials: Properties improvement and its application. Biomass and Bioenergy: Applications.
2014 Sumardi, I.; Suzuki, S.; 2014. Dimensional Stability and Mechanichal Properties of Strandboard Made from Bamboo. BioResources Journal 9(1): 1159-1167.
2013 Sumardi, I.; Suzuki, S.; 2013. Parameters of strand alignment distribution analysis and bamboo strandboard properties. BioResources Journal 8(3):4459-4467.
2013 Rudi Dungani, H.P.S. Abdul Khalil, Ihak Sumardi, Yoyo Suhaya, Endah Sulistyawati, Md. Nazrul Islam, N.L.M. Suraya and N.A. Sri Aprilia. 2013. Non-wood Renewable Materials: Properties Improvement and Its Application (in editing). In: Khalid Hakeem, Mohammad Jawaid, Umer Rashid (ed.). Biomass and Bioenergy: Applications (Volume II). SPRINGER-Verlag Publisher, (Accepted and now in editing)
2010 Sumardi, I.; Suhaya, Y; Trio Putra, T. 2010. Some importance properties of bamboo-wood strandboard. Jurnal Ilmu dan Teknologi Kayu Tropis. 8(1):77-82.
2010 Sumardi, I.; Nurcipto, H.; Abbas, A. 2010. Pembuatan papan stranboard dari bambu betung (Strandboard manufactured from bamboo). Wana Mukti Forestry Research Journal. 11(1):47-52.
2008 Sumardi, I.; Kojima, Y; Suzuki, S. 2008. Effect of strand length and layer structure on some properties of strandboard made from bamboo. J. Wood Sci. 54(2):128-133.
2007 Sumardi, I.; Ono, K; Suzuki, S.: 2007. Effect of board density and layer structure on the mechanical properties of bamboo oriented strandboard, J. Wood Sci. 53(6):510-515
2006 Sumardi, I.; Suzuki, S.; Ono, K.: 2006. Some important properties of strandboard manufactured from bamboo, Forest Prod. J., 56(6):59-63.

National Journal

Year Author, Title, Journal, DOI
2021 Azmi, W. K., Sumardi, I., & Suhaya, Y. (2021). Karakterisasi Asap Cair Distilasi dan Terdistilasi Vakum dari Limbah Serasah Pinus. Jurnal Selulosa, 11(02), 103. https://doi.org/10.25269/jsel.v11i02.334
2019 Maulana, S., Damanik, M. Q. A., Marwanto, Maula, M. I., Fatrwana, A., Sumardi, I., Wistawa, N. J., Febrianto, F. 2019. Ketahanan Oriented Strand Board Bambu Betung dengan Perlakuan Steam pada Strand terhadap Cuaca. Jurnal Imu Teknologi Kayu Tropis 17(1):34-46.
2004 Sumardi, I.; Nur, S.H.: 2004. Uji pengawetan awal terhadap serangan jamur biru pada kayu tusam/Pinus merkusii. Wana Mukti Forestry Research Journal, 3(1):61-66
2003 Sumardi, I.; Suhaya, Y; Firmansyah, F.: 2003. Pengaruh pencampuran kulit dan partikel kayu Acasia (Acasia mangium Wild) terhadap kualitas papan partikel. Wana Mukti Forestry Research Journal, 2(1):61-71
2001 Bakar. E.S; Hadi, Y.S; Rahman, O; Sumardi, I.: 2001. Perbaikan kualitas kayu sawit: Impregnasi dengan phenol formaldehyde. Jurnal Teknologi Hasil Hutan, 15(2): 14-19
1998 Sumardi, I. 1998. Berat sebagai dasar penentu kualitas kayu untuk 20 jenis kayu tropika. Majalah Ilmiah Universitas Winaya Mukti 8: 21-24
1997 Hartono, R; Sumardi, I. 1997. Pengaruh pengukusan, perendaman urea, perendaman ammonia terhadap retensi, penetrasi basilit triple PI pada kayu kruing dan kamper. Majalah Ilmiah Universitas Winaya Mukti 5:27-31
Year Research Funding
2020 Pengembangan Bambu Hybrid Sebagai Alternatif Pemenuhan Bahan Baku Industri
2020 Peningkatan Kualitas Kayu dari Aspek Ketahanan terhadap Serangan Fungi
2020 Potensi Limbah Tandan Kosong Kelapa Sawit sebagai Bahan Baku Substitusi Impor Dalam Mendukung Industri Pulp dan Kertas Nasional
2021 Karakteristik Bambu Impregnasi
2021 PM Top Down Tahun 2021 – Aplikasi Teknologi Pengeringan dan Pengawetan Bambu untuk Meningkatkan Keawetan Material pada Produk Sepeda dari Bambu
2021 Komposit Epoksi dengan Penambahan Filler Mikro, Nano dan Mikro/Nano Karbon Hitam dan Karbon Aktif Tempurung Kelapa
2021 Pemanfaatan Material Berbasis Selulosa untuk Mengembangkan Pakaian Pelindung Diri yang Berkelanjutan (Sustainable Personal Protective Clothing) [SITH.PN-6-09-2021]
2022 Aplikasi Teknologi Pengawetan Injeksi “Boucherie” pada Bambu Betung untuk Meningkatkan Kualitas Material sebagai Bahan Baku Frame Sepeda Bambu di Kabupaten Temanggung
2022 Desain dan Evaluasi Kinerja Alat Pengering Surya (Solar Dryer) untuk Pengeringan Bambu
2022 The 14th International Symposium of Indonesian Wood Research Society
2023 Karakteristik Bambu Hybrid Laminasi Sebagai Alternatif Pengganti Kayu
2023 Menentukan Luas Hutan Minimal di Daerah Tangkapan Air (DTA) Cikeruh untuk Penyediaan Air Berkelanjutan
2023 Optimalisasi Keberhasilan Proses Pengawetan sebagai Acuan bagi Industri Pengolahan Bambu
2023 Pengembangan Laminated Veneer Lumber (LVL) dari Kayu Sengon sebagai Komponen Rumah untuk Lantai Kayu Tahan Api dan Tahan Rayap Tanah serta Nilai Keekonomiannya
2023 Pengeringan Metoda Pengasapan Solusi Bagi Industri Pengolahan Bambu yang Murah dan Ramah Lingkungan
2023 Workshop Kegiatan Pelatihan Budidaya Anggrek
2024 Eksplorasi Pengawetan Bambu Menggunakan Bahan Alami yang Ramah Lingkungan
2024 Pelatihan Pengolahan Bambu Komersial di Lahan Bekas Galian Tambang, Sungai Seluang, Kec. Samboja, Kab. Kutai Kartanegara
2024 Karakterisasi Anatomi dan Kimiawi Bambu Bengkok Alami pada Internode Bambusa vulgaris [SITH.PPMI-1-37-2024]
2025 Variasi Karakteristik Dasar Bambu Betung (Dendrocalamus asper) terhadap Sifat Fisik dan Mekanik [SITH.PPMI-1-35-2025]
2025 EQUITY2025 – Pengembangan Teknologi Pengeringan Bambu untuk Mendukung Pengrajin Bambu di Kabupaten Ngada [DRI.PN-17-144-2025]
2025 Efektivitas Penurunan Kandungan Pati terhadap Tingkat Serangan Kumbang Bubuk pada Bambu Betung [DRI.PN-14-61-2025]
2025 Efektivitas Penurunan Kandungan Pati terhadap Tingkat Serangan Kumbang Bubuk pada Bambu Betung
2026 Optimasi Suhu dan Waktu Heat Steam Treatment terhadap Sifat Fisik, Mekanik, dan Kandungan Pati Bambu Tali (Gigantochloa apus) [SITH.PN-6-213-2026]
Year Activity Leader Member
2021 PM TOP DOWN TAHUN 2021 – APLIKASI TEKNOLOGI PENGERINGAN DAN PENGAWETAN BAMBU UNTUK MENINGKATKAN KEAWETAN MATERIAL PADA PRODUK SEPEDA DARI BAMBU [LPPM.PM-8-53-2021] Ihak Sumardi Rudi;
2022 APLIKASI TEKNOLOGI PENGAWETAN INJEKSI “BOUCHERIE” PADA BAMBU BETUNG UNTUK MENINGKATKAN KUALITAS MATERIAL SEBAGAI BAHAN BAKU FRAME SEPEDA BAMBU DI KABUPATEN TEMANGGUNG [SITH.PM-8-22-2022] Ihak Sumardi
2023 WORKSHOP KEGIATAN PELATIHAN BUDIDAYA ANGGREK [SITH.PM-10-02-2023] Ihak Sumardi
2024 PELATIHAN PENGOLAHAN BAMBU KOMERSIAL DI LAHAN BEKAS GALIAN TAMBANG, SUNGAI SELUANG, KEC. SAMBOJA, KAB. KUTAI KARTANEGARA [LPPM.EXT-2-26-2024] Ihak Sumardi
2025 PENINGKATAN KAPASISTAS DAN KELEMBAGAAN KELOMPOK MASYARAKAT (KEMAS) DALAM TATA LAKSANA SISTEM AGROFORESTRI MASYARAKAT LOKAL KALTARA [SITH.PPMI-2-04-2025] Anne Hidayane Atmawi Darwis; Sopandi Sunarya; Noviana Budianti; Endah Sulistyawati; Eka Mulya Alamsyah; Yayat Hidayat; Ihak Sumardi; Yoyo Suhaya; Rudi Dungani; Alfi Rumidatul; Tati Karliati; Susana Paulina Dewi; Sutrisno; Asep Suheri; Anca Awal Sembada; Jeprianto Manurung;
2025 PEMANFAATAN LIMBAH INDUSTRI KAYU SEBAGAI BAHAN BAKU ENERGI TERBARUKAN DI KABUPATEN CIAMIS [DPMK.PM-8-83-2025] Ihak Sumardi
Year Location Programm Notes
2013 ITB Bandung, Indonesia Sumardi, I., Suzuki, S., and Rachmawati, N. 2013. Effect of Board Type on Some Properties of Bamboo Strandboard. International Seminar on Tropical Bio-Resources for Sustainable Bio-Industry 2013 (ISTB 2013). 30-31 October 2013 Presenter
2013 Balikpapan, Indonesia Sumardi, I. 2013. The Manufacture of Particleboard Using Wood Wasted from Plywood Industry. The Fifth International Symposium of Indonesian Wood Research Society (IWoRS), November 7-8, 2013 Presenter
2011 Yogyakarta, Indonesia Sumardi, I.; Darwis, A. 2011. Strandboard Manufacture from Veneer Wasted. The 3rd International Symposium of Indonesian Wood Research Society Presenter
2009 Bogor, Indonesia Sumardi, I.; Suhaya, Y.; Trio Putra, T. 2009. Some Importance Properties of Bamboo-Wood Strandboard. The first International Symposium of Indonesian Wood Research Society Presenter
2008 Miyazaki, Japan Suzuki, S.; Sumardi, I.; Kojima, Y. 2008. Effect of mat-forming parameters on the basic properties of bamboo oriented strandboard. The 10th Symposium of World Conference on Timber Engineering. p. 143 Presenter
2007 Hiroshima, Japan Sumardi, I.; Kojima, Y.; Suzuki, S. 2007. The strand alignment analysis using the von Mises. Proceedings of the 57th Annual Meeting of Japan Wood Research Society, JWRS, p. 45 Presenter
2006 Oporto, Portugal Suzuki, S.; Sumardi, I.; Ono, K. 2006. Effect of manufacturing parameter on the mechanical properties of bamboo strandboards. Proceeding of the 2nd International Conference on Environmentally-Compatible Forest Products, p. 473-481 Presenter
2006 Akita, Japan Sumardi, I.; Kojima, Y.; Suzuki, S. 2006. Effects of layer-structure on strandboard from bamboo, Proceedings of the 56th Annual Meeting of Japan Wood Research Society, JWRS, p. 54 Presenter
2005 Yokohama, Japan Sumardi, I.; Ono, K.; Suzuki, S. 2005. Effect of density and layer structure on the mechanical properties of bamboo strandboard, Proceedings of the IWPS2005 International Symposium on Wood Science and Technology, pp. 111-112 Presenter
2005 Bali, Indonesia Suhaya, Y.; Darwis, A.; Sumardi, I. 2005. Physical and mechanical properties of teak wood (Tectona grandis L.F) on various ages class (I-VIII). Proceeding of the 6th International Wood Science Symposium, p. 14 Presenter
2002 Serpong, Indonesia Sumardi, I.; Entang, R. 2002. Physical and mechanical properties of densified oil palm wood. Proceeding of the 4th International Wood Science Symposium, p. 66 Presenter
Year Organization’s Name
1997-present Indonesian Wood Research Society (IWoRS)
2004-present The Japan Wood Research Society

Undergraduate Courses

  • Forest biosystem research and seminar, research methodology, postharvest product shrinkage
  • Final Project I: Postharvest research, Final Project II: Preliminary design of postharvest systems, seminar and defense
  • Postharvest processing of forest wood products, environmental knowledge, postharvest process system design
Academic year Course name
2024/2025 Drying Technology
2024/2025 Postharvest Research
2024/2025 Postharvest Research Methodology
2024/2025 Final Project II: Preliminary Design of Postharvest Systems
2024/2025 Bioproduct Certification
2024/2025 Wood Processing Technology
2024/2025 Environmental Knowledge
2024/2025 Research Methodology
2024/2025 Postharvest Research Methodology
2024/2025 Postharvest Process Systems
2024/2025 Bamboo Processing Technology
2024/2025 Postharvest Research
2024/2025 Postharvest System Design
2025/2026 Research Methodology
2025/2026 Drying Technology (K02)
2025/2026 Postharvest Research (K01)
2025/2026 Postharvest Research Methodology
2025/2026 Postharvest System Design
2025/2026 Bioproduct Certification
2025/2026 Wood Processing Technology