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Sjarief Widjaja
Chemical Engineering Department, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 6011
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Journal : Journal of Engineering and Technological Sciences

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Comparative Study of the Preparation of Reducing Sugars Hydrolyzed from High-Lignin Lignocellulose Pretreated with Ionic Liquid, Alkaline Solution and Their Combination Sangian, Hanny F.; Kristian, Junaidy; Rahma, Sukma; Agnesty, Silvya Yusnica; Gunawan, Setiyo; Widjaja, Arief
Journal of Engineering and Technological Sciences Vol 47, No 2 (2015)
Publisher : ITB Journal Publisher, LPPM ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.601 KB) | DOI: 10.5614/j.eng.technol.sci.2015.47.2.3

Abstract

The ionicliquid [MMIM][DMP] was synthesized from the reactants methyl imidazole [MIM] and trimethylphosphate [TMP] and verified using 1HNMR and FTIR. Coconut coir dust was pretreated with a 1% alkaline solution.Its crystalline structure increased significantly due to the dissolution of lignin and hemicelluloses under alkaline conditions, exposing the cellulose. After NaOH and IL were employed, the XRD showed that peak (002) decreased significantly and peak (101) almost vanished. This significant decrease in crystallinity was related to the alteration of the substrate from the cellulose I structure to the cellulose II structure. The pretreated substrates were hydrolyzed to convert them to reducing sugars by pure cellulase and xylanase,and the reaction was conducted at 60°C, pH 3, for 12 or 48 hours. The yields of sugar hydrolyzed from untreated and NaOH-pretreated substrates were 0.07 and 0.12 g sugar/g lignocellulose, respectively. Pretreatment with IL or the combination of NaOH+IL resulted in yields of reducing sugars of 0.11 and 0.13 g/g, respectively. These findings showed that IL pretreatment of the high-lignin lignocellulose is a new prospect for the economical manufacture of reducing sugars and bioethanol in the coming years.
Comparative Study of the Preparation of Reducing Sugars Hydrolyzed from High-Lignin Lignocellulose Pretreated with Ionic Liquid, Alkaline Solution and Their Combination Hanny F. Sangian; Junaidy Kristian; Sukma Rahma; Silvya Yusnica Agnesty; Setiyo Gunawan; Arief Widjaja
Journal of Engineering and Technological Sciences Vol. 47 No. 2 (2015)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2015.47.2.3

Abstract

The ionicliquid [MMIM][DMP] was synthesized from the reactants methyl imidazole [MIM] and trimethylphosphate [TMP] and verified using 1HNMR and FTIR. Coconut coir dust was pretreated with a 1% alkaline solution.Its crystalline structure increased significantly due to the dissolution of lignin and hemicelluloses under alkaline conditions, exposing the cellulose. After NaOH and IL were employed, the XRD showed that peak (002) decreased significantly and peak (101) almost vanished. This significant decrease in crystallinity was related to the alteration of the substrate from the cellulose I structure to the cellulose II structure. The pretreated substrates were hydrolyzed to convert them to reducing sugars by pure cellulase and xylanase,and the reaction was conducted at 60°C, pH 3, for 12 or 48 hours. The yields of sugar hydrolyzed from untreated and NaOH-pretreated substrates were 0.07 and 0.12 g sugar/g lignocellulose, respectively. Pretreatment with IL or the combination of NaOH+IL resulted in yields of reducing sugars of 0.11 and 0.13 g/g, respectively. These findings showed that IL pretreatment of the high-lignin lignocellulose is a new prospect for the economical manufacture of reducing sugars and bioethanol in the coming years.
Co-Authors Achmad Zubaydi Adi Soeprijanto Adrian Nur Adrian Nur Afan Hamzah, Afan Agra Bachtiar Ahmad Zubaydi Akbarningrum Fatmawati Akhmad Basuki Widodo Aparamarta, Hakun Wirawasista Aparamarta, Hakun Wirawista Ari Anggoro Bagiyo Suwasono Bagiyo Suwasono Bagiyo Suwasono Bagiyo Suwasono, Bagiyo Baiq Firyal Salsabilla Safitri Debra Arlin Puspasari Debra Arlin Puspasari Denistira Fazlur Rahman Desi Liah Martasari Desy Nurwijayanti Dwina Moentamaria Eny Setyowati F Ferry Firmansyah, Arfian Alwi Fredi Susanto Hanny F. Sangian Hellen Kartika Dewi Hellen Kartika Dewi Heru Setyawan I Nyoman Budiantara I. Wuled Lenggoro Ilham Alamsah Ilham Alamsyah Irfan Albana Irma Nurhanifah Fenda Putri Jayyid Zuhdan Junaidi Kristian Junaidy Kristian Junaidy Kristian Kamila Adila Muslim Karima, Nur Kurniawan Candra Eka Prasetya Mamuji Putra Laila Nur Rahmah Laila Nur Rahmah Lidya Lorenta Sitompul M Musmariadi M. Rasyid, Daniel M. Zaed Yuliadi Ma'ruf, Buana Marcus Tukan Muhammad Nurul Hakim Muharja, Maktum Mukti Mulyawan Nadiem Anwar Nur Fadhilah Nur Karima Nurul Maziyah Nurul Maziyah Panunggal, Eko Patdono Suwignjo Rachma, Fanina Aulia Ratna Purwaningsih Ratna Purwaningsih Ratna Purwaningsih Rizki Fitria Darmayanti Samsudin Affandi Setiyo Gunawan Silvya Yusnica Agnesty Silvya Yusnica Agnesty Silvya Yusnica Agnesty Silvya Yusnica Agnesty Siska Nuri Fadilah Siska Nuri Fadilah Soedarmodjo, Thea Prastiwi Soegiono, Soegiono Sri Gunani Partiwi Sri Gunani Partiwi Sukma Rahma Sukma Rahma Sukmawati Rahma Tantular Nurtono Thea Prastiwi Soedarmodjo Tri Achmadi Tri Widjaja Winardi, Sugeng Yakub Hendrikson Manurung Yakub Hendrikson Manurung Zaed Yuliadi Zaed Yuliadi, Zaed