naa a22 4500 510819753 CHVBK 20180411083525.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11814-013-0078-8 doi (NATIONALLICENCE)springer-10.1007/s11814-013-0078-8 Inulin conversion to hydroxymethylfurfural by Brønsted acid in ionic liquid and its physicochemical characterization [Elektronische Daten] [Young-Byung Yi, Myoung-Gyu Ha, Jin-Woo Lee, Chung-Han Chung] A simple conversion process of inulin polymer into hydroxymethylfurfural (HMF) was developed using Brønsted acid catalyst (HCl) in the presence of an ionic liquid, 1-octyl-3-methylimidazolium chloride ([OMIM]Cl). In addition, the physicochemical properties of inulin particle and its depolymerixation products were scrutinized. FESEM and XRD diffraction frequency showed that inulin particles are clustered in a granulated formation and their molecular structure is highly amorphous. FT-IR analysis identified five characteristic frequency regions: Region 1; 700-900, Region 2; 900-1,200, Region 3; 1,200-1,350; Region 4; 1,350-1,500, and Region 5; 1,530-1,800 cm−1. HPLC analysis confirmed that the major composition of inulin consists of fructose and glucose. The synthesis of HMF was significantly affected by the Brønsted catalyst and its concentration. Its highest yield (63.1±5.1 dwt%) was achieved at 0.3M HCl in the presence of [OMIM]Cl. No presence of the Brønsted catalyst exhibited negligible HMF yield (2.3±1.1 dwt%). Our results demonstrate that the Brønsted catalyst plays a pivotal role in the catalytic process of HMF synthesis from inulin polymer. Korean Institute of Chemical Engineers, Seoul, Korea, 2013 Brønsted Acid nationallicence Hydroxymethylfurfural nationallicence Inulin Polymer nationallicence Ionic Liquid nationallicence Yi Young-Byung Department of Biotechnology, Dong-A University, 604-714, Busan, Korea aut Ha Myoung-Gyu High-Technology Components & Materials Research Center, Korea Basic Science Institute, 618-230, Busan, Korea aut Lee Jin-Woo Department of Biotechnology, Dong-A University, 604-714, Busan, Korea aut Chung Chung-Han Department of Biotechnology, Dong-A University, 604-714, Busan, Korea aut Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/7(2013-07-01), 1429-1435 0256-1115 30:7<1429 2013 30 11814 https://doi.org/10.1007/s11814-013-0078-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11814-013-0078-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yi Young-Byung Department of Biotechnology, Dong-A University, 604-714, Busan, Korea aut NATIONALLICENCE 700 1- Ha Myoung-Gyu High-Technology Components & Materials Research Center, Korea Basic Science Institute, 618-230, Busan, Korea aut NATIONALLICENCE 700 1- Lee Jin-Woo Department of Biotechnology, Dong-A University, 604-714, Busan, Korea aut NATIONALLICENCE 700 1- Chung Chung-Han Department of Biotechnology, Dong-A University, 604-714, Busan, Korea aut NATIONALLICENCE 773 0- Korean Journal of Chemical Engineering Springer US; http://www.springer-ny.com 30/7(2013-07-01), 1429-1435 0256-1115 30:7<1429 2013 30 11814 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer