Fast Microwave-assisted Pretreatment for Bioconversion of Sawdust Lignocellulose to Glucose

5th International Conference on Theoretical and Applied Physics 2015

Sudiana, I. Nyoman^1 ; Mitsudo, Seitaro^2 ; Susilowati, Prima Endang^3 ; Sutiari, Desak Ketut^1 ; Arsana, Made Widana^4 ; Firihu, Muhammad Zamrun^1 ; Ngkoimani, La Ode^5 ; Aba, La^1 ; Hasan, Erzam Sahaluddin^1 ; Cahyono, Edi^6 ; Sabchevski, Svilen^7 ; Aripin, Haji^8 ; Suastika, Komang Gde^9

Department of Physics, Faculty of Mathematic and Natural Science, Halu Oleo University, Kampus Bumi Tridharma Anduonohu, Kendari

93232, Indonesia^1

Research Center for Development of Far-Infrared Region, University of Fukui, 3-9-1 Bunkyo, Fukui-shi

910-8507, Japan^2

Department of Chemistry, Faculty of Mathematic and Natural Science, Halu Oleo University, Kampus Bumi Tridharma Anduonohu, Kendari

93232, Indonesia^3

Department of Agrotechnology, Faculty of Agriculture, Halu Oleo University, Kampus Bumi Tridharma Anduonohu, Kendari

93232, Indonesia^4

Department of Geophysics, Faculty of Earth Sciences and Technology, Halu Oleo University, Kampus Bumi Tridharma Anduonohu, Kendari

93232, Indonesia^5

Department of Mathematics, Faculty of Mathematic and Natural Science, Halu Oleo University, Kampus Bumi Tridharma Anduonohu, Kendari

93232, Indonesia^6

Lab. Plasma Physics and Engineering, Institute of Electronics of Bulgarian Academy of Sciences, Bulgaria^7

Center for Material Processing and Renewable Energy, Faculty of Learning Teacher and Education Science, Siliwangi University, Jl. Siliwangi 24, Tasikmalaya, West Java

46115, Indonesia^8

Department of Physics Education, Palangka Raya University, 73112, Indonesia^9

关键词: Conventional heating;    Conventional methods;    Microstructure evaluations;    Microwave assisted;    Microwave effects;    Microwave energies;    Reagent concentration;    Structural evolution;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/846/1/012013/pdf
DOI  :  10.1088/1742-6596/846/1/012013

来源: IOP

【 摘 要 】

A preliminary study of application microwave energy for bioconversion of cellulosic sawdust to glucose was performed. The effects of the microwave were compared to those of the conventional method for each solvent. It was expected that a broader mechanism responsible for the microwave effects on the chemical processes, especially the pretreatment on the hydrolysis of cellulose can be explained. Reagents used were an acid (HCl), an alkali (NaOH), and distilled water (H2O). The experimental results showed that the microwave-assisted pretreatment on the lignocellulosic sawdust faster than by using conventional heating (hotplate). Moreover by using microwave a higher glucose content compared to the conventional method was found. With microwave during hydrolisis, high temperatures and high reagent concentrations were not required. Pretreatment with a microwave at 800 Watt and solvent NaOH 22,50 mg/mL at a temperature of 120°c appeared to be most efficient found in this experiment. These results indicate that microwave effective for bioconversion of cellulosic sawdust to glucose. The microstructure evaluation by using SEM and XRD should be performed to understand more detail the effect especially on their cellulosic structural evolution.