Conversion of cellulose into reducing sugar by solution plasma process (SPP)

I Prasertsung; P Chutinate; A Watthanaphanit; N Saito; S Damrongsakkul

doi:10.1016/j.carbpol.2017.05.025

Conversion of cellulose into reducing sugar by solution plasma process (SPP)

Carbohydr Polym. 2017 Sep 15:172:230-236. doi: 10.1016/j.carbpol.2017.05.025. Epub 2017 May 20.

Authors

I Prasertsung¹, P Chutinate², A Watthanaphanit³, N Saito⁴, S Damrongsakkul⁵

Affiliations

¹ Chemical Engineering Program, Faculty of Engineering, Naresuan University, Phitsanulok 65000, Thailand; Plasma Technology and Nuclear Fusion Research Unit, Chulalongkorn University, Bangkok 10330, Thailand. Electronic address: isarawutp@nu.ac.th.
² Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; Plasma Technology and Nuclear Fusion Research Unit, Chulalongkorn University, Bangkok 10330, Thailand.
³ Department of Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand.
⁴ Department of Materials, Physics, and Energy Engineering, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan.
⁵ Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand; Plasma Technology and Nuclear Fusion Research Unit, Chulalongkorn University, Bangkok 10330, Thailand. Electronic address: siriporn.d@chula.ac.th.

PMID: 28606530
DOI: 10.1016/j.carbpol.2017.05.025

Abstract

In the present study, cellulose colloids are treated with the solution plasma process in order to prepare reducing sugar. The investigated parameters are treatment time, type of electrodes, and applied pulse frequency of the bipolar supply. The reducing sugar was characterized by DNS method and the%yield of total reducing sugar (TRS) was then calculated. The crystal structure and chemical structure of plasma-treated cellulose was measured by XRD and FT-IR, respectively. The%yield of TRS was greatly enhanced by solution plasma treatment using Fe electrode. SEM and TEM micrograph indicated that Fe electrode yield the incidental Fe nanoparticles, hypothesized to catalyze the cellulose degradation during SPP treatment. The crystal structure of cellulose was destroyed. Solution plasma treatment of cellulose using Fe electrode at the high applied frequency pulse provided the highest%TRS.

Keywords: Cellulose; Degradation rate; Nanoparticles; Reducing sugar; Solution plasma process.