No abstract

The goal of this study was to investigate change of thermal decomposition feature of miscanthus (Miscanthus sacchariflorus) after removal of inorganic constituents using distilled water (D.I-w; 30, 60 and 90°C). The carbon content was increased whereas the oxygen content was decreased with the temperature of D.I-w treatment. Moreover, ash content was slightly decreased from 4.6% of control to 3.2% of 90°C D.I-w treated sample. Results of total monomeric sugar contents and X-ray diffraction (XRD) analysis showed that structural changes of cellulose/

In this study, catalytic activation using sulfuric acid lignin (SAL), the condensed solid by-product from saccharification

본 연구에서는 천연리그닌의 전구물질인 3종의 모노리그놀[p-coumaryl alcohol (PCA), coniferyl alcohol (CA), sinapyl alcohol (SA)]을 이용하여 horseradish peroxidase (HRP, EC. 1.11.1.7)/H2O2 조건하에서 dehydrogenative polymers (DHPs)를 제조하였다. 합성한 DHPs와 천연리그닌의 구조적 특성을 비교하기 위 해 소나무와 포플라 milled wood lignin (MWL)과 함께 Gel permeation chromatography (GPC)에 의한 분자 량 측정과 Derivatization followed by reductive cleavage (DFRC) 분석에 의한 β-O-4 결합 빈도를 측정하였 다.

To investigate the effects of ionic liquid pretreatment on biomass, giant miscanthus was treated with 1-ethyl-3-methylimidazolium acetate ([Emim][OAc]) and 1-butyl-3-methylimidazolium acetate ([Bmim][OAc]) at three temperature conditions (90℃, 110℃, and 130℃). As temperature condition increased, yield of the cellulose-rich product (CP) was reduced from 87.2% to 67.6%, while yield of the ionic liquid lignin (ILL) increased from 2.2% to 9.9%. Compared to the ILL, CP had lower carbon contents and higher oxygen contents. Enzymatic hydrolysis of CPs showed that