Parameters affecting in vitro monolignol couplings during dehydrogenative polymerization in the presence of peroxidase and H2O2
  • Hwang, Hyewon
  • Moon, Sun-Joo
  • Won, Keehoon
  • Kim, Yong Hwan
  • Choi, Joon Weon
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12
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13

초록

Dehydrogenative polymers (DHP) were synthesized by end-wise coupling (Zutropfverfahren) with conifelyl alcohol in a mixture of organic solvents (isopropyl alcohol, dioxane, acetonitrile) and buffer with various ratios in the presence of horse radish peroxidase and H2O2. When the ratio of organic solvent to buffer increased, DHP yield decreased from 78.3% to 42.7% in dioxane/buffer and from 77.8% to 43.2% in acetonitrile/buffer, whereas DHP yield in isopropyl alcohol/buffer was almost constant from 78.4% to 74.0%. The effects of adding organic solvents to the buffer were also evaluated with GPC analysis of DHP and frequency of beta-O-4 linkage in DHP by DFRC analysis. (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

키워드

Dehydrogenative polymerizationLigninSolvent effectbeta-O-4 FormationSteric hindranceOXIDATIVE POLYMERIZATIONORGANIC-SOLVENTSLIGNINCONIFERYLMIXTURESALCOHOLSSINAPYLETHANOLACID
제목
Parameters affecting in vitro monolignol couplings during dehydrogenative polymerization in the presence of peroxidase and H2O2
저자
Hwang, HyewonMoon, Sun-JooWon, KeehoonKim, Yong HwanChoi, Joon Weon
DOI
10.1016/j.jiec.2014.12.014
발행일
2015-06-25
유형
Article
저널명
Journal of Industrial and Engineering Chemistry
26
페이지
390 ~ 395