TY - JOUR
T1 - Enzymatic catalysis on coal-related compounds in organic media
T2 - kinetics and potential commercial applications
AU - Dordick, Jonathan S.
AU - Ryu, Keungarp
AU - McEldoon, James P.
N1 - Funding Information:
Parts of this paper have been adapted from references 7, 11, 22, 32 and 38. This work was supported from grants from the National Science Foundation (PYI award to JSD) and the Mead Corporation.
PY - 1991/4
Y1 - 1991/4
N2 - Enzymatic catalysis in nonaqueous media has been considered for use in the modification of coal and related compounds including lignin and phenolic resins. This paper reviews the use of horseradish peroxidase and several other oxidative enzymes in organic media, and selected applications of these enzymes in such environments. These applications include phenolic polymerizations, lignin depolymerization, and S-oxidation of dibenzothiophene. The latter application is particularly relevant to coal desulfurization. Specifically, horseradish peroxidase, laccase, and chloroperoxidase were capable of oxidizing dibenzothiophene in 25% dimethylformamide. Yields of over 40% were obtained. Such an enzymatic reaction, used in conjunction with further microbial steps can be used to remove sulfur from coal.
AB - Enzymatic catalysis in nonaqueous media has been considered for use in the modification of coal and related compounds including lignin and phenolic resins. This paper reviews the use of horseradish peroxidase and several other oxidative enzymes in organic media, and selected applications of these enzymes in such environments. These applications include phenolic polymerizations, lignin depolymerization, and S-oxidation of dibenzothiophene. The latter application is particularly relevant to coal desulfurization. Specifically, horseradish peroxidase, laccase, and chloroperoxidase were capable of oxidizing dibenzothiophene in 25% dimethylformamide. Yields of over 40% were obtained. Such an enzymatic reaction, used in conjunction with further microbial steps can be used to remove sulfur from coal.
UR - http://www.scopus.com/inward/record.url?scp=0026139064&partnerID=8YFLogxK
U2 - 10.1016/0921-3449(91)90025-J
DO - 10.1016/0921-3449(91)90025-J
M3 - Article
AN - SCOPUS:0026139064
SN - 0921-3449
VL - 5
SP - 195
EP - 209
JO - Resources, Conservation and Recycling
JF - Resources, Conservation and Recycling
IS - 2-3
ER -