The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 02, 1990

Filed:

May. 09, 1988
Applicant:
Inventors:

Willis A Wood, Cardiff, CA (US);

Lillian M Wondrack, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12R / ; C12P / ; C12P / ; C12N / ;
U.S. Cl.
CPC ...
435166 ; 435 41 ; 435131 ; 435132 ; 435171 ; 435192 ; 435254 ; 435911 ;
Abstract

A method is provided for converting coal to low molecular weight organic compounds comprising combining an aqueous solution of an aqueous-soluble polymeric coal substrate with a lignin peroxidase, oxygen and hydrogen peroxide. The invention is exemplified using the lignin peroxidase from Phanerochaete chrysosporium. Also provided are aqueous-soluble polymeric coal substrates suitable for lignin peroxidase-catalyzed depolymerization and methods of preparing such substrates. Finally, a method is provided for isolating the lignin peroxidase from mycelia-free, unconcentrated media of cultures of P. chrysosporium producing the enzyme.


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