Delignification of lignocellulosic material

Details Delignification of lignocellulosic material Delignification of lignocellulosic material

C - Chemistry, Metallurgy

12

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195/59, 260/306.

C12N 1/22 (2006.01) C07D 209/08 (2006.01) C07D 209/12 (2006.01) C12P 17/10 (2006.01) C12P 17/16 (2006.01) D21C 3/02 (2006.01) D21C 3/22 (2006.01)

Patent

CA 1203188

16 Abstract Delignification of lignocellulosic material A process for the delignification of lignocellulosic materials wherein lignocellulosic material is treated with an alkaline pulping liquor under conditions suitable for the Kraft or Soda Processes and containing a quinonoid additive material which is an indole substituted quinone having a defined structure or a microorganism, a cellular component or a crude or a refined extract of a microorganism containing the indole substituted quinone. Also claimed are defined novel substituted quinones suitable for use in the delignification process and a process for producing these a d other suitable substituted quinones by cultiv- ating microorganism cells of strains of Aspergillus terreus var aureus under suitable conditions.

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