International N&h Denmark Aps

Mads Brogger Pedersen

Zheyong Yu

Zhenghong Zhang

Susan Arent Lund

Rosalyn Lau

Brian Soegaard Laursen

Elijah Gituanjah Kiarie

Luis Fernando Romero Millan

Jan Hendrik Van Tuijl

Soren Dalsgaard

The present invention relates to a method for solubilising arabinoxylan-containing material (particularly insoluble arabinoxylan-containing material), comprising admixing a xylan-containing material with a xylanase comprising a polypeptide sequence shown herein as SEQ ID No. 3, SEQ ID No. 2, SEQ ID No. 1, SEQ ID No. 9, SEQ ID No. 10. SEQ ID No. 11 or SEQ ID No. 15, or a variant, homologue, fragment or derivative thereof having at least 75% identity with SEQ ID No. 3 or SEQ ID No. 2 or SEQ ID No. 1 or SEQ ID No. 9 or SEQ ID No. 10 or SEQ ID No. 11 or SEQ ID No. 15; or a polypeptide sequence which comprises SEQ ID No. 3, SEQ ID No. 2, SEQ ID No. 1, SEQ ID No. 9, SEQ ID No. 10. SEQ ID No. 11 or SEQ ID No. 15 with a conservative substitution of at least one of the amino acids; or a xylanase which is encoded by a nucleotide sequence shown herein as SEQ ID No. 6, SEQ ID No. 5, SEQ ID No. 4, SEQ ID No. 12. SEQ ID No. 13. SEQ ID No. 14. SEQ ID No. 16. SEQ ID No. 17 or SEQ ID No. 18, or a nucleotide sequence which can hybridize to SEQ ID No. 6, SEQ ID No. 5, SEQ ID No. 4, SEQ ID No. 12, SEQ ID No. 13, SEQ ID No. 14. SEQ ID No. 16. SEQ ID No. 17 or SEQ ID No. 18 under high stringency conditions, or a nucleotide sequence which has at least 75% identity with SEQ ID No. 6, SEQ ID No. 5, SEQ ID No. 4, SEQ ID No. 12, SEQ ID No. 13, SEQ ID No. 14, SEQ ID No. 16. SEQ ID No. 17 or SEQ ID No. 18, or a nucleotide sequence which differs from SEQ ID No. 6 or SEQ ID No. 5 or SEQ ID No. 4 or SEQ ID No. 12 or SEQ ID No. 13 or SEQ ID No. 14 or SEQ ID No. 16 or SEQ ID No. 17 or SEQ ID No. 18 due to the degeneracy of the genetic code, or a xylanase obtainable (or obtained) from. The present invention also relates to a novel xylanase comprising (or consisting of) a polypeptide sequence shown herein as SEQ ID No. 3, SEQ ID No. 2 or SEQ ID No. 1, or a variant, homologue, fragment or derivative thereof having at least 99% identity with SEQ ID No. 3 or SEQ ID No. 2 or SEQ ID No. 1; or a xylanase which is encoded by a nucleotide sequence shown herein as SEQ ID No. 6, SEQ ID No. 5 or SEQ ID No. 4, or a nucleotide sequence which can hybridize to SEQ ID No. 4 or SEQ ID No. 5 under high stringency conditions, or a nucleotide sequence which has at least 97.7% identity (preferably 98% identity) with SEQ ID No. 6, SEQ ID No. 5 or SEQ ID No. 4. The present invention yet further relates to methods relating to feedstuffs, malting and brewing, processing of grain-based materials such as during the production of bioethanol or biochemical (e.g. bio-based isopropanol), or wheat gluten-starch separation processes and the like.

Xylanases for solubilizing arabinoxylan-containing material

Growing community of inventors

Frederiksberg, Denmark

Mads Brogger Pedersen