Mannanase variants and polynucleotides encoding same

An isolated mannanase variant, or recombinant polypeptide or an active fragment thereof comprising a modification at one or more positions corresponding to a position selected from the positions 101, 108, 132, 133, 177, 257 and 275 of the polypeptide of SEQ ID NO:

• 2, wherein each modification is independently a substitution, insertion, or deletion,
• wherein said variant, polypeptide or fragment thereof has at least 90% sequence identity but less than 100% sequence identity to the polypeptide of SEQ ID NO:
• 1 or the polypeptide of SEQ ID NO:
• 2,
• wherein said variant, polypeptide or fragment thereof has mannanase activity, and
• wherein said variant, polypeptide or fragment optionally further comprises a substitution, insertion, or deletion at one or more positions corresponding to a position selected from the positions 8, 9, 11, 13, 18, 21, 34, 37, 45, 47, 65, 100, 104, 107, 110, 114, 115, 116, 142, 147, 152, 154, 164, 169, 173, 174, 176, 180, 183, 185, 196, 199, 201, 202, 205, 206, 210, 215, 226, 229, 231, 239, 243, 245, 260, 267, 270, 278, 282, 283, 284, 288, 292, 293 and 295 of the polypeptide of SEQ ID NO:
• 2.