公开(公告)号：US09644193B2

公开(公告)日：2017-05-09

申请号：US14909211

申请日：2014-08-04

申请人： Euglena Co., Ltd.

发明人： Kengo Suzuki ,  Ryo Arashida ,  Yuka Marukawa ,  Eriko Yoshida ,  Takumi Takeda ,  Yuki Nakano ,  Naotake Konno ,  Machiko Takahashi

IPC分类号： C12N9/26 ,  C12N15/00 ,  C12P19/14 ,  C12P21/06 ,  C12P21/04 ,  C07H21/04 ,  C12N9/42 ,  C12N9/24 ,  A23K20/189 ,  C12P19/12

CPC分类号： C12N9/244 ,  A23K20/189 ,  C12N9/2405 ,  C12P19/12 ,  C12P19/14 ,  C12Y302/01006 ,  C12Y302/01039

摘要： A β-1,3-glucanase that exhibits decomposition activity with respect to paramylon derived from the genus Euglena. The β-1,3-glucanase is derived from the genus Euglena and exhibits the properties indicated below: (1) effect: hydrolyzing the β-1,3-bond of β-1,3-glucan; and (2) substrate specificity: decomposing at least paramylon. The β-1,3-glucanase additionally exhibits the properties indicated below: (3) decomposition activity: the ratio of paramylon decomposition activity with respect to laminarin decomposition activity is 20% or higher; (4) optimum pH: 3.7-7.0; and (5) optimum temperature: 30-70° C.