公开(公告)号：EP4400589A1

公开(公告)日：2024-07-17

申请号：EP22867379.4

申请日：2022-09-07

申请人： Godo Shusei Co., Ltd.

发明人： ODAKA, Rei ,  SANO, Ryoko ,  IWASAKI, Takumi ,  BABA, Masahiro ,  SABURI, Wataru ,  MORI, Haruhide

IPC分类号： C12N15/56 ,  A23C7/04 ,  A23C9/12 ,  A23C21/02 ,  A23C23/00 ,  A23L33/00 ,  C12N1/15 ,  C12N1/19 ,  C12N1/21 ,  C12N5/10 ,  C12N9/38 ,  C12N15/63

CPC分类号： A23C7/04 ,  A23C9/12 ,  A23C21/02 ,  A23C23/00 ,  A23L33/00 ,  C12N5/10 ,  C12N9/24 ,  C12N9/2468 ,  C12N15/63 ,  C12N15/80 ,  C12N15/81 ,  C12N15/74

摘要： Provided is a lactase preparation having an excellent lactose decomposing action in milk. A lactase according to an aspect of the present invention has, as lactase activity, any one of the following activities (1) to (6) or a combination of two or more thereof:
(1) when the lactase is added to cow's milk, an added amount of protein in the lactase at which a residual lactose concentration reaches 0.1% or less after 16 hours at 10°C is 15.1 mg/L or less;
(2) when the lactase is added to cow's milk, the added amount of protein in the lactase at which the residual lactose concentration reaches 0.01% or less after 16 hours at 10°C is 30.2 mg/L or less;
(3) when the lactase is added to cow's milk, the added amount of protein in the lactase at which the residual lactose concentration reaches 0.1% or less after 24 hours at 10°C is 10.1 mg/L or less;
(4) when the lactase is added to cow's milk, the added amount of protein in the lactase at which the residual lactose concentration reaches 0.01% or less after 24 hours at 10°C is 15.1 mg/L or less;
(5) when the lactase is added to cow's milk in an amount that makes a final concentration 1.4 LYU/ml, the residual lactose concentration reaches 0.1% or less after 24 hours at 10°C; and
(6) when the lactase is added to cow's milk in the amount that makes a final concentration 2.1 LYU/ml, the residual lactose concentration reaches 0.01% or less after 24 hours at 10°C.