abstract |
(57) [Problem] To provide an excellent method for stabilizing PQQ-dependent glucose dehydrogenase, which is mainly used as a raw material for a diagnostic drug, in powder or granule form. The PQQ-dependent glucose dehydrogenase includes one or more selected from the group consisting of (i) aspartic acid, glutamic acid, α-ketoglutaric acid, malic acid, α-ketogluconic acid, α-cyclodextrin, and salts thereof. A stable PQQ-dependent glucose dehydrogenase composition comprising two or more compounds and (ii) albumin and lyophilized. |