发明名称 |
CRYSTALLINE 1-KESTOSE AND PROCESS FOR PREPARING THE SAME |
摘要 |
58 A process for producing crystal 1-kestose wherein granular crystal 1-kestose in the form of large crystals can be produced at a high yield is disclosed. A high-purity solution of 1-kestose is concentrated to a Brix of 75 or higher; either seed crystals are added, or the solution is vacuum-concentrated to generate microcrystals for use as nuclei; then, a crystal growing step by vacuum-concentration and a microcrystal dissolving step for redissolving microcrystals which have formed in the concentrate are repeated at least twice each. Alternatively, a high-purity solution of 1-kestose is concentrated to a Brix of 80 or higher; either seed crystals are added, or the solution is allowed to initiate crystallization; after crystals are allowed to grow, a cooling step where the temperature is lowered by 5 to 20.degree.C from the previous step and a crystal growing step where the concentrate is maintained at the temperature to allow the crystals to grow are repeated at least twice each. Also, an enzyme for producing 1-kestose efficiently from sucrose is disclosed.
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申请公布号 |
CA2243072(A1) |
申请公布日期 |
1997.06.19 |
申请号 |
CA19962243072 |
申请日期 |
1996.12.11 |
申请人 |
MEIJI SEIKA KAISHA, LTD. |
发明人 |
NAKADA, YUKO;NAKAMURA, HIROFUMI;NISHIZAWA, KOJI;KAWAKAMI, TAKASHI;HIRAYAMA, MASAO;MATSUMOTO, HITOSHI;ADACHI, TAKASHI |
分类号 |
C07H3/06;C12P19/18;(IPC1-7):C12N9/10 |
主分类号 |
C07H3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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