Novel auerobasidium sp. microorganisms, method for obtaining the same
and method for preparing erythritol with the same
    1.
    发明授权
    Novel auerobasidium sp. microorganisms, method for obtaining the same and method for preparing erythritol with the same 失效
    小穗科 微生物,获得该微生物的方法及其制备赤藓糖醇的方法

    公开(公告)号:US4939091A

    公开(公告)日:1990-07-03

    申请号:US88858

    申请日:1987-08-24

    IPC分类号: C12N1/02 C12P7/18

    摘要: Biologically pure culture of Aureobasidium sp. SN-124A strain (FERM BP-1429) and artificial mutants thereof according to the present invention show the properties of forming and accumulating erythritol in a culture solution, when aerobically cultured on a liquid culture medium containing an assimilable carbon source and an assimilable nitrogen source, and are useful for the preparation of erythritol by fermentation of sugars. A method for preparing erythritol by fermentation of sugars according to the present invention comprises inoculating microorganism selected from the group consisting of Aureobasidium sp. SN-124A strain (FERM BP-1429) and mutants thereof on a liquid culture medium of pH 4 to 9 containing an assimilable carbon source and an assimilable nitrogen source, and aerobically culturing them at a temperature of 30.degree. to 38.degree. C. to form and accumulate erythritol in said culture medium for collection.

    摘要翻译: 生物纯培养的Aureobasidium sp。 根据本发明的SN-124A菌株(FERM BP-1429)及其人造突变体,当在含有可同化的碳源和可同化的氮源的液体培养基上进行有氧培养时,显示培养液中形成和积累赤藓糖醇的性质 ,可用于通过发酵糖制备赤藓糖醇。 通过根据本发明的糖的发酵制备赤藓糖醇的方法包括接种微生物,其选自由Aureobasidium sp。 SN-124A菌株(FERM BP-1429)及其在pH4〜9的液体培养基上的突变体,其含有可同化的碳源和可吸收的氮源,并在30℃至38℃的温度下进行有氧培养, 在所述培养基中形成并积累赤藓糖醇用于收集。

    Erythrose reductase, its cDNA and cell which the cDNA express
    3.
    发明授权
    Erythrose reductase, its cDNA and cell which the cDNA express 失效
    红细胞还原酶,其cDNA和cDNA表达的细胞

    公开(公告)号:US06960458B2

    公开(公告)日:2005-11-01

    申请号:US10040416

    申请日:2002-01-09

    摘要: Protein having an erythrose reductase activity; a DNA encoding the protein; a cell to which a DNA has been transferred in a manner such that the DNA is capable of expressing an erythrose reductases type III, II or I the DNA encodes; and a method for producing erythritol, comprising acting the erythrose reductases type III, II or I or a cell to which erythrose reductases type III, II or I has been transferred in a manner capable of expressing the erythrose reductases type III, II or I on D-erythrose and harvesting the produced erythritol.

    摘要翻译: 具有红葡萄糖还原酶活性的蛋白质; 编码蛋白质的DNA; 以使得DNA能够表达DNA编码的III型,II型或I型红血球还原酶的方式转移DNA的细胞; 以及制备赤藓糖醇的方法,其包括以III,II或I型赤藓红还原酶或以能够将III型,II型或I型赤藓糖还原酶表达的方式转移到其中的III型,II型或I型赤藓红还原酶的细胞, D-赤藓糖并收获所生产的赤藓糖醇。

    Process for isomerization of compound of aldose structure into compound
of ketose structure, and isomerization agent or accelerator used therin
    5.
    发明授权
    Process for isomerization of compound of aldose structure into compound of ketose structure, and isomerization agent or accelerator used therin 失效
    醛糖结构化合物异构化为酮糖结构化合物的方法,异构化剂或促进剂

    公开(公告)号:US5877311A

    公开(公告)日:1999-03-02

    申请号:US888285

    申请日:1997-07-03

    IPC分类号: C07H1/00 C01G17/00

    CPC分类号: C07H1/00

    摘要: A process is provided which comprises isomerizing a compound having a ketose structure by the use of or in the presence of an organogermanium compound having a structural portion represented by formula (I): ##STR1## Due to the use or presence of the organogermanium compound, the process is free from the problems of the prior art, and is capable of isomerizing a compound having an aldose structure into a compound having a ketose structure at a high isomerization ratio without requiring any special apparatus or any complicated operation.

    摘要翻译: 提供了一种方法,其包括通过使用或在具有由式(I)表示的结构部分的有机锗化合物的存在下异构化具有酮糖结构的化合物:(I)由于使用或存在 有机锗化合物,该方法没有现有技术的问题,并且能够将具有醛糖结构的化合物异构化成具有高异构化比例的酮糖结构的化合物,而不需要任何特殊的装置或任何复杂的操作。

    Process for isomerization of compound of aldose structure into compound
of ketose structure, and isomerization agent or accelerator used therein
    6.
    发明授权
    Process for isomerization of compound of aldose structure into compound of ketose structure, and isomerization agent or accelerator used therein 失效
    醛糖结构化合物异构化为酮糖结构化合物的方法及其中使用的异构化剂或促进剂

    公开(公告)号:US5679787A

    公开(公告)日:1997-10-21

    申请号:US295739

    申请日:1994-10-25

    CPC分类号: C07F7/30 C07H3/02

    摘要: A process is provided which comprises isomerizing a compound having a ketose structure by the use of or in the presence of an organogermanium compound having a structural portion represented by formula (I): ##STR1## Due to the use or presence of the organogermanium compound, the process is free from the problems of the prior art, and is capable of isomerizing a compound having an aldose structure into a compound having a ketose structure at a high isomerization ratio without requiring any special apparatus or any complicated operation.

    摘要翻译: PCT No.PCT / JP93 / 01896 Sec。 371日期:1994年10月25日 102(e)日期1994年10月25日PCT 1993年12月27日PCT公布。 公开号WO94 / 14826 日期1994年7月7日提供了一种方法,其包括通过使用或在具有由式(I)表示的结构部分的有机锗化合物存在下异构化具有酮糖结构的化合物: 使用或存在有机锗化合物,该方法不存在现有技术的问题,并且能够将具有醛糖结构的化合物异构化成具有高异构化比例的酮糖结构的化合物,而不需要任何特殊的装置或任何 复杂的操作。