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    Milk-based powder for pets
    2.
    发明授权
    Milk-based powder for pets 有权
    奶粉为宠物粉

    公开(公告)号：US06471999B2

    公开(公告)日：2002-10-29

    申请号：US09801264

    申请日：2001-03-07

    申请人： Francoise Couzy ,  Jean-Louis Leuba

    发明人： Francoise Couzy ,  Jean-Louis Leuba

    IPC分类号： A23K1165

    CPC分类号： A23C9/1206 ,  A23K10/16 ,  A23K20/189 ,  A23K50/40 ,  A23K50/42 ,  Y10S426/805

    摘要： A pet milk powder which, when reconstituted and fed to a pet as a nutritional milk, results in reduced gastrointestinal intolerance. This powder is a cow's milk powder that contains lactose and to which is added a lactase, preferably one that is active under acidic conditions, such as a &bgr;-galactosidase.

    摘要翻译： 一种宠物奶粉，当重新配制并喂养宠物作为营养乳时，导致胃肠道不耐受性降低。 该粉末是含有乳糖的奶牛奶粉末，其中加入乳糖酶，优选在酸性条件下具有活性的乳糖酶，例如β-半乳糖苷酶。

    Enzyme immobilization on mineral particles coated with chitosan
    4.
    发明授权
    Enzyme immobilization on mineral particles coated with chitosan 失效
    酶固定在用壳聚糖包被的矿物颗粒上

    公开(公告)号：US4918016A

    公开(公告)日：1990-04-17

    申请号：US436423

    申请日：1982-10-25

    申请人： Jean-Louis Leuba ,  Albert Renken ,  Erwin Flaschel

    发明人： Jean-Louis Leuba ,  Albert Renken ,  Erwin Flaschel

    IPC分类号： A23C9/12 ,  C12N11/10 ,  C12N11/14

    CPC分类号： C12N11/10 ,  A23C9/1206 ,  C12N11/14 ,  A23C2220/104

    摘要： Enzymatic catalysts are produced from mineral particles coated with chitosan. The enzymes may be directly absorbed onto the surface after a cross-linking treatment to stablize the coating or immobilized by chemical bonds after a treatment with a bifunctional reagent, for example with glutaraldehyde. The stability of the biocatalyst is advantageously increased by retreatment with a bifunctional reagent after immobilization of the enzyme. Enzymes sensitive to glutaraldehyde are fixed by a carbodiimide. The catalysts thus prepared are insoluble in aqueous solutions. The particles are rigid and incompressible and are suitable for use in fixed-bed and fluidized-bed reactors. The immobilization yield may reach 90% depending on the circumstances.

    摘要翻译： 酶催化剂由涂覆有壳聚糖的矿物颗粒制成。 在用双功能试剂（例如用戊二醛处理）之后，可以在交联处理之后将酶直接吸收到表面上以使涂层稳定或通过化学键固定。 生物催化剂的稳定性有利地通过在固定酶之后用双功能试剂再处理而增加。 对戊二醛敏感的酶由碳二亚胺固定。 如此制备的催化剂不溶于水溶液。 颗粒是刚性的和不可压缩的并且适用于固定床和流化床反应器。 根据情况，固定产量可达到90％。

    Enzymes immobilized on chitosan
    5.
    发明授权
    Enzymes immobilized on chitosan 失效
    酶固定在壳聚糖上

    公开(公告)号：US4094743A

    公开(公告)日：1978-06-13

    申请号：US672790

    申请日：1976-04-01

    申请人： Jean-Louis Leuba

    发明人： Jean-Louis Leuba

    IPC分类号： C08B37/08 ,  C12N11/00 ,  C12N11/10 ,  C07G7/02

    CPC分类号： C08B37/003 ,  C12N11/00 ,  C12N11/10

    摘要： An enzymatically active product insoluble in aqueous medium is prepared by treating chitosan as an inert support with a dialdehyde, after which an enzyme is fixed to the support thus treated. The chitosan may be in powder-form or in flake-form, for example obtained by fragmenting a film of anhydrous chitosan. The enzymatically active product insoluble in aqueous medium may be treated with a compound containing an amino group and/or with a reducing reagent. The product may be freeze dried optionally in the presence of twice its weight of mannitol.

    摘要翻译： 通过用二醛处理壳聚糖作为惰性载体来制备不溶于水性介质的酶活性产物，之后将酶固定在如此处理的载体上。 壳聚糖可以是粉末形式或片状，例如通过破碎无水壳聚糖膜而获得的。 可以用含有氨基的化合物和/或还原剂处理不溶于水性介质的酶活性产物。 产物可以任选在两倍重量的甘露醇存在下冷冻干燥。