Modified wheat glutens and use thereof in fabrication of films
    1.
    发明授权
    Modified wheat glutens and use thereof in fabrication of films 失效
    改良的小麦面筋及其在薄膜制造中的应用

    公开(公告)号:US5965708A

    公开(公告)日:1999-10-12

    申请号:US814219

    申请日:1997-03-11

    CPC分类号: A23J3/18 A23P20/20

    摘要: Gluten protein-based biodegradable or edible films are produced using aqueous, essentially alcohol-free casting dispersions containing modified protein (preferably wheat gluten protein) and a plasticizer. The modified protein is prepared by treating purified naturally occurring wheat protein with a reducing agent (e.g., sodium metabisulfite) in order to reduce the average molecular weight of the wheat protein and to cleave disulfide bonds therein. Such modified wheat gluten protein lowers the viscosity and allows increased solid contents in the casting dispersions, allowing fabrication of improved films using continuous casting techniques and without use of organic solvents.

    摘要翻译: 使用含有改性蛋白质(优选小麦面筋蛋白质)和增塑剂的水性基本上无醇的浇铸分散体来生产基于蛋白质的可生物降解或可食用的薄膜。 通过用还原剂(例如偏亚硫酸氢钠)处理纯化的天然存在的小麦蛋白来制备修饰的蛋白质,以便降低小麦蛋白质的平均分子量并在其中切割二硫键。 这种改性的小麦谷蛋白降低了粘度,并且允许在铸塑分散体中增加固体含量,允许使用连续铸造技术制造改进的膜并且不使用有机溶剂。

    Modified wheat glutens and use thereof in fabrication of films
    2.
    发明授权
    Modified wheat glutens and use thereof in fabrication of films 失效
    改良的小麦面筋及其在薄膜制造中的应用

    公开(公告)号:US5977312A

    公开(公告)日:1999-11-02

    申请号:US962151

    申请日:1997-10-31

    CPC分类号: A23J3/18 A23P20/20

    摘要: Wheat gluten protein-based biodegradable or edible films are produced using aqueous, essentially alcohol-free casting dispersions containing modified wheat protein and a plasticizer. The modified wheat protein is prepared by treating purified naturally occurring wheat protein with a reducing agent (e.g., sodium metabisulfite) in order to reduce the average molecular weight of the wheat protein and to cleave disulfide bonds therein. Such modified wheat gluten protein lowers the viscosity and allows increased solid contents in the casting dispersions, allowing fabrication of improved films.

    摘要翻译: 使用含有改性小麦蛋白质和增塑剂的水性基本上无醇的浇铸分散体来生产小麦面筋蛋白质的可生物降解或可食用的薄膜。 通过用还原剂(例如偏亚硫酸氢钠)处理纯化的天然存在的小麦蛋白质来制备修饰的小麦蛋白质,以便降低小麦蛋白质的平均分子量并在其中切割二硫键。 这种改性小麦谷蛋白降低了粘度,并允许在铸塑分散体中增加固体含量,从而制备改进的膜。

    Alcohol-free wet extraction of gluten dough into gliadin and glutenin
    4.
    发明授权
    Alcohol-free wet extraction of gluten dough into gliadin and glutenin 失效
    无酒精将麸质面团湿法提取成麦醇溶蛋白和麦谷蛋白

    公开(公告)号:US5610277A

    公开(公告)日:1997-03-11

    申请号:US526078

    申请日:1995-09-11

    IPC分类号: C07K1/30 C07K14/415 C07K2/00

    CPC分类号: C07K14/415

    摘要: An improved alcohol-free method for fractionating gluten into gliadin and glutenin fractions is provided where an acidic dispersion of gluten is formed with a reducing agent (e.g., sodium metabisulfite) operable for breaking disulfide bonds in the gluten protein. Thereafter, the pH of the dispersion is raised to cause glutenin to precipitate while leaving gliadin suspended in the dispersion. The respective fractions can then be separated by decanting or centrifugation. In preferred processing, the dispersion is reacidified prior to separation in order to achieve a higher degree of separation of the glutenin and gliadin.

    摘要翻译: 提供了一种用于将谷蛋白分级成麦醇溶蛋白和谷蛋白级分的改进的无酒精方法,其中用可破坏谷蛋白中的二硫键的还原剂(例如偏亚硫酸氢钠)形成麸质的酸性分散体。 此后,分散液的pH升高,使麦谷蛋白沉淀,同时留下悬浮在分散体中的麦醇溶蛋白。 然后可以通过倾析或离心分离各个级分。 在优选的处理中,在分离之前将分散体再酸化以达到更高程度的谷蛋白和麦醇溶蛋白的分离。

    Biodegradable grain protein-based solid articles and forming methods
    5.
    发明授权
    Biodegradable grain protein-based solid articles and forming methods 失效
    可生物降解的谷物蛋白质固体制品和成型方法

    公开(公告)号:US5665152A

    公开(公告)日:1997-09-09

    申请号:US745106

    申请日:1996-11-07

    摘要: A method of forming solid, non-edible biodegradable, grain protein-based articles is provided wherein a grain protein formulation is heated to a maximum temperature of up to about 80.degree. C. to create a substantially homogeneous and flowable mixture which can be formed into biodegradable articles. The formulation includes from about 20-85% by weight of grain protein, from about 5-75% by weight starch, up to about 14% by weight water, from about 10-40% by weight plasticizer, and at least about 0.01 by weight of a reducing agent such as sodium bisulfite for cleaving disulfide bonds present in the grain protein. Optional ingredients such as fillers, fiber, lubricant/mold release agents and colorants can also be used. The formulations can be processed in extrusion or injection molding equipment to create solid articles.

    摘要翻译: 提供了一种形成固体,不可食用的可生物降解的谷物蛋白质制品的方法,其中将谷物蛋白质制剂加热至最高约80℃的最高温度以产生基本上均匀且可流动的混合物,其可形成 可生物降解物品。 该制剂包括约20-85重量%的谷物蛋白质,约5-75重量%的淀粉,至多约14重量%的水,约10-40重量%的增塑剂和至少约0.01个 重量的还原剂如亚硫酸氢钠,用于切割存在于谷物蛋白质中的二硫键。 还可以使用任选的成分,例如填料,纤维,润滑剂/脱模剂和着色剂。 制剂可以在挤出或注塑设备中加工以制备固体制品。