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    • 3. 发明授权
    • Yeast-leavened refrigerated dough products
    • 酵母冷冻面团产品
    • US5939109A
    • 1999-08-17
    • US799332
    • 1997-02-13
    • David J. DominguesWilliam A. AtwellWilliam P. Pilacinski
    • David J. DominguesWilliam A. AtwellWilliam P. Pilacinski
    • A21D6/00A21D8/04A21D10/00A21D10/02C12N1/18
    • A21D10/025A21D10/00A21D6/001A21D8/047C12N1/18
    • The present invention provides refrigeratable yeast-leavened dough compositions and methods of making such doughs. In a first embodiment, a dough composition of the invention is made by rehydrating dried yeast at chilled temperatures, which causes selective lysing (a loss in the selectivity of the yeast plasma membrane). Such a dough composition exhibits a cold sensitivity in that the yeast is capable of leavening the dough at elevated temperatures, but becomes inactive at refrigeration temperatures. In another embodiment, the dough composition and the strain of yeast used therein are chosen to limit the total leavening action of the yeast by controlling the amount of substrate in the dough fermentable by the yeast. In a third embodiment, a dough comprises a mixture of flour, water and a mutant yeast which is low temperature sensitive. Such an "lts" yeast is active at elevated temperatures, but becomes substantially inactive at refrigeration temperatures. Dough compositions made in accordance with any of these embodiments of the invention are capable of being leavened at elevated temperatures, yet stored in a sealed container at refrigeration temperatures for extended periods of time.
    • 本发明提供了制冷酵母发酵生面团组合物和制造这种面团的方法。 在第一个实施方案中,本发明的生面团组合物是通过将干燥的酵母在冷却的温度下进行再水合而制成的,这导致选择性裂解(酵母质膜的选择性损失)。 这样的面团组合物显示出冷的敏感性,因为酵母能够在升高的温度下发酵面团,但在冷藏温度下变得不活跃。 在另一个实施方案中,选择生面团组合物和其中使用的酵母菌株以通过控制由酵母发酵的面团中的底物的量来限制酵母的总膨胀作用。 在第三实施方案中,面团包含面粉,水和低温敏感的突变酵母的混合物。 这样的“lts”酵母在升高的温度下是活性的,但在冷藏温度下变得基本上无活性。 根据本发明的任何这些实施方案制备的面团组合物能够在升高的温度下发酵,并且在冷藏温度下长时间储存​​在密封容器中。