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    • 8. 发明授权
    • Process for drying foods under reduced pressure
    • 在减压下干燥食物的方法
    • US4520574A
    • 1985-06-04
    • US554862
    • 1983-11-23
    • Ko SugisawaYasushi MatsumuraKazumitsu Taga
    • Ko SugisawaYasushi MatsumuraKazumitsu Taga
    • A23L3/015A23L3/44A23L7/196F26B5/04F26B5/06F25B19/00
    • F26B5/06A23L3/0155A23L3/44A23L7/196F26B5/04
    • A process for drying a food under a reduced pressure is provided for the preparation of a dried food which may be rehydrated to the original condition in a very short time to have pleasant taste and texture substantially comparable to an untreated food. The process is characterized by the step of placing the food to be dried in an environment of reduced pressure low enough to vaporize a portion of the water contained in the food and to freeze the balance of water by the radiation of heat by the vaporization, and the step of heating to dry the food at relatively low temperature under the reduced pressure. A further characteristic feature of the process of the invention is the sudden or abrupt drop of the pressure surrounding the food at the initial stage, whereby the food is puffed somewhat by the action of the vigorously vaporizing water to a dried state with a substantially hollow core portion and a denser surface layer.
    • 提供了一种在减压下干燥食物的方法,用于制备可在非常短的时间内再水合至原始状态的干燥食品,以使其具有与未经处理的食物基本相当的令人愉快的味道和质地。 该方法的特征在于将待干燥的食物放置在足够低的压力的环境中以蒸发食物中包含的一部分水并通过蒸发而通过热辐射来冷冻水的平衡, 在减压下在相对较低的温度下加热干燥食物的步骤。 本发明方法的进一步特征是初始阶段食物周围压力突然或突然下降,由此大部分空心核心处于干燥状态下,通过剧烈蒸发水的作用使食物膨胀。 部分和更致密的表面层。