| 摘要 |
PROBLEM TO BE SOLVED: To provide a new method for efficiently and industrially producing an excellent new freeze-dried food having immediately dissolvable properties by a simple operation in high yield. SOLUTION: An amylolytic enzyme and a cytocidal enzyme is allowed to act on a pasted starch-containing vegetable or the one with added water, to carry out an enzyme treatment under a temperature condition at which the enzyme is not deactivated. The resultant mixture is heated to the temperature condition at which the enzyme is deactivated, and the heated product is cooled and packed in a molded container. The packed product is subjected to preliminary freezing, and the preliminary frozen product is subjected to a vacuum freeze drying to provide the objective nonconventional freeze-dried food of the vegetable paste, having immediately dissolvable properties. A granular freeze-dried food is obtained by carrying out pulverization, chopping or the like of the product before or after the vacuum freeze-drying so as to correspond to the use. Aa raw material for an instant soup corresponding to the use is obtained by adding adjuvant material containing small amount of the starch (e.g. a cream, a powdered fat, a seasoning, common salt, sugar, a dextrin and a lactose) to the material in the midway of the production method, and mixing the added product. As a result, the freeze-dried food of the enzyme-treated vegetable paste, and a mixture consisting essentially thereof, and having immediately dissolvable properties can be economically and industrially produced. |
