Jan 26, 2011 · The present invention is applicable to drying technical field, there is provided a vacuum freeze dried fruit,prising the steps: pre-freezing: the freezing process to be dried fruit; for five phases dried under vacuum. Fruit vacuum freeze-drying method of the present invention, the heating temperature gradient five-step cooling 1VxYV0HxXm3I Mar 21, 2022 · The color of freeze-dried strawberries was evaluated higher and in a much wider range of 3.7–6.7 than in these dried by “puffing” (3.8–4.3). Oszmiański J. Effect of drying methods with the application of vacuum microwaves on the bioactivepounds, color, and antioxidant activity of strawberry fruits. 9rJ5bT9QDdPQ Nov 12, 2021 · Freeze-drying removes 98% of the water in foods while dehydration removes about 80% giving freeze-dried products a much longer shelf-life. Freeze-dried food is flash frozen and then exposed to a vacuum, which causes all the water in it to vaporize. How do you make freeze dried fruit powder? oidyon2TIwc0 The first organ tissues were freeze-dried in 1890 and in 1932 a vacuum freeze-drying plant was built, but only after 1940 did it be an industrial process with the freeze-drying of blood plasma and penicillin. The freeze-drying method also depends on freezing temperature, time period, and initial solution concentration [48]. fmSW0ookGCCA
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