Sterilization method for fresh-cut vegetables and fruits in electromagnetic field
An electromagnetic field, fresh-cut technology, applied in the direction of heating and preserving fruits/vegetables, etc., can solve the problems of reducing acceptability, increasing the temperature of fresh-cutting fruits and vegetables, destroying the quality of fresh-cutting fruits and vegetables, etc., shortening processing time, improving quality, and improving The effect of germicidal efficiency
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Embodiment 1
[0017] Fresh-cut cantaloupe is first placed in the container, and then the container is placed in the electromagnetic field. First, 700W continuous microwave was used to treat fresh-cut cantaloupe. When the temperature of fresh-cut cantaloupe reached 53°C, pulse microwave was used to treat fresh-cut cantaloupe 60 times; the working cycle of pulse microwave was 3s, and the duration of microwave in the cycle was 1s. After electromagnetic field treatment, the total number of bacterial colonies in fresh-cut Hami melon increased from 21×10 3 The cfu / g dropped to 70cfu / g, and the sterilization rate was 99.7%.
Embodiment 2
[0019] The fresh-cut lotus root is first placed in the container, and then the container is placed into the electromagnetic field. Firstly, the fresh-cut lotus root was treated with 1000W continuous microwave. When the temperature of the fresh-cut lotus root reached 55°C, the fresh-cut lotus root was treated with pulsed microwave for 45 times. The time is 1s. After electromagnetic field treatment, the total number of bacterial colonies in fresh-cut lotus root increased from 19×10 4 cfu / g drops to 17×10 2 cfu / g, the total sterilization rate is 99.1%.
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