Vacuum microwave drying method for yellow gingers
A technology of vacuum microwave drying and turmeric slices, which is applied in the directions of drying solid materials, heating to dry solid materials, and non-heating to dry solid materials, etc. It can solve the problems of poor quality, achieve good turmeric color, short drying time, High economical effect
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Embodiment 1
[0024] 1. Material selection: Choose fresh, undamaged, and evenly sized turmeric.
[0025] 2. Pretreatment: Remove mud, peel, wash the selected turmeric, put it in a basket with holes to drain, slice it with a slicer, the thickness of the turmeric slice is 4±0.25mm, and weigh 1kg turmeric slice.
[0026] 3. Drying: Spread the turmeric slices evenly in a drying box, and place them in a vacuum microwave drying box for dehydration. The vacuum degree is -0.090±0.05Mpa when the microwave is running. Vacuum microwave drying goes through two stages. In the first stage, the microwave power is 1500W, and the microwave is heated continuously for 15 minutes; in the second stage, the microwave power is 1000W, and the microwave is continuously heated for 45 minutes. The final moisture content of the turmeric slices was measured to be 11.52%, L was 84.50, and b was +47.8.
[0027] 4. Packaging: Cool the turmeric slices after vacuum microwave drying to room temperature, pack them in PE pack...
Embodiment 2
[0030] 1. Material selection: Choose fresh, undamaged, and evenly sized turmeric.
[0031] 2. Pretreatment: Remove the mud, peel, and wash the selected turmeric, put it in a basket with holes to drain, and slice it with a slicer. The thickness of the ginger slices is 4±0.25mm, and weigh 1.6kg of ginger slices.
[0032] 3. Drying: Spread the turmeric slices evenly in a drying box, and place them in a vacuum microwave drying box for dehydration. The vacuum degree is -0.090±0.05Mpa when the microwave is running. Vacuum microwave drying goes through two stages. The microwave power of the first stage is 1500W, and the microwave is heated continuously for 15 minutes; the microwave power of the second stage is 1000W, and the microwave is continuously heated for 70 minutes. The final moisture content of the turmeric slices was measured to be 9.78%, L was 84.17, and b was +42.7.
[0033] 4. Packaging: Cool the turmeric slices after vacuum microwave drying to room temperature, pack the...
Embodiment 3
[0036] 1. Material selection: Choose fresh, undamaged, and evenly sized turmeric.
[0037] 2. Pretreatment: Remove the mud, peel, and wash the selected turmeric, put it in a basket with holes to drain, and slice it with a slicer. The thickness of the ginger slices is 4±0.25mm, and weigh 2kg of ginger slices.
[0038] 3. Drying: Spread the turmeric slices evenly in a drying box, and place them in a vacuum microwave drying box for dehydration. The vacuum degree is -0.090±0.05Mpa when the microwave is running. Vacuum microwave drying goes through two stages. The microwave power of the first stage is 1500W, and the microwave heating is continued for 45 minutes; the microwave power of the second stage is 1000W, and the microwave is continuously heated for 55 minutes. The final moisture content of the turmeric slices was measured to be 11.80%, L was 82.98, and b was +43.2.
[0039]4. Packaging: Cool the turmeric slices after vacuum microwave drying to room temperature, pack them in...
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