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

Inactive Publication Date: 2019-06-11
HEZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for vacuum microwave drying of turmeric slices, the method does not have sulfur fumigation, and maintains the color of turmeric, effectively reduces the nutrient loss of turmeric, improves production efficiency, and solves the problem of nutrition in the drying process of turmeric slices. Loss and poor quality and other problems, realize the deep processing and comprehensive utilization of turmeric raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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PUM

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Abstract

The invention discloses a vacuum microwave drying method for yellow gingers. The vacuum microwave drying method comprises the following steps of: selecting the yellow gingers; pre-treating the yellowgingers and drying the yellow gingers; the pretreatment step comprises the following steps of: removing mud from the selected yellow gingers; removing the peels of the yellow gingers; washing the yellow gingers; draining the yellow gingers; slicing the yellow gingers by using a slicing machine to make sure that the thickness of the yellow ginger slices is 4+ / -0.25 mm, and weighing a certain amountof yellow ginger slices; in the drying step, the yellow ginger slices are dried in two stages by adopting vacuum microwave drying; the vacuum degree in each stage is -0.090+ / -0.05 Mpa; the microwavepower in the first stage is 1500 W; the continuous heating time of the microwave is controlled to be within 0-60 min; the microwave power in the second stage is 1000 W; the continuous heating time ofthe microwave is controlled to be within 0-90 min so that the final water content of the yellow ginger slices is reduced to 12% or lower, and yellow ginger slices which are relatively good in color, appearance and quality can be obtained. The method disclosed by the invention can keep the original color of the yellow ginger slices, effectively reduces nutrient losses of the yellow ginger slices, is also high in production efficiency and low in cost, realizes deep processing and comprehensive utilization of yellow ginger raw materials and achieves good economic benefits.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a method for vacuum microwave drying of turmeric slices. Background technique [0002] Yellow ginger, scientific name Dioscorea zingiberensis C.H.Wright, is a plant of the genus Dioscorea zingiberensis, and is a unique wild plant resource in my country. The diosgenin contained in its rhizome (diosgenin), that is, saponin, is an important raw material of steroid drugs, and various steroid drugs can be synthesized by modifying the "skeleton" provided by it. At present, there are more than 2,000 kinds of steroid compounds synthesized, including more than 200 kinds of commonly used drugs, and more than 50 kinds of large-scale production. Because diosgenin mainly comes from turmeric, so turmeric has the reputation of medicinal "gold". [0003] Turmeric, with its pungent taste and unique strong ginger smell, has the effect of removing fishy smell and increasing ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/04F26B3/347
Inventor 唐小闲段振华汤泉刘艳伍淑婕梁冬梅邱培生蔡文和黎小椿
Owner HEZHOU UNIV
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