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Processing method for freeze-drying garlic slices by vacuum microwaves

A vacuum microwave and processing method technology, applied in food preservation, fruit and vegetable preservation, food science, etc., can solve the problems of high energy consumption, long time consumption, and restrictions on the industrial production of freeze-drying technology

Inactive Publication Date: 2012-05-02
NANJING UNIV OF FINANCE & ECONOMICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, each of these processes has different shortcomings. In terms of product quality, the quality of freeze-dried garlic slices is the closest to that of fresh garlic.
However, it takes a long time and consumes a lot of energy, which restricts the industrialized production of freeze-drying technology.

Method used

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  • Processing method for freeze-drying garlic slices by vacuum microwaves
  • Processing method for freeze-drying garlic slices by vacuum microwaves
  • Processing method for freeze-drying garlic slices by vacuum microwaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Material pretreatment: Pour the garlic on the garlic selection table, remove the moth-eaten and mildewed garlic, then use a cutting machine to cut the garlic cloves, pour the cut garlic cloves on the elevator, and send them to the sorting machine through the conveyor belt. The flap machine performs splitting. After the split garlic is dried off-line, the outer coat and transparent film of the garlic cloves are removed, and the unremoved garlic skins are manually picked out. Finally, cut into 2mm garlic slices with a multi-functional slicer.

[0027] (2) Pre-freezing: Spread 10Kg of material in the tray, 1Kg per tray, spread less material in the middle and more around the periphery. Lower the storage temperature of the freezer to -10°C in advance, and place the material in the freezer for 30 minutes. Then lower the storage temperature to -25°C to lower the material temperature to the eutectic point and keep it for 120 minutes.

[0028] (3) Warehousing and plate pl...

Embodiment 2

[0032] (1) Material pretreatment: Pour the garlic on the garlic selection table, remove the moth-eaten and mildewed garlic, then use a cutting machine to cut the garlic cloves, pour the cut garlic cloves on the elevator, and send them to the sorting machine through the conveyor belt. The flap machine performs splitting. After the split garlic is dried off-line, the outer coat and transparent film of the garlic cloves are removed, and the unremoved garlic skins are manually picked out. Finally, cut into 2mm garlic slices with a multi-functional slicer.

[0033] (2) Pre-freezing: spread 20Kg of materials in the material tray, 1Kg per tray, less material in the middle and more around the periphery. Lower the storage temperature of the freezer to -10°C in advance, and place the material in the freezer for 30 minutes. Then lower the storage temperature to -30°C to lower the material temperature to the eutectic point and keep it for 120 minutes.

[0034] (3) Warehousing and plate...

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Abstract

The invention discloses a processing method for freeze-drying garlic slices by vacuum microwaves, and belongs to the key technical field of garlic deep processing. The method comprises the following steps of: selecting materials, cutting off bases, separating flakes, peeling, and cutting into garlic slices with the thickness of about 2mm, filling 1Kg of garlic slices in a tray, keeping the materials in a freezer at the temperature of -10DEG C for 30 minutes, reducing the temperature to the temperature of between -25 and -30DEG C, and keeping the temperature for 120 minutes; after pre-freezing, filling the materials in a freeze-drying bin according to a fixed direction and serial numbers, and reducing the temperature of a cold trap to the temperature of between -35 and -40DEG C in advance;starting a vacuum pump, and emitting microwaves when the absolute pressure is 50-60Pa, wherein the microwaves are emitted by total 10 magnetrons averagely distributed on the left and right, the switch-on mode is intermittent circulation, and the magnetrons on the left and right are alternately switched on for 20-30 minutes; and drying for 4 hours, opening the bin, changing the tray, and changing the tray every 2 hours until the drying is finished. The garlic slices prepared by the drying process maintain good quality of common freeze-dried garlic slices, the time of the freeze-drying process is shortened, and energy consumption is reduced.

Description

1. Technical field [0001] The invention relates to a processing method for drying sliced ​​garlic, which belongs to the key technical field of deep processing of garlic. 2. Background technology [0002] Garlic is a plant of the genus Allium in the Liliaceae family. It is a widely used flavoring agent. Because the active substances of garlic, allicin and alliin, have the functions of sterilization, anti-inflammation, anti-tumor, and anti-oxidation, garlic can also be used in medicine and beauty. industry. my country is a big country that produces and exports garlic, and it has been exported to Japan, South Korea, and some European and American countries. Due to the short shelf life of fresh garlic, it is prone to rot and mildew. Secondly, in the export of garlic, garlic has high moisture and heavy weight, which increases the cost of transportation and restricts the export trade of garlic. Therefore, the dehydration and drying technology of garlic came into being. pregnancy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/024
Inventor 胡秋辉王钰单心心胡志超王海鸥方勇安辛欣赵立艳辛志宏
Owner NANJING UNIV OF FINANCE & ECONOMICS
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