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Preparation method of dried day lily

A day lily drying technology, which is applied in the directions of heating and preserving fruits/vegetables and dehydrating fruits/vegetables, etc., can solve the problems of being easily affected by rainy weather, the color of day lily is dark yellow, and the sulfur content of products exceeds the standard. Achieve the effect of balancing moisture, golden yellow and green color, and improving stability

Active Publication Date: 2015-06-03
渠县琦鑫源花卉苗木开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of solar energy fixation is simple and low in cost, but it is easily affected by rainy weather; although the speed of steam fixation is fast, the effect of fixation is uneven, and carbon dioxide is emitted into the atmosphere, which is not conducive to ecological protection; the energy consumption of drug fixation is low, but it is easy to make the product The sulfur content exceeds the standard, which does not meet the requirements for safe use
Moreover, these commonly used methods dry the daylily color dark yellow, the dried strips are soft, and the nutritional loss is greater during the drying process.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Select plump, green and slightly yellow fresh yellow flower buds that are harvested within 4 hours, remove the flower stalks of the day lily, and rinse them with running water.

[0031] (2) Drain the rinsed day lily with a vibrating dehydration sieve until there is no water dripping, and spread it evenly on a special microwave tray with a thickness of 4cm, and cover it with a layer of insulating cloth.

[0032] (3) Push the material tray into the 2450MHz microwave heating equipment to de-enzyme the daylily. The de-enzyme conditions are: microwave heating power 20kW, microwave action time 80s, and then use a centrifugal blower with a wind speed of 3m / s to cool down to room temperature .

[0033] (4) Push the daylily that has been heated by microwave and cooled to normal temperature into 2450MHz microwave drying and dehydration equipment for a dehydration treatment. A centrifugal blower with a wind speed of 3m / s is used to cool down to room temperature.

[0034] (5)...

Embodiment 2

[0038] (1) Select plump, green and slightly yellow fresh yellow flower buds that are harvested within 4 hours, remove the flower stalks of the day lily, and rinse them with running water.

[0039] (2) Drain the rinsed day lily with a vibrating dehydration sieve until there is no water dripping, and spread it evenly on a special microwave tray with a thickness of 5 cm, and cover it with a layer of insulating cloth.

[0040] (3) Push the material tray into the 2450MHz microwave heating equipment to de-enzyme the daylily. The de-enzyme conditions are: microwave heating power 20kW, microwave action time 100s, and then use a centrifugal blower with a wind speed of 5m / s to cool down to room temperature .

[0041] (4) Push the day lily that has been heated by microwave and cooled to normal temperature into 2450MHz microwave drying and dehydration equipment for a dehydration treatment. A centrifugal blower with a wind speed of 5m / s is used to cool down to room temperature.

[0042] ...

Embodiment 3

[0046] (1) Select plump, green and slightly yellow fresh yellow flower buds that are harvested within 4 hours, remove the flower stalks of the day lily, and rinse them with running water.

[0047] (2) Drain the rinsed day lily with a vibrating dehydration sieve until there is no water dripping, and spread it evenly on a special microwave tray with a thickness of 4.5 cm, and cover it with a layer of insulating cloth.

[0048] (3) Push the material tray into the 2450MHz microwave heating equipment to de-enzyme the daylily. The de-enzyme conditions are: microwave heating power 20kW, microwave action time 90s, and then use a centrifugal blower with a wind speed of 4m / s to cool down to room temperature .

[0049] (4) Push the daylily that has been heated by microwave and cooled to normal temperature into 2450MHz microwave drying and dehydration equipment for one dehydration treatment. A centrifugal blower with a wind speed of 4m / s is used to cool down to room temperature.

[0050...

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PUM

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Abstract

The invention belongs to the field of food processing, and particularly relates to a preparation method of dried day lily. The dried day lily is prepared by the working procedures of with fresh day lily buds as raw materials, destemming, rinsing by running water, leaching, putting into dishes, carrying out microwave heating for deactivating enzymes, cooling, carrying out once microwave drying for dehydrating, cooling, carrying out secondary microwave drying for dehydrating, cooling, carrying out three-segment far infrared rotary baking, and packaging. According to the invention, microwave heating for deactivation of enzymes for three times, dehydration and three-segment far infrared rotary baking and drying modes are adopted, the day lily is subjected to enzyme deactivation, dehydration and drying, and sterilization, and the prepared dried day lily can be directly eaten or can be eaten after rehydrated. The method provided by the invention is beneficial to preservation of the dried day lily, also keeps the color, fragrance, flavor and shape of the day lily well, and effectively solves the problem of nutritional ingredient loss in the processes of deactivating enzymes and drying. The dried day lily prepared by the method provided by the invention is straight and uniform in shape, is golden yellow and green in color, and can be preserved for 18 months with perfect packages under the normal temperature condition.

Description

technical field [0001] The invention belongs to the field of food processing, in particular to a preparation method of dried day lily. Background technique [0002] Yellow flower is the flower bud of the perennial herbaceous perennial plant of Liliaceae Daylily. It is rich in nutritional value, rich in protein, minerals and vitamins, especially carotene, which is the crown of vegetables. It also contains a variety of substances that the human body cannot synthesize by itself amino acid. Since ancient times, it has the reputation of "treasures on the table" and "view as a famous flower, use as a good medicine, and eat as a delicacy". At present, the yellow flower products on the market mainly include refrigerated fresh-keeping products and dehydrated dried products, among which dehydrated dried day lily is the main one. "A Method for Cold Storage and Preservation of Day Lily" (CN1875726A) discloses a method for cold storage and preservation of day lily. Refrigerate at ~4°C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/02A23B7/01
Inventor 王明王琪源
Owner 渠县琦鑫源花卉苗木开发有限公司
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