Hemerocallis fulvs drying pretreatment method and color protecting equipment

A day lily and pretreatment technology, applied in the field of food processing, can solve the problems of unsightly black and green, the green surface of the vegetable strips cannot be effectively removed, and the drying time is short, and achieve the effects of convenient concentration adjustment, increased market value, and low cost

Active Publication Date: 2018-10-09
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of drying day lily with mechanical equipment, due to the short drying time and the lack of ultraviolet radiation, the green color on the surface of the vegetable strips cannot be effectively removed, showing an ugly black-green color, which is often called green strips. , consumers do not accept this dish, so there is no market

Method used

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  • Hemerocallis fulvs drying pretreatment method and color protecting equipment
  • Hemerocallis fulvs drying pretreatment method and color protecting equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Add 20 mL of peroxidase with an enzyme activity of 400,000 U / mL and 15 g of catalase with an enzyme activity of 500,000 U / mL to 1,000 mL of purified water to prepare a compound enzyme solution, soak 1 Kg of fresh day lily in the above compound enzyme solution , treated at room temperature for 70 minutes, removed and drained. Wrap 2.0g Maoyanberry powder with a particle size of 100 mesh and put it into the bottom of a PVC plastic bag, then put the above-mentioned day lily into the plastic bag, seal it immediately, and then store it in an incubator at 45°C for 4 hours to make the day lily The dish turns yellow, and then the daylily is added into the color protection equipment for soaking in ozone water with a concentration of 0.5mg / L. Then take it out and drain it for later use; or dry it.

[0031] Preferably, adopt day lily color protection equipment to carry out when soaking in ozone water, such as Figure 1-2 As shown, the color protection equipment includes an oxyge...

Embodiment 2

[0036] Add 400mL of peroxidase with an enzyme activity of 400,000U / mL and 300g of catalase with an enzyme activity of 500,000U / mL to 20,000 mL of purified water to prepare a compound enzyme solution, soak 20Kg of fresh day lily in the above compound enzyme solution , treat at room temperature for 60 minutes, remove and drain. Wrap 40.0g Maoyanberry powder with a particle size of 120 mesh and put it into the bottom of a PVC plastic bag, then put the above-mentioned day lily into the plastic bag, seal it immediately, and then store it in an incubator at 40°C for about 5 hours. The day lily turns yellow, and then the day lily is added to the color protection equipment and soaked in ozone water with a concentration of 0.4mg / L. Then take it out and drain it for later use; or dry it.

Embodiment 3

[0038] Add 400mL of peroxidase with an enzyme activity of 400,000U / mL and 300g of catalase with an enzyme activity of 500,000U / mL to 20,000 mL of purified water to prepare a compound enzyme solution, soak 20Kg of fresh day lily in the above compound enzyme solution , treated at room temperature for 90 minutes, removed and drained. Wrap 20.0g Maoyanberry powder with a particle size of 80 mesh and put it into the bottom of a PVC plastic bag, then put the above-mentioned day lily into the plastic bag, seal it immediately, and then store it in an incubator at 45°C for about 5 hours. The day lily turns yellow, and then the day lily is added to the color protection equipment and soaked in ozone water with a concentration of 0.45mg / L. Then take it out and drain it for later use; or dry it.

[0039] Adopt the method of the present invention to test, and gained main data record is as follows:

[0040]

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Abstract

The invention discloses a hemerocallis fulvs drying pretreatment method, and the method comprises the steps of choosing the raw materials, preparing a compound enzyme liquid, mixing, implementing enzymolysis, sealing, storing, and soaking in ozone water and the like. The invention provides the hemerocallis fulvs drying pretreatment method, the green color on the surface of hemerocallis fulvs fadesand the yellow color is shown before the hemerocallis fulvs is dried, and a foundation is laid for a dry product of the hemerocallis fulvs. In addition, the invention provides color protecting equipment, the color protecting equipment is specially used for soaking the hemerocallis fulvs in the ozone to protect the color, the cost is low, the practicality is strong, the concentration is convenientto regulate, and the production efficiency is improved.

Description

technical field [0001] The invention relates to a food processing method, in particular to a day lily drying pretreatment method. Background technique [0002] day lily ( Hemerocallis Fulvs ), also known as day lily, commonly known as lily flower, is a perennial herb of Liliaceae, and its edible part is a flower bud. It is a characteristic vegetable in my country. Daylily has high nutritional value, contains carbohydrates, proteins, vitamins, inorganic salts and various essential amino acids, and is delicious. It has the reputation of the king of vegetables and is deeply loved by consumers. [0003] The planting area of ​​daylily in Qidong County, Hunan Province is 160,000 mu, with an annual output of 240,000 tons of fresh vegetables and a total output value of more than 800 million yuan, accounting for 28.9% of the total output value of the county's planting industry. More than 400,000 vegetable farmers are engaged in the daylily industry. The per capita net income is mor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L19/00A23L5/20A23L5/41
CPCA23V2002/00A23L5/25A23L5/41A23L19/00A23V2200/048
Inventor 杨大伟
Owner HUNAN AGRICULTURAL UNIV
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