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Preservation method for prolonging shelf life of hypsizygus marmoreus by activating photodynamic force through high-voltage

A high-voltage electrostatic and fresh-keeping method technology, which is applied in the fields of fruit and vegetable preservation, fruit/vegetable preservation through radiation/electrical treatment, food preservation, etc., can solve the problems of shortened shelf life, shortened fresh-keeping life, and adverse effects of fresh-keeping, etc. Sterilization cost, extended shelf life, low price effect

Pending Publication Date: 2022-04-08
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, seafood mushrooms face several major problems after harvesting: 1. Harvested seafood mushrooms are still undergoing strong respiration, resulting in accelerated decomposition reactions in their tissues and rapid loss of nutrients, thus greatly reducing the preservation life
3. During the metabolic process of seafood mushrooms, ethylene will be continuously released. Ethylene will promote the continuous maturation of the fruiting bodies of seafood mushrooms and continuously increase their release, resulting in a greatly shortened shelf life and adverse effects on their freshness.
4. Microorganisms on the surface of seafood mushrooms are still growing after they are harvested, and they are very susceptible to infection by pathogenic bacteria, causing them to deteriorate.

Method used

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  • Preservation method for prolonging shelf life of hypsizygus marmoreus by activating photodynamic force through high-voltage
  • Preservation method for prolonging shelf life of hypsizygus marmoreus by activating photodynamic force through high-voltage
  • Preservation method for prolonging shelf life of hypsizygus marmoreus by activating photodynamic force through high-voltage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Effects of Curcumin Solutions with Different Concentrations on the Sterilization Effect of Seafood Mushrooms

[0039] A. Under the environmental conditions of 28°C, weigh the quantitative seafood mushrooms as the experimental group and the blank control group; dilute curcumin with sterile water, and prepare curcumin solutions with final concentrations of 10, 20, 40 and 50 μmol / L respectively , and then spray each experimental group seafood mushroom with curcumin solution of 10, 20, 40 and 50 μmol / L respectively, and the blank control group is not treated;

[0040] B. Under the environmental condition of 28°C, the seafood mushrooms in the experimental group were treated with 300Kv / m high-voltage static electricity for 60 minutes and irradiated with LED light source for 60 minutes at the same time, and the blank control group was not treated. Set up two parallels for each group.

[0041] Effect verification: Bacterial plate counting method was used to calculate the total n...

Embodiment 2

[0043] Effects of Different Electric Field Intensities on the Preservation of Seafood Mushrooms

[0044] A. Under the condition of 28 ℃, weigh the quantitative seafood mushrooms as the experimental group and the blank control group; The control group received no treatment.

[0045] B. Under the condition of 28°C, the seafood mushrooms in the experimental group were treated with high-voltage electrostatic technology with electric field strength of 110Kv / m, 220Kv / m, 300Kv / m, and 360Kv / m for 60 minutes. At the same time, the seafood mushrooms in the experimental group were irradiated with LED light source for 60 minutes, and the blank control group was not treated. Set up two parallels for each group.

[0046] Effect verification: The total number of colonies on the surface of seafood mushrooms preserved by this technology, the growth of mold, yeast and coliform bacteria have been inhibited, and the seafood mushrooms treated with 110Kv / m and 220Kv / m have a relatively smooth app...

Embodiment 3

[0048] Influence of different irradiation time of LED visible light on the sterilization effect of seafood mushroom

[0049] A. Under the environmental conditions of 28 ℃, weigh the quantitative seafood mushroom as the experimental group and the blank control group; use the curcumin diluted with sterile water to prepare a 40 μmol / L curcumin solution, and then use a 40 μmol / L curcumin solution The seafood mushrooms in the experimental group were sprayed, and the blank control group was not treated;

[0050] B. Under the environmental conditions of 28°C, the seafood mushrooms in the experimental group were treated with an electric field strength of 300Kv / m for 60 minutes, and irradiated with LED light sources for 30, 60, 90 and 120 minutes respectively, and the blank control group was not treated. Set up two parallels for each group.

[0051] Effect verification: Bacterial plate counting method was used to calculate the total number of colonies of the above-mentioned seafood mu...

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Abstract

The invention provides a fresh-keeping method for prolonging the shelf life of hypsizygus marmoreus by activating photodynamic force through high-voltage static electricity. The fresh-keeping method comprises the following steps: step 1, spraying a curcumin solution on a hypsizygus marmoreus sample; 2, treating the hypsizygus marmoreus treated in the step 1 in an electric field with certain intensity; meanwhile, LED visible light is used for irradiation, and the sterilization process is completed. According to the method, the curcumin-induced photodynamic technology is activated through the high-voltage electrostatic technology, microorganisms on the hypsizygus marmoreus can be killed to the maximum extent, and compared with a traditional refrigeration and preservation technology, the high-voltage electrostatic technology has the advantages of being high in efficiency, small in energy consumption and free of heat effect and is matched with the current environment-friendly concept that carbon reaches the peak and carbon neutralization is vigorously advocated all over the world. The method provided by the invention belongs to non-thermal sterilization, can maintain the nutritional ingredients, good flavor and good taste of the hypsizygus marmoreus to the greatest extent while sterilizing the hypsizygus marmoreus, and effectively prolongs the shelf life.

Description

technical field [0001] The invention relates to the fields of food processing technology and fresh-keeping, in particular to a fresh-keeping method for prolonging the shelf life of seafood mushrooms by activating photodynamic forces with high-voltage static electricity. Background technique [0002] In recent years, the edible fungus industry has developed rapidly, and the market scale has continued to expand. my country has become a large producer and consumer of edible fungi. Fujian Province is one of the main producing areas and advantageous areas of edible fungi in the country. In Fujian, the output value of edible fungi accounts for about 12.15% to 13.21% of the agricultural output value, ranking fourth after vegetables, fruits, and tea. Fast and other characteristics have a positive effect on increasing farmers' income and solving the employment problem of surplus labor. It is a new hot spot and bright spot in rural economic development. Further improving post-harves...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154A23B7/015
Inventor 林少玲施源张佳雯周凤赖丹宁
Owner FUJIAN AGRI & FORESTRY UNIV
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