Preservation method of morchella esculenta

A fresh-keeping method, the morel technology, is applied in the direction of fruit and vegetable preservation, food ingredients as anti-microbial preservation, food preservation, etc., which can solve the problems of impossibility of large-scale implementation, poor film-forming property, and low cost, and achieve the realization of Large-scale operation, good promotion value, and low equipment requirements

Pending Publication Date: 2020-02-11
四川省食用菌研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dictyophora spinosa has a strong fragrance, which is easy to cover up or confuse the flavor of the morel itself; the surface of the fruit body of the morel is uneven, the film-forming property is not good, and the operation is cumbersome, so it is not suitable for promotion and implementation
[0005] Li Xiang et al. (The effect of post-harvest pretreatment on the fresh-keeping effect of hickory chick. Food Industry Science and Technology 37 (13): 319~322) found that using 0.75% chitosan fresh-keeping liquid to treat hickory chick coating film can inhibit the growth of hickory chick. The respiration of belly bacteria maintains better nutritional value during storage, but the coating process is cumbersome and cannot be implemented on a large scale
Compared with other fresh-keeping methods used for fruits and vegetables, there are mainly cold storage, modified atmosphere, adding preservatives, new packaging materials, etc., all of which have risks such as high cost, cumbersome operation, high technical threshold, and residual harmful substances. It cannot be widely promoted in the process of post-harvest storage and fresh-keeping of Morchella
[0006] Therefore, lack a kind of low cost, safe morel fresh-keeping method on the existing market

Method used

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  • Preservation method of morchella esculenta

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 adopts the inventive method to fresh-keeping hickory chick

[0035] The specific steps are as follows:

[0036] Step 1. Prepare slightly acidic electrolyzed water with a small amount of 4% hydrochloric acid solution as the electrolyte. According to different instrument setting parameters, the prepared electrolyzed water is finally diluted to slightly acidic electrolyzed water with a pH of 5.80±0.2.

[0037] Step 2. Put a certain amount of Morchella into the slightly acidic electrolyzed water prepared in Step 1, and keep submerged for 5 minutes.

[0038] Step 3. Take out the morel mushrooms in step 2, place them in a well-ventilated closed space, install a UV lamp on the top, and irradiate them with UV light for 30 minutes. The ultraviolet wavelength of the ultraviolet lamp is 254nm, the distance between the ultraviolet lamp and the irradiated Morchella is 0.5m, and the intensity is 70μW / cm 2 .

[0039] Step 4. Place the morels in airtight packaging to re...

Embodiment 2

[0040] Embodiment 2 Adopt the inventive method to fresh-keeping hickory chick

[0041] The specific steps are as follows:

[0042] Step 1. Prepare slightly acidic electrolyzed water with a small amount of 4% hydrochloric acid solution as the electrolyte. According to different instrument setting parameters, the prepared electrolyzed water is finally diluted to slightly acidic electrolyzed water with a pH of 5.80±0.2.

[0043] Step 2. Put a certain amount of Morchella into the slightly acidic electrolyzed water prepared in Step 1, and keep submerged for 10 minutes.

[0044]Step 3. Take out the morel mushrooms in step 2, place them in a well-ventilated closed space, install a UV lamp on the top, and irradiate them with UV light for 30 minutes. The ultraviolet wavelength of the ultraviolet lamp is 254nm, the distance between the ultraviolet lamp and the irradiated Morchella is 0.5m, and the intensity is 70μW / cm 2 .

[0045] Step 4. Place the morels in airtight packaging to red...

Embodiment 3

[0045] Step 4. Place the morels in airtight packaging to reduce contact with the outside world, and store them at room temperature. Embodiment 3 adopts the inventive method to fresh-keeping hickory chick

[0046] The specific steps are as follows:

[0047] Step 1. Prepare slightly acidic electrolyzed water with a small amount of 4% hydrochloric acid solution as the electrolyte. According to different instrument setting parameters, the prepared electrolyzed water is finally diluted to slightly acidic electrolyzed water with a pH of 5.80±0.2.

[0048] Step 2. Put a certain amount of Morchella into the slightly acidic electrolyzed water prepared in Step 1, and keep submerged for 15 minutes.

[0049] Step 3. Take out the morel mushrooms in step 2, place them in a well-ventilated closed space, install a UV lamp on the top, and irradiate them with UV light for 30 minutes. The ultraviolet wavelength of the ultraviolet lamp is 254nm, the distance between the ultraviolet lamp and the...

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Abstract

The invention belongs to the technical field of morchella esculenta planting, and particularly relates to a preservation method of morchella esculenta. Aiming at the problem that a morchella esculentapreservation method with low cost and good safety is lacked in the existing market, the invention provides the preservation method of the morchella esculenta. The method comprises the following steps: a, preparing slightly acidic electrolyzed water, and soaking the morchella esculenta in the slightly acidic electrolyzed water for 5-15 minutes; and b, fishing out the morchella esculenta, drainingoff the morchella esculenta, irradiating the morchella esculenta with ultraviolet rays for 10-45 minutes, and storing the morchella esculenta at normal temperature. According to the method disclosed by the invention, the contents of superoxide dismutase and vitamin C can be increased, the activities of polyphenol oxidase and catalase are inhibited, and the breathing intensity of the morchella esculenta is at a proper active level to keep the hardness and flavor of the morchella esculenta; and meanwhile, the nutrition and the color of the morchella esculenta are basically not damaged. The method is simple to operate, low in equipment requirement and convenient to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of hickory chick planting, and in particular relates to a fresh-keeping method of hickory chick. Background technique [0002] Morchella is a precious edible and medicinal fungus, which is rich in various bioactive components, such as polysaccharides, proteins, trace elements, amino acids, etc., and is deeply loved by people. Studies have shown that Morchella has anti-inflammatory, immune regulation, anti-oxidation and other activities. It has great development and utilization value in medicine and health food, and its demand is increasing day by day. At present, the field artificial cultivation technology of hickory chick is being gradually promoted throughout the country, and the output of hickory chick has also increased sharply. However, the caps of morels are fragile, and any mechanical impact may cause tissue damage, which in turn may cause microbial infection and rot. Therefore, how to effectively p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/157A23B7/015
CPCA23B7/157A23B7/015A23V2002/00A23V2250/1582A23V2200/10A23V2200/048
Inventor 许瀛引甘炳成谢丽源彭卫红唐杰何晓兰陈影周洁苗人云刘天海
Owner 四川省食用菌研究所
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