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Compound preservation method of freshly edible rhizoma gastrodiae

A composite fresh-keeping and gastrodia elata technology, applied in the fields of food preservation, fruit and vegetable preservation, food science, etc., can solve the problems of unreported storage and fresh-keeping technology, achieve inhibition of gastrodia elata respiration and peroxidase activity, and prevent microbial invasion. The effect of dyeing and inhibiting gastrodia elata respiration

Inactive Publication Date: 2018-03-13
GUIYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no report on the storage and preservation technology of agricultural products treated with food-grade organic acids combined with irradiation at home and abroad.

Method used

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  • Compound preservation method of freshly edible rhizoma gastrodiae
  • Compound preservation method of freshly edible rhizoma gastrodiae
  • Compound preservation method of freshly edible rhizoma gastrodiae

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 (black gastrodia elata):

[0037](1) Soak the excavated Gastrodia elata with food-grade organic acid solution (lactic acid + citric acid + malic acid + ascorbic acid, pH value 2.5) for 1-2 minutes, then wash and place Gastrodia elata at 15-20°C Dry naturally in a ventilated environment;

[0038] (2) Put the gastrodia elata that has been dried on the surface into a bag inside a fresh-keeping bag, made of polyethylene, with a thickness of 40 μm and an air permeability of 5300 cm 3 / (m 2 ·24h·0.1Mpa), use 60 Go-γ static irradiation source irradiates Gastrodia elata, and the irradiation dose is 2.5kGy;

[0039] (3) Place the irradiated Gastrodia elata in a cold storage, and then open the fresh-keeping bag to pre-cool Gastrodia elata in three stages. The first stage is pre-cooled at a temperature of 15±0.5°C for 24 hours, and the second stage is pre-cooled at a temperature of 10±0.5°C for 24 hours. , the third stage is pre-cooled at a temperature of 2±0.5°C ...

Embodiment 2

[0051] Embodiment 2 (red gastrodia elata):

[0052] (1) Soak the excavated Gastrodia elata with food-grade organic acid solution (lactic acid + ascorbic acid, pH 5.5) for 1-2 minutes, then wash and dry the gastrodia elata naturally in a ventilated environment at 15-20°C Dry;

[0053] (2) Put the gastrodia elata that has been dried on the surface into the inner bag of the fresh-keeping bag, the material is polyethylene material, the thickness is 20μm, and the air permeability is 6800cm 3 / (m 2 ·24h·0.1Mpa), use 60 Go-γ static irradiation source irradiates Gastrodia elata, and the irradiation dose is 1.5kGy;

[0054] (3) Place the irradiated Gastrodia elata in a cold storage, and then open the fresh-keeping bag to pre-cool Gastrodia elata in three stages. The first stage is pre-cooled at a temperature of 15±0.5°C for 24 hours, and the second stage is pre-cooled at a temperature of 10±0.5°C for 24 hours. , the third stage is pre-cooled at a temperature of 2±0.5°C for 24h;

...

Embodiment 3

[0067] Embodiment 3 (dark red Gastrodia elata):

[0068] (1) Soak the excavated Gastrodia elata with food-grade organic acid solution (citric acid, pH 3) for 1-2 minutes, then wash and dry the Gastrodia elata naturally in a ventilated environment at 15-20°C ;

[0069] (2) Put the gastrodia elata that has been dried on the surface into a bag in a fresh-keeping bag, made of polyethylene, with a thickness of 60 μm and an air permeability of 3600 cm 3 / (m 2 ·24h·0.1Mpa), use 60 Gastrodia elata was irradiated with Go-γ static radiation source, and the radiation dose was 1.2kGy;

[0070] (3) Place the irradiated Gastrodia elata in a cold storage, and then open the fresh-keeping bag to pre-cool Gastrodia elata in three stages. The first stage is pre-cooled at a temperature of 15±0.5°C for 24 hours, and the second stage is pre-cooled at a temperature of 10±0.5°C for 24 hours. , the third stage is pre-cooled at a temperature of 2±0.5°C for 24h;

[0071] (4) Immediately after the p...

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Abstract

The present invention discloses a compound preservation method of freshly edible rhizoma gastrodiae. The method comprises the following steps: harvested rhizoma gastrodiae is soaked and washed using acertain concentration of food grade organic acids, after a natural air-drying, the soaked and washed rhizoma gastrodiae is loaded into a perseveration bag at a certain thickness, the bag is tied, then a certain dose of 60 Go-gamma is used to irradiate the rhizoma gastrodiae, the irradiated rhizoma gastrodiae is placed in a cold storage, then the preservation bag is opened, a pre-cooling of the rhizoma gastrodiae at three stages is conducted, after the pre-cooling, the bag is tied immediately, a temperature of the cold storage is kept at 2 plus or minus 0.5 DEG C, a relative humidity is kept at 85%-90%, and during the storage process, ozone is periodically aerated for 4 times a day to enable an ozone concentration in the preservation storage to reach 80 mg / L-120 mg / L each time before stopping. The compound preservation method can effectively prevent diseases of rhizoma gastrodiae rotten diseases, infection of mixed bacteria, etc., maintains nutritional quality of the rhizoma gastrodiae, reduces irradiation doses, and enables an effective storage period of the rhizoma gastrodiae to be 180 days and a commodity rate to reach 85% or more. The method is also suitable for the preservation of digging-damaged rhizoma gastrodiae, and simple, highly efficient, green and safe storage and preservation method of the rhizoma gastrodiae.

Description

technical field [0001] The invention belongs to the technical field of storage and fresh-keeping of agricultural products, and in particular relates to a composite fresh-keeping method for fresh gastrodia elata. Background technique [0002] In recent years, with the improvement of living standards, people pay more and more attention to health preservation. Fresh Gastrodia elata, as a homologous raw material for medicine and food, has been favored by more and more consumers. Modern pharmacological research shows that Gastrodia elata has anti-aging, anti-hypertensive, enhancing human immunity and other effects. Although fresh Gastrodia elata has high nutritional value, it is difficult to store Gastrodia elata because of the wet soil attached to the tuber surface after harvesting, and there is a symbiotic relationship between Gastrodia elata and Armillaria elata, low temperature will inhibit the growth and aging of Gastrodia elata, and Armillaria elata will cause Gastrodia e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/015A23B7/04A23B7/152A23B7/154
CPCA23B7/015A23B7/04A23B7/152A23B7/154
Inventor 曹森王瑞马超吉宁吴文能雷霁卿巴良杰杜斌
Owner GUIYANG UNIV
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