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Letinus edodes coating fresh keeping agent and preparation method thereof

A technology of coating preservatives and shiitake mushrooms, which is applied in the direction of protecting fruits/vegetables with a coating protective layer, which can solve the problems of poor fresh-keeping effect and loss of nutrients, and achieve the enhancement of the ability to prevent pollution and bacterial invasion, and prevent bacterial invasion Effect

Inactive Publication Date: 2018-11-23
安徽农耕年华农业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention is used for fresh-keeping of edible fungi, which is simple and easy to operate, safe and hygienic, and has a good fresh-keeping effect; however, the invention has poor fresh-keeping effect and serious loss of nutrients

Method used

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  • Letinus edodes coating fresh keeping agent and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment relates to a fresh-keeping agent for shiitake mushroom coating, which is composed of the following raw materials in parts by weight: 30 parts of tea polyphenol extract, 20 parts of modified konjac starch, 10 parts of chitin, 8 parts of sodium oleate, 1 part of benzoic acid 1 part, 1 part of natamycin, 15 parts of water.

[0030] Wherein, the extraction method of tea polyphenols is as follows: take the cleaned tea leaves and put them into a ball mill, grind them to a particle size of 100 mesh, put them into an extraction device, add water 8 times the weight of tea leaves, and heat at 40°C. Ultrasonic extraction was performed for 40 minutes, and the tea polyphenol extract was obtained by filtration.

[0031] Wherein, the preparation method of modified konjac starch is: take sodium hexametaphosphate and dissolve it in water with 100 times of its weight portion, stir until sodium hexametaphosphate is completely dissolved, obtain sodium hexametaphosphate solu...

Embodiment 2

[0036] This embodiment relates to a fresh-keeping agent for mushroom coating, which is composed of the following raw materials in parts by weight: 40 parts of tea polyphenol extract, 30 parts of modified konjac starch, 18 parts of chitin, 14 parts of sodium oleate, 2 parts of benzoic acid 3 parts, 3 parts of natamycin, 23 parts of water.

[0037] Wherein, the extraction method of tea polyphenols is as follows: take the cleaned tea leaves and put them into a ball mill, grind them to a particle size of 180 mesh, put them into an extraction device, add water 10 times the weight of tea leaves, and heat at 50°C. Ultrasonic extraction was carried out for 60 minutes, and the tea polyphenol extract was obtained by filtration.

[0038] Wherein, the preparation method of modified konjac starch is: take sodium hexametaphosphate and dissolve it in water with 100 times of its weight portion, stir until sodium hexametaphosphate is completely dissolved, obtain sodium hexametaphosphate soluti...

Embodiment 3

[0043] This embodiment relates to a fresh-keeping agent for mushroom coating, which is composed of the following raw materials in parts by weight: 32 parts of tea polyphenol extract, 22 parts of modified konjac starch, 12 parts of chitin, 10 parts of sodium oleate, 1.2 parts of benzoic acid 1.2 parts of natamycin, 17 parts of water.

[0044]Wherein, the extraction method of the tea polyphenols is as follows: take the cleaned tea leaves and put them into a ball mill, grind them to a particle size of 100 mesh, put them into an extraction device, add water 8 times the weight of tea leaves, and heat at 40 °C, ultrasonically extract for 40 minutes, and filter to obtain tea polyphenol extract.

[0045] Wherein, the preparation method of the modified konjac starch is as follows: take sodium hexametaphosphate and dissolve it in water with 100 times of its weight portion, stir until sodium hexametaphosphate is completely dissolved, obtain sodium hexametaphosphate solution, and dissolve...

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Abstract

The invention discloses a letinus edodes coating fresh keeping agent and a preparation method thereof, and relates to the technical field of fresh keeping. The letinus edodes coating fresh keeping agent is prepared from the following raw materials in parts by weight: 30-40 parts of tea polyphenol extraction liquid, 20-30 parts of modified konjac starch, 10-18 parts of chitin, 8-14 parts of sodiumoleate, 1-2 parts of benzoic acid, 1-3 parts of natamycin and 15-23 parts of water. The preparation method of the letinus edodes coating fresh keeping agent comprises the steps of mixing and stirring.By means of the letinus edodes coating fresh keeping agent, fresh keeping time of letinus edodes can be greatly prolonged, and loss of nutritional components can be reduced.

Description

technical field [0001] The invention belongs to the field of fresh-keeping technology, and in particular relates to a film-coated fresh-keeping agent for shiitake mushrooms and a preparation method thereof. Background technique [0002] After the shiitake mushrooms are picked, they will still carry out strong breathing and metabolic activities, which will cause the shiitake mushrooms to brown, shrink, and lose nutrients, which will eventually lead to the shrinkage and rot of the shiitake mushrooms, which will affect the edible value of the shiitake mushrooms. [0003] The preservation method of shiitake mushrooms in the prior art is mainly refrigerated preservation, but the refrigerated preservation is mainly based on the principle of inhibiting the growth of microorganisms, but the long-term storage of this method requires a lot of energy, and the shiitake mushrooms will also undergo a certain amount of storage during the cold storage process. Metabolic activities, nutrient...

Claims

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Application Information

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IPC IPC(8): A23B7/16
CPCA23B7/16
Inventor 王汉青
Owner 安徽农耕年华农业发展有限公司
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