Cold-chain coolant for tunas and preparation method of cold-chain coolant

A cool storage agent, tuna technology, applied in chemical instruments and methods, preservation of meat/fish by freezing/cooling, materials for heat exchange, etc. The effect of reducing the amount of use, not easy to break the packaging bag, and saving costs

Active Publication Date: 2020-01-31
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to propose a cold chain cold storage agent for tuna and its preparation method, which sol

Method used

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  • Cold-chain coolant for tunas and preparation method of cold-chain coolant
  • Cold-chain coolant for tunas and preparation method of cold-chain coolant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Composition of raw materials (parts by weight): 1 part of dry polyaspartic acid / sodium alginate / hyaluronic acid triple network hydrogel, 5 parts of sodium chloride, and 77 parts of water.

[0034] The dried polyaspartic acid / sodium alginate / hyaluronic acid triple network hydrogel was prepared by the following method:

[0035] S1. Preparation of the first gel network: dissolve 10g polyaspartic acid, 3g arginine, 12g sodium alginate and 8g hyaluronic acid in water, stir well, add 5g carbodiimide hydrochloride and 2g N-hydroxysuccinyl, after being stirred evenly, left to stand to form a gel to obtain hydrogel A;

[0036] S2. Preparation of the second gel network: soak the above hydrogel A in 2mol / L CaCl 2 solution, soaked for 24 hours and then taken out to obtain hydrogel B;

[0037] S3. Preparation of the third gel network: Dissolve 7g of polyethylene glycol in NaOH solution, heat to 35°C, add 0.4g of divinyl sulfone, react in ice bath, heat to 80°C for 2min after the r...

Embodiment 2

[0041] Composition of raw materials (parts by weight): 1 part of dry polyaspartic acid / sodium alginate / hyaluronic acid triple network hydrogel, 5 parts of sodium citrate, and 77 parts of water.

[0042] The dried polyaspartic acid / sodium alginate / hyaluronic acid triple network hydrogel was prepared by the following method:

[0043] S1. Preparation of the first gel network: dissolve 10g polyaspartic acid, 3g arginine, 12g sodium alginate and 8g hyaluronic acid in water, stir well, add 5g carbodiimide hydrochloride and 2g N-hydroxysuccinyl, after being stirred evenly, left to stand to form a gel to obtain hydrogel A;

[0044] S2. Preparation of the second gel network: soak the above hydrogel A in 2mol / L CaCl 2 solution, soaked for 24 hours and then taken out to obtain hydrogel B;

[0045] S3. Preparation of the third gel network: Dissolve 7g of polyethylene glycol in NaOH solution, heat to 35°C, add 0.4g of divinyl sulfone, react in ice bath, heat to 80°C for 2min after the reac...

Embodiment 3

[0049] Composition of raw materials (parts by weight): 1 part of dry polyaspartic acid / sodium alginate / hyaluronic acid triple network hydrogel, 4 parts of sodium chloride, 1 part of sodium citrate, and 77 parts of water.

[0050] The dried polyaspartic acid / sodium alginate / hyaluronic acid triple network hydrogel was prepared by the following method:

[0051] S1. Preparation of the first gel network: dissolve 10g polyaspartic acid, 3g arginine, 12g sodium alginate and 8g hyaluronic acid in water, stir well, add 5g carbodiimide hydrochloride and 2g N-hydroxysuccinyl, after being stirred evenly, left to stand to form a gel to obtain hydrogel A;

[0052] S2. Preparation of the second gel network: soak the above hydrogel A in 2mol / L CaCl 2 solution, soaked for 24 hours and then taken out to obtain hydrogel B;

[0053] S3. Preparation of the third gel network: Dissolve 7g of polyethylene glycol in NaOH solution, heat to 35°C, add 0.4g of divinyl sulfone, react in ice bath, heat to...

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Abstract

The invention provides a cold-chain coolant for tunas. The cold-chain coolant is prepared from the following raw materials in parts by weight: 1-2 parts of dried polyaspartic acid/sodium alginate/hyaluronic acid three-network hydrogel, 5-21 parts of sodium chloride and 77-94 parts of water. A preparation method is simple, a prepared hydrogel is high in water absorption rate and low in cost, the raw materials are edible, and the prepared hydrogel is safe, non-toxic, and high in flowability; packaging bag breakage is not easily caused, so that the leakage risk is reduced; and the cold-chain coolant has a wide application foundation.

Description

technical field [0001] The invention relates to the technical field of fresh-keeping aquatic products, in particular to a cold-chain cold storage agent for tuna and a preparation method thereof. Background technique [0002] Tuna is a general term for several genera of fish with a breastplate in the bony fishes, perciformes, and scombroids. Tuna has high nutritional value, and the International Nutrition Organization recommends tuna as one of the world's three most nutritious fish. Although tuna is rich in nutrients, it is easy to spoil and deteriorate. Because it is rich in myoglobin, its flesh color is bright red. Because of its large size, it often affects the cooling and freezing speed of muscles, which can easily cause muscle discoloration. Making sashimi for consumption requires high freshness of the fish, so the preservation method of tuna is particularly important. [0003] Cold storage technology uses physical, chemical, mechanical and other effective means to sto...

Claims

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Application Information

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IPC IPC(8): C09K5/06A23B4/06
CPCA23B4/06C09K5/06Y02P60/85
Inventor 应晓国施佩影相兴伟惠国华
Owner ZHEJIANG OCEAN UNIV
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