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Preparation method and application of critical time-temperature integrator for monitoring aquatic product cold-chain logistics interruption chain condition

A technology of cold chain logistics and critical time, applied to thermometers, thermometers, instruments, etc. that change physically/chemically, can solve problems such as temperature abuse, and achieve the effects of simple preparation, high cost performance, and good color rendering effect

Pending Publication Date: 2021-09-03
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for preparing a critical time-temperature integrator for monitoring the chain interruption of the cold chain logistics of aquatic products, and to solve the technical problem of how to indicate whether there is temperature abuse of aquatic products in the entire cold chain logistics process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The critical time-temperature integrator of the present embodiment is made by following method:

[0017] Prepare a phosphate buffer solution with a pH of 7.0 and a concentration of 0.2 mol / l, and sequentially weigh a certain amount of fructose and peptides and dissolve them in the above phosphate buffer solution to form the first aqueous solution with a concentration of 0.4 mol / l and 2.0 mol / l / l of the second aqueous solution. According to the ratio of 1:1, take 400 microliters of the mixture formed by mixing the above two aqueous solutions and add it into the packaging bag to make a critical time-temperature integrator with a size of 25×20mm.

Embodiment 2

[0019] The critical time-temperature integrator of the present embodiment is made by following method:

[0020] Prepare a phosphate buffer solution with a pH of 6.5 and a concentration of 0.1 mol / l, and sequentially weigh a certain amount of fructose and peptides and dissolve them in the phosphate buffer solution to form the first aqueous solution with a concentration of 0.6 mol / l and the first aqueous solution with a concentration of 1.0 mol / l. l of the second aqueous solution. According to the ratio of 1:1, take 400 microliters of the mixture formed by mixing the above two aqueous solutions and add it into the packaging bag to make a critical time-temperature integrator with a size of 25×20mm.

Embodiment 3

[0022] The critical time-temperature integrator of the present embodiment is made by following method:

[0023] Prepare a phosphate buffer solution with a pH of 7.0 and a concentration of 0.05 mol / l, and sequentially weigh a certain amount of fructose and peptides and dissolve them in the phosphate buffer solution to form the first aqueous solution with a concentration of 0.4 mol / l and the first aqueous solution with a concentration of 1.5 mol / l. l of the second aqueous solution. According to the ratio of 1:1, take 400 microliters of the mixture formed by mixing the above two aqueous solutions into the packaging bag to make a critical time-temperature integrator with a size of 25 × 20mm.

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PUM

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Abstract

The invention discloses a preparation method and application of a critical time-temperature integrator for monitoring an aquatic product cold-chain logistics interruption chain condition. The invention discloses a preparation method of a critical time-temperature integrator for monitoring the chain interruption condition of cold-chain logistics of aquatic products. The preparation method comprises the following steps: preparation of a phosphate buffer solution: weighing 3.58 g of disodium hydrogen phosphate solid and dissolving the disodium hydrogen phosphate solid in 50ml of ultrapure water to form a first aqueous solution; weighing and dissolving 1.56 g of sodium dihydrogen phosphate solid in 50 ml of ultrapure water to form a second aqueous solution; and mixing the first aqueous solution and the second aqueous solution to form a phosphate buffer solution. According to the invention, the technical problem of how to indicate whether the temperature abuse condition exists in the whole cold-chain logistics process of the aquatic products can be solved.

Description

technical field [0001] The invention belongs to the field of food monitoring and indication, and in particular relates to a critical time-temperature integrator based on Maillard reaction and its application, which can be used to monitor whether there is temperature abuse of aquatic products in the process of cold chain logistics. Background technique [0002] From fishing to consumers, fresh seafood needs to go through various logistics processes such as loading and unloading, transportation, storage, and distribution, among which effective temperature management is crucial. However, due to unexpected factors such as cold chain breaks, the quality and safety of seafood cannot completely rely on cold chain logistics. Studies have shown that aquatic products often deviate from the recommended temperature conditions during cold chain-transportation. However, traditional monitoring techniques cannot accurately monitor the time and temperature accumulation of individual or batc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K11/12
CPCG01K11/12G01K3/04
Inventor 叶贝贝王彦波傅玲琳陈剑李华韬杨仁迪
Owner ZHEJIANG GONGSHANG UNIVERSITY