Preparation method of temperature-sensitive emulsion indicator for food cold chain safety monitoring
A safety monitoring and temperature-sensitive technology, which is applied to thermometers, thermometers, and measuring devices with physical/chemical changes, and can solve the problems of indistinguishable food safety, hygiene, storage and transportation, etc.
Inactive Publication Date: 2020-10-20
CHANGCHUN VOCATIONAL INST OF TECH
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Problems solved by technology
However, the reality is that the vast majority of consumers cannot tell whether food is safe and hygienic and whether it has been properly stored and transported
Method used
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Embodiment Construction
[0016] see figure 1 , figure 2 and image 3 .
[0017] Step 1: Mix egg yolk lecithin and lysolecithin at a ratio of 2:15 as the oil phase, place the oil phase in pure water at a mass concentration of 40%, and use an ultrasonic cell disruptor at 35°C to 6s intermittent 3s intermittent ultrasonic treatment mode, the above-mentioned mixed liquid containing oil phase is ultrasonically treated for 18 minutes; the mixed liquid is homogenized at a speed of 12300r / min by a homogenizer for 12-25 minutes; the laser particle size detector is used to screen Mixed liquid, the particle size of which shall not exceed 5 μm.
[0018] Step 2: Add coconut oil in the oil phase to the mixed solution obtained in step 1, so that the mass concentration of coconut oil in the mixed solution is 235%; at 35°C, use an ultrasonic cell disruptor, using an intermittent method of ultrasonic 6s and 3s Ultrasonic treatment mode, ultrasonic treatment for 33 minutes; use a homogenizer to homogenize the mixed...
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Abstract
The invention discloses a preparation method of a temperature-sensitive emulsion indicator for food cold chain safety monitoring. The preparation method comprises the following implementation steps: 1, preparing a temperature-sensitive low-temperature excitation oil phase; 2, preparing a temperature-sensitive regulating oil phase; and 3, preparing a temperature-sensitive emulsion indicator. Pickering emulsion which is widely used in the fields of chemical industry, energy, medicine and the like is applied to food cold chain system monitoring, and the stability of the emulsion is controlled through grease particles to prepare a temperature-sensitive emulsion indicator taking the Pickering emulsion as a substrate. The temperature-sensitive emulsion indicator is suitable for monitoring the cold chain quality safety of all foods, food raw materials and food semi-finished products which need to be refrigerated such as aquatic products, livestock products and agricultural products, and has positive significance to the improvement on the food quality management awareness of cold chain logistics enterprises and the improvement on cold chain system management methods and means.
Description
technical field [0001] The invention belongs to the field of food cold chain safety, and in particular relates to a preparation method of a temperature-sensitive emulsion indicator used for food cold chain safety monitoring. Background technique [0002] Food cold chain means that refrigerated or frozen foods (including food raw materials and food semi-finished products) are under specific low temperature conditions in all links before production, storage, transportation, sales and consumption, so as to ensure food quality and safety and prevent or A supply chain system that reduces food spoilage, contamination and loss. In general, the food that needs to be stored and transported in the cold chain system is temperature-sensitive perishable food, which has extremely strict requirements on the ambient temperature, and the fluctuation of ambient temperature is a key factor that threatens the quality and safety of food. With the extension of time, various biochemical reactions...
Claims
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IPC IPC(8): G01K11/06
CPCG01K11/06
Inventor 王然孙佳帝刘洋张春玉蔡勇温慧颖刘颖李亚茹徐亚杰
Owner CHANGCHUN VOCATIONAL INST OF TECH