Nutritionists believe that there is also an active substance of ATP in the body after slaughter. If it is eaten immediately, its nutritional value is not as good as it is cooled first; if it is cooled at 0-4 °C for 24 h after slaughter, the ATP is inactivated and the acid removal process is realized. The texture of the pork is soft and fragrant, the taste is good, and it is good for the body to absorb. This kind of meat is called "cooled meat". The packaging of cold meat is in several forms such as vacuum packaging, nitrogen filling packaging and composite air conditioning packaging. Because the vacuum packaging and nitrogen-filled packaging are dark after the packaging, the color of the cold meat is dark, and the original fresh color of the fresh meat is lost. Therefore, the composite fresh-keeping air-conditioning packaging machine is generally used, and the fresh-keeping period of the cold fresh meat after the composite modified fresh-keeping packaging is 7 -12 days, and can maintain the color and aroma of fresh meat.

The color of meat depends on the three states of muscle surface myoglobin. In vacuum and nitrogen-filled packaging, due to lack of oxygen, myoglobin is converted to reduced myoglobin, and the meat is lavender. Meat is exposed to the air for a long time. The red protein is converted to positive iron myoglobin, and the muscle is dark brown; when a certain amount of oxygen is kept in the packaging container, myoglobin is converted into oxygenated myoglobin, and the muscle has a bright red color of fresh meat. Since the modified atmosphere packaging is filled with a proper proportion of fresh-keeping gas, it can not only ensure the quality of the fresh meat, but also maintain its original fresh color and attract consumers to buy. Therefore, it is more suitable to use the composite fresh-keeping air-conditioning packaging machine for cold meat.

New Laser Distance Sensor

JRT has been R&D Laser Distance Sensor every year. In this part, we put every new sensor here. To help our customer to find the lastest item. To know the updates we are doing, what's new for laser distance modules. What kind of Laser Distance Meter sensor we can make.
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JRT Team

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Chengdu JRT Meter Technology Co., Ltd , https://www.jrt-measure.com