Poultry and pork box tray controlled atmosphere packaging machine

材质：

不锈钢

At present, with the improvement of people's living standards, the demand for chilled meat is also increasing, so many companies are preparing to produce chilled meat. However, since the shelf life of cold fresh meat is very short, the color is difficult to maintain. Many companies are afraid of this and have to produce and distribute cold meat on a large scale. Solving the problem of preservation is the key. Nowadays, composite modified atmosphere fresh-keeping packaging is generally used internationally to solve such problems.
The application of modified atmosphere preservation packaging in cold fresh meat is introduced as follows
1. Basic principles
Nutritionists believe that there is an active substance in the body of pigs after they are slaughtered. If eaten immediately, On the contrary, its nutritional value is not as good as cooling it first and then eating it. For example, after slaughtering, it is cooled at ~ ℃ for an hour to lose its activity and realize the acid elimination process. The texture of the pork becomes soft, fragrant, has a good taste, and is conducive to human body absorption. This kind of meat is called Cool the meat. The packaging of cold fresh meat includes vacuum packaging, nitrogen-filled packaging and composite modified atmosphere packaging. Because the color of cold fresh meat becomes darker after vacuum packaging and nitrogen-filled packaging and loses the original fresh color of fresh meat, composite modified atmosphere preservation packaging is generally used. The shelf life of cold fresh meat after composite modified atmosphere preservation packaging is ~ days, and can maintain the color and aroma of fresh meat.
The color of meat depends on the three states of myoglobin on the muscle surface. Due to lack of oxygen during vacuum and nitrogen packaging, myoglobin changes into reduced myoglobin, and the meat turns lavender when exposed to the environment for a long time. In the air, myoglobin is converted into metmyoglobin, and the muscles appear dark brown. When a certain amount of oxygen is maintained in the packaging container, myoglobin is converted into oxymyoglobin, and the muscles take on the bright red color of fresh meat. Since the modified atmosphere packaging filled with an appropriate proportion of fresh-keeping gas can not only ensure the unchanged quality of fresh meat, but also maintain its original fresh color and attract consumers to buy, so it is more suitable to use composite modified atmosphere fresh-keeping packaging for cold fresh meat.
The mixed fresh-keeping gas of the composite modified atmosphere fresh-keeping packaging of cold fresh meat is composed of. The concentration ratio is high, because the higher concentration can keep the cooled meat's bright red color of fresh meat. The appropriate concentration can inhibit the growth and reproduction of bacteria and microorganisms. According to foreign experience and our company's practice, satisfactory results can be achieved when the concentration of the mixed gas is between ﹪~﹪ and the concentration is between ﹪~﹪. This not only extends the shelf life of the cold meat, but also makes the appearance of the cold meat more attractive, attracting consumers.
2. Function
It is helpful to extend the shelf life of cold fresh meat. After cold fresh meat is packaged in modified atmosphere, it can generally be kept fresh for ~ days at ~°C.
, conducive to maintaining the appearance and color of cold fresh meat
, conducive to improving the quality, safety and hygiene of cold fresh meat. After cold fresh meat is deacidified and cooled, it is more conducive to human body absorption, packaging After cooking, the cold meat is isolated from the outside world and cannot be invaded by bacteria. In this way, the quality, safety and hygiene of cold fresh meat are greatly improved.
It is beneficial to reduce the number of distributions, save production costs, and expand the marketing scope. As the shelf life is extended, the marketing scope can be expanded and the number of distributions can be relatively reduced, thus saving production costs.
, conducive to establishing brand image
After the use of modified atmosphere packaging for cold fresh meat, both product quality and appearance have been greatly improved, which will expand the brand of the company and improve the corporate image. Any improvement will have a very positive effect.
To sum up, enterprises producing cold fresh meat have broad development prospects, and the use of composite modified atmosphere fresh-keeping packaging is also an inevitable trend. So, whoever masters advanced technology first will win in the future struggle. Advantages, occupying a major position in the market