Packaging technology characteristics and application of deoxidizer packaging

Deoxidation packaging is a kind of packaging in which a deoxidizer that can chemically interact with oxygen is enclosed in a sealed packaging container, thereby removing oxygen in the packaging, so that the packaged material can be stored under conditions of very low oxygen concentration or even almost no oxygen. technology. At present, the packaging of deoxidizers is mainly used for the preservation of oxygen-sensitive perishable foods, such as cakes, moon cakes, gift snacks, tea, coffee powder, processed aquatic products, and meat products. The most notable feature of deoxygenation packaging is that the oxygen is reduced to a very low level in a sealed package, and even produces an almost oxygen-free environment. The deoxidizer can remove all the oxygen in the packaging container, and can also remove all the oxygen that penetrates into the packaging from the external environment and the oxygen that is dissolved in the liquid or filled in the micropores of the solid sponge-like structure, thereby effectively controlling the packaging. All kinds of spoilage caused by oxygen are reduced to a minimum. The research results show that many foods are extremely sensitive to oxygen. Foods stored in a near-anaerobic environment can effectively inhibit the oxidation of oils, pigments, vitamins, amino acids, aromatic substances and other components, and better maintain the original color and aroma of the product. At the same time, the removal of oxygen inhibits the growth and reproduction of aerobic microorganisms, thereby reducing the spoilage and deterioration caused by it. In addition, all pests need oxygen to maintain life, no matter what stage of life activity the insect is in, As long as the oxygen in the environment is lower than 0.1%, all insects will die within half a month. Deoxygenation packaging is widely used in food storage and preservation in Japan, Europe and the United States and other developed countries. Sealed deoxidizer packaging is a new packaging method formed after the emergence of vacuum packaging and cheating gas packaging. It overcomes the shortcomings of incomplete vacuum-inflatable packaging. At the same time, sealed deoxidizer packaging also has the required equipment. Simple, It has the advantages of convenient operation, high efficiency and flexible use. Encapsulated deoxidizer packaging has incomparable characteristics with other food packaging technologies: 1. Encapsulating deoxidizer in food packaging can eliminate the need to add chemical additives such as mildew and anti-oxidation in the food production process, thereby making food safer and more beneficial to people's health. 2. If the deoxidizer used is suitable, the oxygen content inside the package can be reduced to 0.1%, and the food is stored in an environment close to anaerobic, which can prevent the oxidation of nutrients such as oil, pigment and vitamins in it, and keep it well. The original color, aroma, taste and nutrition of the product. 3. Deoxygenation packaging is more effective in preventing or delaying spoilage caused by aerobic microorganisms than vacuum or inflatable packaging. This packaging effect can appropriately increase the moisture content of food (such as bread), and can appropriately extend the retention period. In order to improve the packaging effect and efficiency in production practice, the encapsulated deoxidizer can be applied in combination with vacuum or air-filled packaging.