Tel: +86 188 2689 9458
source:Industry News release time:2023-06-28 Hits:
The principle of packaging is to use the best gas composition around the sealed packaging to maintain favorable product preservation. These gases include carbon dioxide (CO2), nitrogen (N2), oxygen (O2), sulfur dioxide (SO2), carbon monoxide (CO), etc.
Carbon dioxide is the most important gas used to protect food in inflatable packaging. This gas is often used to inhibit the growth of microorganisms, bacteria, and molds. In inflatable packaging, its concentration should not be too low or too high: when the concentration is too low, it is not enough to inhibit the growth of bacterial mold. When the concentration is too high, it will change the taste of the food, making it sour, and also have a respiratory inhibitory effect on fruits and vegetables. In addition, if the food has a high water content, carbon dioxide gas is generally not used separately.
Nitrogen is an inert gas that cannot inhibit the breeding and growth of food microorganisms, but it is also harmless to food. Nitrogen is only used as a packaging filling agent to maintain positive pressure inside the bag, preventing air from entering the bag, relatively reducing the residual oxygen content inside the packaging, and making the soft packaging full and beautiful.
Generally speaking, oxygen is not conducive to food storage, but it is not conducive to the preservation of fresh fish, shellfish, etc. because their tissues are active, completely oxygen free or oxygen is too little, which is not conducive to their preservation. An appropriate amount of oxygen is needed to maintain the production of oxidized Myoglobin, so that fresh fish can maintain its normal inherent bright red. There is also a type of food and fresh fruits and vegetables that have a certain demand for oxygen. There must be a trace amount of oxygen to keep fruits and vegetables active through respiration, otherwise it will also accelerate their decay and fermentation rate. For processed meat and fish products and foods with high fat content, oxygen is harmful and beneficial.
Sulfur dioxide has good antibacterial and bactericidal effects, with excellent insect and mold prevention effects, especially reducing the respiratory and metabolic speed of fresh fruits and vegetables, prolonging their shelf life, and reducing vitamin loss. After sulfur dioxide is dissolved in water, it becomes weakly acidic, and the dosage of foods with high water content should be strictly controlled.
Carbon monoxide is colorless, odorless, almost insoluble in water, and has strong bactericidal and antibacterial properties. It is mainly used for mold prevention and disinfection of fruits and vegetables. Carbon monoxide is generally rarely used.
CO2, N2, and O2 are the three most commonly used gases in inflatable packaging, which can be used alone or mixed in the best proportion. However, it is usually determined through experiments based on the physiological characteristics of the product, possible causes of deterioration, and circulation environment. For example, using nitrogen gas in inflatable packaging of soy products, milk powder, fruit juice, etc. can prevent oxidation; The use of carbon dioxide in the inflatable packaging of bread and rice cakes can prevent mold; The use of carbon dioxide and nitrogen in the inflatable packaging of peanut kernels and almonds can prevent oxidation, moisture absorption, and fragrance loss
Read recommendations:
Wholesale Price Biodegradable Aluminum 3 Three Side Seal High Temperature Microwavable Food Retort S
customization Pouch with Handle
Popular recommendation
Flexible packaging film roll
China Factory Baby Complementary Food Spout Pouch Baby Food Fruit Puree Bag With Spout Packaging Bag
Custom Laminated Printing Juice Bag Liquid Packaging Stand Up Plastic Water Spout Pouch
mulberry mini pouch with handle price
juice bag in box maker
pouch flexible packaging custom
packaging spout pouch supplier
spout pouch serves
custom spout pouches
bag in box wine Manufacturing
Kraft paper bags are easy to tear? It's just its material characteristics.kraft paper pouch bags man
Packaging bag classification for liquid products
The function of Bag-in-Box
What is the function of the hole on the coffee bag
Sterilization classification and principle of sterile bags
Use more paper food packaging bags to take care of the environment.aluminum foil bag large manufactu
PET food bag wholesaler.What requirements should food packaging bags meet
Introduce the development trend of pet food packaging.Spout pouch flexibility Factory
bag in box packaging Solution.Learn about children's food packaging bags
How To Seal A Spout Pouch- The Complete Guide
The selection of vacuum bag manufacturers is particularly important.food vacuum bag
Why choose aluminum foil bags for mask packaging bags
paper snack food bag Solution.Introduce the precautions for using food packaging bags
The difference between textured vacuum bag and vacuum bag
What kind of bacteria is flatulence in food packaging bags generally?mylar bags custom printed
What is the material of cooking bag
How to judge the quality of liquid packaging bags?produce trays and packaging
The characteristics and disadvantages of aluminum foil bags are actually very simple.gusset aluminum
How to increase the sales of plastic bags.stand up pouches for food package
Talk about the advantages and applications of Spout Poubs