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:
Smell Proof Stand Up Flat Bottom Pouch Coffee Bag /Coffee Beans Bag With Air Release Valve And Reusa
pouch with handle distributors
mulberry mini pouch with handle Vendor
Use more paper food packaging bags to take care of the environment.aluminum foil bag large manufactu
We all know but not necessarily comprehensive plastic packaging bag use knowledge.zip lock aluminum
Popular recommendation
Kraft paper pouch
Spout pouch
Wholesale High Barrier Plastic Stand Up Flat Bottom Pet Dog Food Packaging Bag
refillable spout pouches wholesale
spout pouch packaging supplier
recyclable spout pouches manufacturer
Aluminum foil bag Factory
juice bag in box sales
coffee bag with one way valve
tea pouch packing machine price
Classification and material of packaging bags
How are the bags classified?
Is it normal for frozen food packaging bags to bulge?
New machine 1L-250L April,17,2023
stand up pouch with spout packaging Factory.Classification and material of packaging bags
What are the requirements for dried fruit packaging bags in food packaging bags.fruit and vegetables
What are the packaging machinery and equipment?
Food packaging bags have chemical hazards
bag for food packaging.What are the application scope of composite packaging bags
The thickness of the food packaging bag is related to food safety.reusable Snack food bag Manufactur
smart food snack bags Solution.Understand the thickness of food packaging bags
Factors affecting the price of composite food packaging bags
Three common tea packaging bags.Coffee Tea pouch Manufacturing
Common Mistakes about Plastic Packaging Bags
Customized clothing bag
Introduce the usage of Vacuum packing bag
Material composition of degradable plastic bag
Vacuum packaging
kraft paper pouch bags supplier.Understand the safety performance of food packaging bags
What are the twelve structural types of commonly used packaging bag films