Tel: +86 188 2689 9458
source:other news release time:2022-10-21 Hits:
The preservation characteristics of vacuum frying food
1. The hygroscopic absorption of vacuum frying food
The crispy food feel is the characteristic of vacuum fried food. To maintain the crispyness of fried food, its moisture content should be controlled within 5%, so the problem of hygroscopic (moisture -proof) during storage should be carefully considered. Vacuum frying foods are mainly used in vacuum frying. The product tissue shows a porous structure, so it has strong hygroscopicity, and different vacuum fried foods have different moisture absorption capacity. A vacuum -fried food of agricultural products is stronger than vacuum fried foods for carnivorous aquatic products.
In short, vacuum frying foods should maintain its crispyness and guarantee a long shelf life, and vacuum nitrogen -filled moisture -proof packaging should be carried out. This packaging can choose the purity of nitrogen supply according to the different varieties of the packaging, and directly smoke the vacuum nitrogen, which causes a small hypoxic environment to the packaging items, so that it can maintain activity and inhibit the breeding of their breathing and mold. Dry to prevent moisture and mildew.
2. The oxidation of fat during storage
Vacuum frying foods have porous structures, and a layer of oil is adsorbed on the surface of the pores. This layer of oil cannot be removed by centrifugal oil out of oil. Therefore, vacuum fried foods have a certain oil content. During the storage of the product, if the oil and oxygen contact should occur, the oxidation reaction of the oil should be occurred, and the degree of oxidation of the oil is measured by the oxidation level.
The food hygiene law has stricter regulations on the prices of products, and the products cannot exceed these standards when they reach consumers. Light, oxygen, and temperature are the promotional factor of oil oxidation, that is, oxidation, that is, oxidation.
(1) Storage temperature
The oxidation of the oil is significantly accelerated with the increase in temperature, and the temperature increases by doubled at 10 ° C. The temperature increases. When vacuum -frying foods are packaged in nitrogen, the impact of temperature on food's shelf life will be significantly reduced. At room temperature, the product is stored for 12 months, and the product peroxidation price is exceeded at 50 ° C for 2 months.
(2) The concentration of oxidation
Test results of the impact of oxygen concentration in Japan on vacuum fried foods show that the higher the oxygen concentration, the faster the oxidation reaction speed, and the faster the peroxide price rises. To make the shelf life of the product reaches half a year, the oxygen concentration should be less than 2%; to make the shelf life of the product reaches one year, the concentration of oxidation should be less than 1%.
Read recommendations:
smart food Snack food bag Factory
Popular recommendation
Bag-In-Box
Custom Portable Reusable Drink Bags Stand Up Plastic Spout Pouches For Beverages Liquid Packaging
BIB Bag-in-box dispenser with butterfly valve vitop for drinking water wine juice
flexible packaging films custom
spout pouch bags custom
aluminum foil bag roll price
bag in box wholesaler
stand up coffee bag
spout pouch black wholesaler
eco friendly spout pouches manufacturer
sideguesst bag for coffee bag distributors.The number of packaging layers of moon cakes and Zongzi s
What should be paid attention to in the customized production of rice packaging bags.super pouch too
The printing principle of composite bags.eco friendly spout pouches custom
Various common sense of plastic packaging bags.valve plastic coffee bag
stand up pouch coffee packaging wholesaler!How to order universal vacuum packaging bags?
What are the aspects of food packaging?reusable Snack food bag Manufacturing
Food packaging bag.plastic pouches for food packaging
How to Select the Material of Food Vacuum Packaging Bag
Introduction to the relevant applications of plastic vacuum packaging bags.paper snack food bag manu
The advantages and development prospects of aluminum foil bags
Bag in Box is Developing towards Environmental Diversification.bag in box juice dispenser
Flexible packaging film roll Packaging Manufacturing.On the Scope of Use of Food Packaging Bags
Based on bag -type packaging bags.aluminum foil bag roll manufacture
Customized by aluminum foil bag manufacturer.aluminum foil bag large Manufacturing
What are the advantages of octagonal sealed packaging bags.bag in box 3L,5L,10L
Reasons for aging of liquid packaging bags.flexible packaging pouches
How to measure the thickness of food packaging bags?
Printing process of plastic packaging bags.Flexible packaging film roll Packaging distributors
How to judge whether the packaging bag is food grade?
Use degradable plastic bags to reduce ecological pollution