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What is nitrogen-making food packaging machinery? What are the characteristics a

2019-05-05 15:48 admin
Nitrogen making machine is a kind of equipment which takes air as raw material and uses physical method to separate oxygen and nitrogen to obtain nitrogen. [Hongbo Nitrogen Machine] What is Nitrogen Food Packaging Machine? What are the characteristics and functions of nitrogen-making food packaging machinery?

Function of Nitrogen-making Food Packaging Machinery:

Owing to the inertia of nitrogen at room temperature, it is not easy to breed bacteria. It is widely used in the preservation and storage of beverages, fruits, vegetables, cakes, tea, Chinese herbal medicine, pasta and other foods. It can fully maintain the original color, fragrance and taste, and its storage quality is obviously better than mechanical refrigeration.

1. Food packaging

Nitrogen-filled packaging is rapidly replacing the traditional vacuum packaging. It is applied in the packaging of fried food, puffed food, baked food, fresh sliced agricultural products, special cheese and fresh meat. Nitrogen-filled packaging can better maintain the taste, taste and nutrition of food, and its application field is expected to further develop.

Food deterioration is mostly caused by oxidation reaction with the participation of oxygen dioxide, which promotes the reproduction of microorganisms and bacteria and leads to food spoilage and deterioration. As a kind of asphyxiating inert N2, it has asphyxiating and inhibiting effects on bacterial reproduction in pyrethroids. The purpose of using N2 is to eliminate O 2, slow down the oxidation and respiration of food, and N2 has little solubility in water and oil, so it can be used as a better antiseptic and fresh-keeping gas for food.

In addition, nitrogen-filled packaging can also play a good role in protecting the shape of food packages; prevent crisp and fragile food from being crushed; avoid the pressure bonding of packaged food due to unbalanced internal and external pressure, making its texture harder; even irregular food can maintain the beauty of the surface of packaging body, reduce the damage of packaging materials caused by surface folding. And spoil the food.

2. Drink agitation

Oxygen dissolved in liquids and oils can cause them to precipitate. Oxygen in these liquids can make them worse and shorten their life. A method called "churning" (compressed gas churning liquid through a sprayer) is used to process gaseous nitrogen into the liquid during processing. These nitrogen bubbles go out to prevent oxidation, decay and fading of carbonless beverages (juice, tea and milk) and edible oils (peanuts, olives, sunflower and rapeseed oil).

3. Nitrogen expansion

Other types of food need gas to increase their volume. The use of nitrogen "fluffy" food oils, mayonnaise, barreled margarine or peanut oil products can increase their volume and expansion force, thereby prolonging their life.

Specific application of nitrogen in food industry:

Oxygen can be removed to prevent oxidation, spoilage and fading of carbonated beverages and cooking oils. If cork cork is used, mildew can be prevented in cork bottle.

2, puffed, fried food: can prevent a small amount of water to make food soft and tasty, and the shape of packaging is good, transportation is not easy to crush.

3, pastries, baked goods, egg yolk pie: Nitrogen can extend the preservation time, prevent deformation and crushing in transportation.

4. Milk powder, soy milk powder: The use of trace nitrogen can prevent or reduce the caking phenomenon caused by long-term extrusion storage of milk powder.

5, cereals, nuts, fruits and vegetables: Nitrogen can prevent pests from harming organisms, leaving trace oxygen can also reduce the respiration rate of fruits, the preservation effect is obvious.

6, candy, snacks: mainly suitable for the use of airtight bags packaging.

Equipment performance characteristics:

Aiming at the demand of nitrogen-making equipment in food packaging, fruit and vegetable air conditioning storehouse and other industries, our company has developed and designed HBFD series food nitrogen-making machine, which has the characteristics of stable and reliable operation, convenient and fast start-up, fast nitrogen-producing speed, no special training of operators, compact structure and small occupation area.

Process flow:

Compressed air enters the nitrogen machine through filters. Under the action of food grade carbon molecular sieve, oxygen is adsorbed by molecular sieve, and nitrogen is transported from the outlet to the use point or proportioned with other gases. Pressure swing adsorption (PSA) uses a set of work and a set of regeneration principles to achieve the purpose of recycling.