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A little knowledge about Yisijia pet food - new technology for making pet food: vacuum freeze-drying (freeze-drying) technology
发布时间 : 2024-02-04
作者 : jumbo
访问数量 : 50
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Definition: Vacuum freeze-drying technology is to freeze wet materials or solutions into a solid state at a lower temperature (-10℃~-50℃), and then remove the moisture in the liquid state under vacuum (1.3~13Pa) The drying technology that directly sublimates into gaseous state and finally dehydrates the material can discharge more than 95 to 99% of the water. It is also called sublimation drying.

1

Process flow and advantages

The traditional food drying method is mainly heating and drying. The food is heated to evaporate the water to achieve the purpose of drying. , but this drying method leads to serious loss of food quality, loss of nutrients, and essential changes in the properties, color, and taste of the food, and the edible value is greatly reduced.

Compared with traditional drying methods, pet food made by vacuum freeze-drying has the following advantages: (1) There are pores in the pet food raw materials and have good rehydration properties; (2) Inhibition of microorganisms Growth and enzyme activity, pet food maintains its original properties and freshness after being exposed to water, and quickly returns to the state of raw meat, retaining nutrients to the greatest extent; (3) Freeze-dried meat particles can eliminate more than 95 to 99% of water portion, can be stored for a long time without deterioration.

Therefore, the vacuum freeze-drying process can ensure that the shape, color, taste and nutritional content of pet food are basically the same as fresh meat, providing pets with a food experience like fresh meat.

Yisijia pet food science - new pet food production Technology: Vacuum Freeze-Drying (Freeze-Drying) Technology

2

Advantages compared with traditional drying technology

Common traditional drying technologies mainly include: sun drying, oven drying, boiling drying, spray drying and vacuum drying etc., (1) This type of drying technology generally uses heating to evaporate water. Although the water in the food is discharged, nutrients are also lost. (2) The tissue structure of the food is destroyed during the heating process. When the pet eats it, the food no longer has the taste and nutrition of fresh meat, so it is not suitable for consumption. (3) Traditional drying technology cannot completely remove the moisture in food, so it is easy to cause food deterioration during storage and transportation.

In contrast, vacuum freeze-drying technology has the following advantages:

(1) Freeze-drying is performed at low temperatures, so it is particularly suitable for many heat-sensitive substances. Such as proteins and microorganisms, they will not be denatured or lose their biological vitality. During the freeze-drying process, microbial growth and enzyme action cannot proceed. Therefore, the original properties can be maintained.

(2) It is dried in a frozen state, so the volume and shape of the fresh meat are almost unchanged, the original structure is maintained, and the phenomenon of concentration does not occur. The dried fresh meat is loose, porous and sponge-like. When water is added, it dissolves quickly and completely, and almost immediately returns to its original properties.

(3) Vacuum drying technology can discharge more than 95-99% of the water, so that the dried food can be stored for a long time without deterioration, making it easy to transport and preserve.

3

The benefits of pet eating freeze-dried food

(1) Freeze-dried food is closest to native food and is in line with the eating habits of pets. Dogs evolved from wolves and have the habit of eating carnivores. Freeze-dried food can retain the properties and nutrients of fresh meat to the greatest extent, recover quickly after being exposed to water, and has a super delicious taste, making it the best choice for pets.

(2) It has the best reducing properties and the most comprehensive nutrition retention, making it the high-end dog food currently on the market. Freeze-drying technology only condenses the moisture in fresh meat into ice after freezing it in a vacuum environment, and then volatilizes its vapor phase through heating. This processing does not change the original tissue structure of the fresh meat, and trace elements remain in the food, providing comprehensive nutrition. , is a high-end pet food for pets.

(3) Feeding freeze-dried food is just like feeding fresh meat and vegetables, without any additives. The processing of freeze-dried food adopts physical processing methods without adding any substances. After rehydration, it has the same taste, properties and nutritional content as fresh vegetables and meat.

Yisijia Pet Food Popular Science - New Technology for Pet Food Production: Vacuum Freeze-Drying (Freeze-Drying) Technology

4

Application fields

Food field: fruits, vegetables, meat, aquatic products, etc.

Pharmaceutical production: Western medicine production, Chinese herbal medicine production.

Medical and health care: plasma, arteries, skin, cornea, organs and tissues, etc.

Biological products: live bacteria vaccines, live virus vaccines, etc.

Other biological products: human leukocyte interferon, urinary hormone, etc.

It can be seen that pet food produced by vacuum freeze-drying technology has advantages that other pet foods cannot match. Yisijia will also make full use of its own technology, products, capital, technology and other advantages to provide pets with domestic high-end pet food experience and help pets grow healthily.

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