In the pet food industry, egg yolk contains lecithin, which includes inositol phospholipids that help maintain healthy pet fur. When pets lack inositol phospholipids, their fur may fall out, become dull, and lose its luster. By applying freeze-drying technology using an egg yolk freeze dryer, egg yolks can be preserved for extended periods while maintaining their nutritional value. This process is highly favored by both pet owners and pets alike.
Process of Making Freeze-Dried Egg Yolks
1. Egg Preparation
Start by selecting high-quality eggs and thoroughly washing and disinfecting them to remove bacteria and impurities. Carefully crack the eggs and separate the yolks from the whites. This step requires caution to keep the yolks intact. Alternatively, the eggs can be cooked first before extracting the yolks. Using raw egg yolks retains higher nutritional value and restores texture and taste better after rehydration. However, strict hygiene and sterilization measures are necessary for raw egg yolk preparation. Cooked egg yolks undergo heat treatment, eliminating pathogens and reducing food safety risks, making them more suitable as direct pet food.
2. Egg Yolk Pre-Treatment
Once the cooked eggs have cooled, carefully peel off the shells and separate the yolks from the whites. Since the yolks solidify during cooking, they are easier to separate. Ensuring the yolks remain intact enhances the freeze-drying results.
3. Freezing
Place the pre-treated egg yolks onto the trays of the egg yolk freeze dryer. Alternatively, use an ultra-low temperature freezer to freeze the yolks completely before freeze-drying. Rapid freezing helps retain the natural color and nutrients of the yolks.
4. Vacuum Freeze-Drying
The egg yolk freeze dryer precisely controls temperature and pressure during the freezing and sublimation processes, which is the most crucial step in freeze-drying. Under a vacuum environment, the water content in the yolks transitions directly from ice to vapor, effectively removing moisture while preserving nutritional value and natural color. This process occurs at low temperatures to prevent nutrient loss due to heat. The freeze-drying duration depends on the thickness and quantity of the yolks.
5. Packaging and Storage
After freeze-drying, the egg yolks become lightweight and fragile. They should be portioned and sealed in airtight packaging to prevent moisture and air exposure, thereby extending shelf life.
Through the application of freeze-drying technology, freeze-dried egg yolks have become a "star" product in pet food. Scientific freeze-drying techniques ensure maximum nutrient retention while allowing long-term storage. The egg yolk freeze dryer plays a vital role in maintaining product quality and stability, making freeze-dried egg yolks a nutritious and convenient choice for pet owners.
If you are interested in our Freeze Dryer Machine or have any questions, please feel free to Contact us. As a professional manufacturer of freeze dryer machine, we offer a variety of specifications, including household, laboratory, pilot, and production models. Whether you need equipment for home use or larger-scale industrial equipment, we can provide you with the highest quality products and services.
Post time: Feb-28-2025
