CAS technology (Cells Alive System) is a technology transferred from Japan and new in Vietnam since 2013. This is one of the effective methods of post harvest storage, Promising to solve the problem of output for agricultural products in Vietnam.
Advantages
CAS is an advanced refrigeration technology that is capable of keeping the membrane and cellular structure of products intact for long periods of time, which can last up to 10 years depending on storage requirements. When frozen, the product retains the freshness as the new harvest. So this technology creates fresh frozen products.
CAS solves most of the disadvantages of other common preservation methods, such as the denaturation of the product in the freezing method, the short shelf life of the irradiation method, the amount of preservative residue on the product, easy to affect the health of the user as with the chemical method. The CAS technology is suitable for preserving products from the health sector to the agricultural, seafood and food sectors.
CAS: Simple principle for high efficiency
Super-cold water is a state of freezing even below 0 degrees Celsius or below. Based on that, Norio Owada invented the CAS technology with the following criteria: “simple, universal, easy to use and safe”. CAS technology uses magnetic fields, similar to microwave ovens but incorporates additional cooling systems.
CAS is an effective combination of fast freezing with magnetic field fluctuations, temperatures from -30 ° C to -60 ° C and magnetic fields in the 50 Hz range to 5 MHz. After a short freezing time, the product center has reached -18 ° C by the cold process. During freezing, magnetic oscillations from the CAS device have the ability to prevent free water in the cell and the water in the living compound from freezing to a large mass that only forms microscopic particles. Because these tiny ice particles are not strong enough to break down the cell membrane, the cell structure remains intact, so that the quality, color, and taste of the preserved product do not change over time. long time. Based on this preservation method, the product can be preserved for many years and the quality remains unchanged.
CAS consists of two modules in the line of equipment and technology: the CAS freezer with quick freezing unit and magnetic oscillator, capable of bringing temperatures down to -60 degrees Celsius in a short time. Along with a cold storage with air conditioning function, ensure the temperature distribution in the warehouse at -25 C to preserve the product. Depending on the purpose of use, this technology has different designs and sizes.
Simply installing CAS equipment or adding CAS functionality to your existing cooling system can keep fresh for up to 10 years from seafood to fresh food and even milk, coffee, fruit juices, cakes candy and processed food … Depending on the type of food, agricultural products, aquatic products that use CAS with different magnetic strength.
Freeze everything
CAS has been put into use and rapidly popular in the field of seafood, agricultural products, food … not only in Japan but also many other countries such as USA (tuna), Canada (cherry) , Mexico (mango and butter), China (canned fruit, frozen vegetables, bamboo shoots, mushrooms) … In addition, this technology also applies to the medical field. The principle is simple, flexible, CAS easily fit the system of frozen body organs such as visceral, nervous, blood, and also heart. If a heart had to be implanted within 10-14 hours, CAS heart can live up to 10 days at minus 30 to minus 40 degrees Celsius. Health Biobank (Friborg, Switzerland) believes in using, storing teeth as an alternative source of stem cells.