Ozone application in the food industry
- Clicks:373 Release time:2009/12/6
Ozone application in the food industry
The application of ozone in the food industry mainly has several aspects: first, sterilization of the air and equipment, equipment surface and overalls in the production workshop; second, sterilization and purification of production and processing water and preparation of high-concentration ozone disinfectant; third, cold storage disinfection and Food preservation.
(1) Air sterilization in the production workshop:
Microbial contamination in the production workshop is a very important factor affecting product quality. Ozone can not only effectively kill them, but also effectively remove the smell of the workshop. Through the application examples of the enterprise, the use of ozone disinfection can make the surface bacteria of the air, ground, console, utensils and other objects in the production workshop meet the standard, and the odor of some meat and poultry slaughter workshops is also significantly reduced.
(2), dressing room and overalls disinfection:
Most of the bacteria in the production workshop can be brought into the production workshop through the work clothes of the processing personnel. In severe cases, large-scale spread will occur, which should be paid enough attention. Most food processing companies use ultraviolet radiation to disinfect, due to the natural defects of ultraviolet radiation, the disinfection effect is poor, and ozone gas can penetrate various parts of the clothing, so the use of ozone to disinfect the overalls is an efficient and simple method.
(3) Sterilization and purification of production water:
Ozone in the water kills bacteria, viruses, microorganisms, etc., and the speed is faster, and the pollutants such as organic compounds in the water are completely removed without secondary pollution. This has special significance for food processing water. Usually, the production water is disinfected by chlorine preparation. Since the water source is increasingly polluted by organic chemical products, the chlorine preparation will produce chlorinated organic substances such as chloroform, dichloroethane and carbon tetrachloride. These substances are carcinogenic and thus EU countries. The use of chlorine series long-acting disinfectants has been banned and will be phased out in Japan. The ozone disinfection treatment does not produce secondary pollution compounds, and the bacteria are easily killed. At present, some food companies that use pasteurization, but pursue the appearance of food, are trying to use ozone disinfection instead of pasteurization.
(4) Preparing high-concentration ozone water as a new disinfectant:
Dissolve high concentrations of ozone in water. The ozone water produced has a strong broad-spectrum bactericidal effect and has a strong degradation effect on various pesticides, organic poisons and heavy metal ions. The high concentration of ozone water is re-sterilized and degraded by other harmful substances to become oxygen, leaving no residue in the water, no secondary pollution and any side effects.
(5), food cold storage and fresh storage cold storage disinfection:
The biological sources of cold storage are mainly molds, which are highly resistant to chemical disinfectants and survive under low temperature conditions. Experiments have shown that the use of ozone with a concentration of 6-120 PPM for 3-4 hours of disinfection can kill unbleached spores including extremely strong resistance. After the shutdown, the disinfection of the cold storage is arranged in about 3 days before the purchase. The application of ozone in food preservation can play the role of sterilization and mildew and slow down metabolism, and can be used in combination with refrigeration, air conditioning and packaging to improve the preservation effect of food.
Qingdao Weisite Electronic Purification Equipment Co., Ltd. provides professional design and manufacture of ozone disinfection and sterilization programs, and develops professional ozone sterilization guidance for various food units. We look forward to cooperating with major food units.
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