Technical data of ozone application in food industry

Technical data of ozone application in food industry I company profile Nanjing Guolin Ozone Technology Co., Ltd is a diversified and specialized high-tech enterprise relying on the international Ling first ozone and anion technology, and relying on large industrial ozone system, small and medium-sized industrial ozone generator, as well as the design, production and sales of civil ozone, anion purifier and various purified water equipment Based on the strong support of Jiangsu high tech Research Institute, combined with its own international advanced ozone core technology, kg level ozone system was produced in China in 2001 The fault free operation record of the whole machine for 3500 hours is realized Nanjing Guolin Ozone Technology Co., Ltd has 76 employees, including 6 engineers, 15 professional engineers and more than 40 technicians The average education level of the employees in the sales department is above junior college It is a typical knowledge technology intensive enterprise Our products are widely used in pharmaceutical, biological products, food and beverage, electronic chemical industry, medical and health fields, helping a large number of enterprises to pass GMP, HACCP, QS and other compulsory certification, which has been unanimously praised by customers The company has various types of machine operation site, can provide small test for customers, welcome new and old customers to visit and guide Company tenet: customer first, service intention 2、 Ozone brief introduction ozone O 3, named for its unique smell Its English name ozone is transliterated according to the Greek "stink" Ozone has a fishy smell As a gas, it is light blue As a liquid, it is dark blue and soluble in water Ozone has the advantages of strong bactericidal power and no secondary pollution It is an allotrope of O2, which has the same composition elements and different composition forms The chemical property of ozone is its strong oxidation ability, and its redox potential is only inferior to that of F2 This can be seen in Table 2 Table 1 Comparison of redox potential name molecular formula standard electrode potential (V) f 2 2.87 Ozone O 3 2.07 hydrogen peroxide H 2 O 2 1.78 Permanganate particles MnO 4 1.67 chlorine dioxide ClO 2 1.50 chlorine CL 21.36 o 21.23 3 Characteristics of ozone disinfection: Ozone is an allotrope of oxygen It is an unstable light blue gas at room temperature It has a fishy smell and a "fresh" smell at a small amount Ozone has a very strong oxidation capacity The redox potential in water is 2.07v, next to the fluorine potential of 2.87v, ranking the second place Its oxidation capacity is higher than that of chlorine (1.36v) and chlorine dioxide (1.5V) Because ozone has a strong oxidizing property, it has a strong killing effect on bacteria, molds and viruses This effect is usually a comprehensive effect of physics, chemistry and biology (1) Universal ozone has obvious inactivation effect on almost all bacteria, viruses, molds, fungi, protozoa and oocysts, and the sterilization time is very fast, 300-600 times of chlorine and 3000 times of ultraviolet The sterilization mechanism of ozone, Roy and other research reports, ozone can destroy the four polypeptide chains of virus capsid protein and cause RNA damage; Kim and other reports, during the process of ozone action, RNA in phage can be released, and electron microscope observation shows that phage is broken into small pieces It is also believed that ozone can react with lipid double bond of bacterial cell wall, penetrate into the interior of bacteria, act on lipoproteins and lipopolysaccharides, change the permeability of cells, thus leading to bacterial dissolution and death (2) Sexual ozone disinfection uses air as the medium and does not need any other auxiliary materials and additives The ozone generator produces a certain amount of ozone in the process of disinfection In the relatively sealed environment, the diffusion is uniform and the inclusiveness is good It overcomes the characteristics of many dead angles in the ultraviolet sterilization, and can achieve the goal of rapid disinfection and sterilization In addition, it has a wide sterilization spectrum, which can kill a variety of viruses such as bacterial reproduction, spores, hepatitis A and B virus, fungi and protozoa, destroy Botox, toxin and Rickettsia, etc., and has a strong function of removing moldy, fishy, smelly and other peculiar smell (3) the characteristic of high purity ozone which decomposes into oxygen rapidly and naturally is the unique advantage of ozone as a disinfectant Ozone is produced by using oxygen in the air In the process of disinfection and oxidation, the excess oxygen (o) is combined into oxygen molecule (O2) 30 minutes later, and there is no residue, which solves the problem of secondary pollution caused by disinfectant disinfection method, and eliminates the re cleaning after disinfection (4) convenience ozone sterilizer is generally installed in clean room or air purification system or sterilization equipment (such as ozone sterilization cabinet, transfer window, etc.) According to the sterilization concentration and time verified by debugging, set the time opening and running time of sterilizer, which is convenient for operation and use And use formaldehyde fumigation disinfection time is long, and ozone disinfection can be used regularly every day (5) economy: compared with other methods, ozone disinfection has great economic and social benefits through its use and operation in many pharmaceutical industries and medical and health units In today's rapid industrial development, environmental protection is particularly important, while ozone disinfection can avoid secondary pollution caused by other disinfection methods 4、 The comparison of traditional disinfection methods and ozone disinfection traditional disinfection methods are mainly three kinds: one is ultraviolet disinfection, the other is reagent disinfection, and the third is heating disinfection These methods have been used by most people Their safety and reliability have been confirmed by long-term practice People are assured of them But, everything has two parts, they also have their own defects The main problems of ultraviolet disinfection are: it has a small penetration force, and the disinfection effect is not good where the ultraviolet radiation cannot reach; its sterilization ability decreases with the increase of use time, and the lamp life is short, the replacement is too frequent, and the operation cost is high Chemical reagent disinfection, such as formaldehyde fumigation, is troublesome to operate, with long fumigation time and secondary pollutants, which is harmful to human body It takes 8 hours to do one formaldehyde re fumigation, and the residues are attached to the walls of the clean room and the surface of the equipment, which needs to be erased Within a few days after disinfection, the number of suspended particles will increase Heating disinfection includes dry heat and damp heat Its disadvantages are high temperature and high energy consumption Some items such as some raw materials, instruments and plastic products are not suitable for heating The disadvantages of the above three traditional disinfection methods are objective, but people have to use them before there is no better way to replace them If we can make full use of the advantages of ozone and make up for the shortcomings of the above methods, it will open up a channel for ozone disinfection into drug production In fact, ozone disinfection has many unique advantages For example, compared with ultraviolet disinfection, ozone disinfection has strong penetration and no dead angle There is no reduction due to its sterilization ability with the increase of use time; compared with chemical reagent disinfection, it is simple in operation, short in disinfection time, no secondary pollution, no harm to human body, no pollution on the sterilized substances, and no increase in the number of suspended particles in the air; compared with heating disinfection, Ozone has low energy consumption and can be sterilized at room temperature It is also very convenient to sterilize some articles that are not suitable for heating, such as some raw materials, instruments, plastic products, etc 5、 The application and research of ozone as early as in the 19th century, people have realized the strong oxidation effect of ozone, and found that ozone has oxidation effect on wood, straw, starch, plant pigment, natural rubber, fat, animal and plant oil, alcohol and other substances In 1868, de gebeth obtained * items of ozone application technology, using ozone to oxidize coal tar mixture into products suitable for coating and painting In 1873, ozone was used in sugar refining and flax bleaching in Europe Over the past 100 years, ozone has been applied in many fields and made great contribution to the development of human production technology The application of ozone can be divided into four fields: water quality treatment, chemical oxidation, food processing and preservation, and medical treatment The world has formed an independent ozone technology industry and sector The International Ozone Association (IOA), established in 1973, is located in Canada The association holds international conferences every two years to exchange papers and reports on the development of ozone technology in various countries IOA regional organizations are generally established in developed countries for academic exchanges After World War II, ozone application technology has made great progress in the world First of all, in 1902, Paderborn, Germany, established * large-scale water plants that use ozone to treat water quality and pioneered ozone water treatment Now there are thousands of ozone water plants in the world, and the application of ozone in water plants in Europe, America, Japan, Canada and other countries has reached popularity Almost all mineral water and purified water manufacturers are equipped with ozone equipment In the early 1970s, the United States began to use ozone to treat domestic sewage, mainly for sterilization and disinfection, removal of pollutants, decolorization and other discharge standards In Japan, wastewater is treated with ozone and used as reclaimed water in water shortage areas In recent years, the United States, Japan, Germany, France and other countries have established large-scale ozone sewage treatment plants Secondly, industrial application of ozone is also very common, mainly used in chemical industry, petroleum, papermaking, textile and pharmaceutical, fragrance industry The application of food industry is more popular In 1904, Europe used ozone to preserve milk, meat products, cheese, protein and other foods In the late 1930s, 80% of the refrigerated egg stores in the United States were equipped with ozone generators After World War II, ozone was used in storage, manufacturing and transportation of fruits and vegetables in Europe, America and Japan In medical treatment, Japan used ozone for physical therapy during World War II At present, ozone has many uses in medical treatment in the world, such as air disinfection in wards, operating rooms and large laboratories, disinfection of medical devices with ozone water, treatment of dental diseases with ozone (oral surgery and keeping oral sterile),