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UV Type of light


Pulse UV

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Shenzhen Blue Spectrum Rick Technology Co., Ltd.
Lamplic UV pulsed light is a kind of light that can emit high energy in a very short time (10-100 microseconds) in the form of light radiation, resulting in extremely high peak power (up to megawatt level, hundreds of thousands of times the intensity of sunlight reaching the ground).
Lamplic UV pulse intense light sterilization technology makes up for the shortcomings of traditional sterilization technology. With its unique advantages, it will replace traditional sterilization technology. It is an air sterilization technology with great development potential. Pulsed intense light technology is a new technology which is expected to replace the traditional physical and chemical sterilization methods. It uses instantaneous and high intensity pulsed light energy to kill chemical pollutants (such as formaldehyde, phenyl compounds) and biological pollutants (such as bacteria, fungi and viruses) in the air efficiently. The decomposition of organic particulate matter in the air can effectively and quickly purify and sterilize large space. It can effectively and quickly sterilize large space and remove dampness and odor, and it will not produce any secondary pollution. Even bacteria with strong resistance to ultraviolet radiation and resistance can be instantly killed. Pulsed intense light used in densely populated places can quickly and thoroughly kill viruses, bacteria and other microorganisms in the air, prevent the spread of pathogens, and really play a role in purifying the air.
The bactericidal mechanism of Lamplic UV pulsed light can be attributed to photothermal and photochemical effects. Most studies believe that its bactericidal effect mainly depends on photochemistry. Pulsed intense light includes 25% ultraviolet spectrum, which plays an important role in sterilization. Some experimental studies have shown that if the intense pulsed light is passed through a filter which can remove the ultraviolet region below 320 nm, the filtered intense pulsed light will lose its bactericidal effect [2].
After the microorganisms were irradiated by intense pulsed light, the substances in the cells changed and became inactivated. Ultraviolet sterilization can destroy the structure of pyrimidine dimer (mainly thymine) of bacteria. Dimers with altered structure can inhibit the formation of new DNA strands and thus inactivate microorganisms. In addition, ultraviolet light treatment can mainly lead to the formation of "spore light products" in bacterial spores. DNA single-stranded, double-stranded and cyclobutane pyrimidine dimer destruction. At present, most scholars believe that pulsed intense light sterilization is a multi-target process. DNA denaturation is the main cause of microbial death, accompanied by the destruction of cell membranes, proteins and other macromolecular substances. Kazuko [3]
The destructive effects of continuous ultraviolet light and PL on yeast cells were compared. The results showed that yeast cells treated by PL had vacuole expansion, cell membrane deformation, cell shape change, and a large number of free proteins. The structure of yeast cells treated by continuous ultraviolet light was basically the same as that before treatment, which indicated that PL had the same effect on yeast cells. It can destroy the cell membrane of yeast cells. Some scholars have found that near-ultraviolet radiation can damage the function of yeast cell membrane, but there are no reports about the changes of yeast cell structure caused by near-ultraviolet radiation. After PL treatment, the heat generated by xenon lamp or the temperature of sample after PL absorption increases, thus achieving thermal sterilization effect. Hiramoto found that Aspergillus Niger after PL treatment absorbed a lot of light, increased temperature and killed fungi, which confirmed the existence of photothermal sterilization mechanism. Pulsed light provides remarkable shelf life extension and preservation benefits for various foods. After pulsed light treatment, baked foods, seafood and meat, fruits and vegetables, as well as many other foods, showed that the microbial load on baked foods decreased, shelf life increased, safety increased, and nutritional properties remained unchanged.
Baked food: 2 unpackaged breads, each cut in half, stored in a polyethylene film bag in the laboratory. The untreated samples were stored at room temperature for 5 to 7 days. There were fungi colonies, and 11 days later, they were covered with fungi. In the same case, no fungi appeared on 11 days after pulsed light treatment. The same results were obtained from other baked goods such as bread slices, chocolate cupcakes, baked pies, tortillas and bagels.
Seafood: Peeled shrimps (shrimps) are treated with pulsed light and stored in the refrigerator for 7 days. They are still edible, while untreated shrimps show extensive microbial degradation, discoloration and malodor, and are not suitable for consumption. The shelf life of Microbiology and sense of fish fillets treated by pulsed light has been significantly prolonged.
Meat: Extensive experiments on various meat products show that pulsed light can be used to enhance shelf life and safety of products, and the recovery counts of all microbial types can be reduced by 1-3 logarithms. The wings of bare chickens were immersed in a mixture of three Salmonella strains (bacterial attachment after 5 minutes). The inoculated samples were about 5 logs/cm (high level) and 2 logs/cm (low level). After pulsed light treatment, the similar bacterial count was reduced to 2 logs/cm. Listeria monocytogenes was inoculated in mixed beef sausages. The low and high levels of enema were inoculated at 3 and 5logs/ cm, and also decreased by pulse light to 2logs. The nutrient composition and protein, riboflavin, nitroamines, benzo-flowers and vitamin C of the treated samples were not different from those of the untreated samples.
Riboflavin can absorb visible light strongly and is sensitive to degradation of light, heat and oxidation. The results from beef, chicken and fish show that even excessive pulsed light treatment does not affect the concentration of riboflavin.
Many experiments on retail beef have proved that the effect of pulsed light is very important for the improvement of Microbiology and sensory shelf life. Pulsed light is non-selective. When it is used to treat meat, all exposed microorganisms can be killed. Total aerobic count, lactic acid bacteria, enteric bacteria and Pseudomonas count are similarly reduced by about 13 logarithms. Pulsed light treatment generally results in 1-3 logarithmic decreases for media, packaging or related sample surfaces, as well as complex surfaces such as meat (with small surface pits, cracks and wrinkles, which can prevent microorganisms from exposure).
Water: Pulsed light can also be used to treat drinking water or combined water effectively. Laboratory experimental models show that pulsed light treatment has potential effectiveness in inactivating terrestrial Klebsiella, Cryptococcus parvus oocysts and other microorganisms in water or suspended state, while chlorine treatment methods used in urban water supply system and traditional UV water treatment have only no effect on oocysts. Attention has been paid to the effects, and the oocysts of Cryptosporidium (now known as large-scale outbreaks of cryptosporidium) are resistant to chemicals such as KMnO4 and fixatives. Miehael Arrowood's experiment at the US Centers for Disease Control tested the infectivity of mice in vivo. The original suspension containing 6 or 7 logs/ml terrestrial Klebsiella suspension and 6 or 7 logs/ml Cryptococcus parvus oocyst suspension were treated with 2-pulse flash, and each flash was less than 0.5 J/cm, which was sufficient for the existence of viable bacteria. The bacterial suspension can be made non-infectious by a single pulsed light flash at 1J/cm.
Adaptive domain
(1) Used in drinking water treatment equipment such as domestic direct drinking machine, small-scale domestic water purification equipment, food processing water treatment equipment, pure water, mineral water treatment equipment and so on.
(2) It can be applied to domestic sewage, industrial sewage, swimming pool, aquaculture plant sewage and other small-scale sewage treatment equipment. It can also be applied to large-scale sewage treatment equipment in sewage treatment plant with strong treatment capacity.
(3) Applied to beverage sterilization equipment, such as juice, milk, soybean milk, soda, tea drinks, etc., and applied to solid food, drug surface sterilization equipment, such as peanuts, melon seeds, candy, bread and various capsules.
(4) Applied to portable sterilizing lamps, various packaging sterilizing equipment, sterilizing cabinets, wardrobes, refrigerators, medical appliances sterilizing equipment, public goods sterilizing equipment.
(5) Applied to small air purifier, automobile air sterilizer, indoor air conditioning, central air conditioning and other air purification and disinfection equipment.
(6) Application of various light curing fields, including automotive parts, wood curing, electronic devices, integrated circuits, glasses and other industries of gluing, painting, coating, printing, printing, injection, and greenhouse planting room to assist plant growth and insecticide.

Shenzhen Blue Spectrum Rick Technology Co., Ltd.
Pulse UV