Surface contamination of fruits and vegetables is a problem for growers, distributors and retailers. Mold and bacteria can have severe effects causing produce to spoil.
Sanuvox UV IL Food Safe purifiers for food products and their packaging are exceptionally safe and versatile disinfection systems for surface, packaging and conveyor applications designed to bask meat, fish, poultry, fruits and vegetables, baked goods and packaging with UV-C germicidal light. The UV system is extremely effective at destroying surface contamination while extending product shelf-life. Only a few seconds of exposure can achieve up to 99.9999% destruction of common biological contaminants that are problematic in the food industry.
Incorporate the UV fixtures into the production line (i.e. over the conveyor belts) to bask the products and surfaces prior to packaging, maintening a sterile product ready for distribution and consumption.
As the system is incorporated into the production line, the lamps are covered with Teflon, that will trap pieces of grlass in the event of breakage.
When the objective is to prevent and destroy microbial contamination, such as bacteria and fungi that occur naturally on fruit and vegetable surfaces, and are responsible for premature decay, Sanuvox offers the right solution with its high efficiency patented air purification system. The process will leave no residue as is found using chlorine or irradiation treatments with gamma rays. At the producer level, sterilization of fruits and vegetables could reduce the use of pesticides.
IL Food Safe purifier for food products equipped with parabolic reflectors and Teflon coated lamps will be positioned equidistant across the conveyor, parallel to it. Computerized sizing programs taking into account the speed of the conveyor and the contaminant(s) to be treated will determine the size of the lamps.
OPERATING THE EQUIPMENT
The end user will determine the location and design of the lamp assembly enclosure that will attach to
the conveyor guaranteeing there is no direct UV exposure to employees. Fruits and/or vegetables will be exposed for a predetermined period of time to UV light as they move through the enclosure on the conveyor. This predetermined time will be sufficient to sterilize the fruit and/or vegetable pathogens and slow down ripening process.
RESEARCH ON STRAWBERRIES
Researchers from the Department of Food, Science and Nutrition (Laval University, Quebec, Canada) demonstrated that exposing strawberries to ultraviolet light prolongs their shelf life. Freshly picked strawberries exposed to germicidal ultraviolet (UV-C) have retained their freshness for 14 to 15 days, while untreated freshly picked strawberries were “almost done” on the tenth day.
The conclusions from this research have been published in the Food Science Journal. Refrigeration, which slows the growth of microorganisms and fruit ripening, allows a limited but effective mean regarding conservation of strawberries.
“Exposure to UV-C is a very interesting approach to facilitate the marketing and distribution of fresh fruits and vegetables”, says researcher Joseph Arul. This treatment slows the ripening of strawberries: they remain firm longer, their respiratory rate is lower, their color is more attractive and the taste is not altered. “It is believed that exposure to UV-C would kill some mold on the surface of the fruit or, more likely, the treatment would stimulate the defense mechanisms of the produce,” suggests the researcher.
Arul’s team has already demonstrated the benefits of UV-C exposure for the conservation of carrots, broccoli, tomatoes and blueberries.
Arul does not anticipate negative reactions from consumers, unlike gamma irradiated food, or more recently, genetically modified organisms. “The technique is more acceptable to a consumer. In low doses, UV is beneficial. It is a light source and I do not think people have problems with that.”
WHERE TO INSTALL
Many facilities can be equipped with the IL Food Safe, like vegetable growers, fruit and vegetable importers, hydroponic producers, and value-added packagers.
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