The study, by the United States Department of Agriculture and a specialist lighting manufacturer, found that the typically dark and damp conditions found in people's fridges were a haven for strawberries to go off.
But, when they installed UV LED lamps, spoilage time for the shop-bought soft fruit was delayed and they were still fresh after nine days - faring much better than the darkened berries when compared by their weight, moisture content, concentration of certain chemicals, visible damage and mould growth.
The special lamps emit UV light at a wavelength similar to natural sunlight that passes through the earth's atmosphere, which until recently was only possible using UV fluorescent tubes.
Previous tests using the traditional method for simulating sunlight ended up drying the delicate fruit out, and researchers found that the long periods of exposure to UV light required to keep mould at bay could only be achieved if they used the new UV LED lamps.
Lead researcher, Steven Britz, explained their approach: "UV-LEDs presented the opportunity to try low power devices that work well in the cold and can be engineered to work in small spaces such as refrigerator compartments."
Researchers say that the typically dark and damp conditions found in people's fridges are a haven for strawberries to go off.
LEDs are now a common feature in domestic and commercial light fittings and outperform traditional bulbs in most tasks thanks to their long life and efficiency.
The scientists used the latest generation of LEDs as they are capable of emitting light across a wide spectrum of frequencies from ultra violet to infra-red, and can be controlled to emit specific kinds of ultra violet light.
The team's next step is looking at ways to adapt the technology for home use, explained Remis Gaska, president and CEO of SETi, the technology firm which developed the UV LED lamps.
He said: "These findings are expected to have a major impact on the appliance business to extend the shelf life and preserve nutritional value of fresh produce while reducing waste and saving money for every household."
Source: dailymail.co.uk