Your refrigerator with LED lights? More and more fresh supermarkets and stores have LED lights, but it may be for milk are often bad news.

The research shows that: the LED light will accelerate the milk deteriorate

A us study suggests that exposure to the amount of sunlight, such as LED lamp light source to milk quality has a big impact. (photo: LEDinside)

Cornell researchers found that even under the LED light source illuminate a few hours, will also speed up the milk deteriorate, even faster than milk increases with time in the microbial cause milk deteriorate. Researchers hypothesize that, under the condition of not being LED light, the quality of the milk can maintain good for two weeks. Deposit and face more milk with just four hours by LED lighting, in a general pervious to light the milk in the container, one-sided consumers choose the former. As businessmen began in dairy collection and sales areas use energy-saving light source such as LED lights, they may well be unknowingly damage the quality of dairy products.

"For some reason we like to see a bottle of milk on the shelf," senior researcher robin Dan du, is also a Cornell university assistant professor of food science. Installed in the transparent containers of milk may be very attractive, but may be virtually reduced the quality of dairy products.

Milk quality and nutritional value and is the sunlight and artificial light exposure is inversely proportional ratio, this is understandable. Riboflavin and other photosensitive composition in milk by light stimulation will become active, and release the electrons, will cause the loss of protein quality and fat oxidation. The final result is that the average person to describe the ambry of taste or plastic taste.

Currently on the market popular milk packaging will pervious to light, even used to guarantee the quality of milk is opaque plastic bottles are hard to avoid can let the milk deteriorate.

"Consumers want to drink the fresh quality for the best milk." Study lead author nicole Martin, is also the milk quality promotion plan of Cornell lab manager, said: "for the average consumer, fresh implications and product outer shelf life closely shut. This study shows that the illumination for the quality of milk is the main key decision metamorphism or not."

The wavelength of the LED light source and is used to illuminate the milk cans of different fluorescent lamp. LED lights are blue, usually between about 460 nm, and produce relatively larger at the center of the light wavelength. The center light wavelength is located close to the riboflavin absorption of light in milk, namely the researchers speculated that some damage to the nutrients in milk and quality.

Study co-author and professor Martin, of food safety: "we found that in the case of not subjected to the LED lamp, most after sterilization of milk is to keep the high quality for 14 days, the study provides new information for us, is pointed out that the direction of improve the quality of milk; for example, using opaque packaging."

Businesses use leds as energy-saving pipe become more common. The researchers suggested that milk producers to switch to opaque packaging method, so that the light is to reduce the influence to the lowest.