вторник, 21 октября 2008 г.

Mature bananas were blue in the ultraviolet

The group of scientists from universities in Colombia and Innsbruck found that irradiation with ultraviolet bananas shine bright blue, reports New Scientist. The work of scientists published in the journal Angewandte Chemie.

According to the scientists responsible for the effect of products of chlorophyll. They accumulate in the skin in the process of ripening fruit. Similar processes are quite frequent in nature: for example, yellowing leaves. From other plants bananas distinguishes the fact that products of the image of a stable connection, which shine a bright blue light in the ultraviolet irradiation.

Currently, researchers are constrained to answer the question of the role played by these compounds in the life of bananas. As one of the versions is that they are antioxidants. One of the functions of these substances is to protect the cell walls from damage. Indeed, bananas better than the rest of tropical fruits carry a long journey from producer to consumer.

Another possible reason is as follows. Scientists have found that the peak brightness luminescence accounts at the time when most mature bananas. Researchers believe that this could be a sign for animals that can see in the ultraviolet.

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