Many sunscreens contain substances that may harm coral reefs and marine ecosystems.
Because of this, scientists are searching for more sustainable alternatives, according to Popular Science.
A new study from Jiangnan University in China, published in Trends in Biotechnology, focuses on a substance called gadusol.
Gadusol occurs naturally in the eggs of some fish species and helps protect against UV radiation.
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Researchers believe the substance could be used in future sunscreens, but extracting it directly from nature is difficult.
Bacteria in the laboratory
To solve this problem, the researchers used E. coli bacteria in a laboratory setting. They modified the bacteria’s genes so they would begin producing gadusol.
According to the study, production increased significantly after the genetic modifications. The researchers described the results as promising.
Experiments also showed that the substance may have antioxidant properties. This means it could potentially help protect cells from sun-related damage.
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Not ready yet
The new method has so far only been tested in laboratories.
Researchers have not yet examined whether the substance works as effectively as conventional sunscreen or whether it is safe for long-term use.
As a result, it may take time before such products reach the market. However, co-author Ruirui Xu estimates that the first products could be ready within two years.
This means that the sunscreen of the future may eventually be produced with the help of bacteria instead of traditional ingredients.
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Sources: Popular Science and Trends in Biotechnology.
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