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5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
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ScienceShot: How Natural Is Your Cola?
6 May 2011 1:32 pm
Water, sugar, and caramel coloring are the main ingredients in most soft drinks, but some "natural" beverage makers add cola nut extract to the recipe—and extra cents to the price tag. Now, researchers in Italy have developed a method to test whether these premium colas live up to their billing. The team took 1 liter of a particular naturally flavored soda brand and dumped in millions of tiny beads, each coated with a different sequence of amino acids. Some of the amino acid combinations latched onto the cola nut proteins in the soft drink. The researchers then separated out the captured proteins and identified them. When the team followed the same procedure with a liter of Coca-Cola, which does not claim to use cola nuts in its recipe, they found no protein signature. The technique, published today in the Journal of Proteome Research, could help consumer groups test the authenticity of naturally flavored sodas or other beverages, the researchers write.
See more ScienceShots.