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Caffeine Content In Beverages To Be Identified By Home Test Kit

A new home testing kit to test the caffeine content of beverages such as tea, coffee and soda may be commercially available//. You can now clear your suspicion about the decaf label that claims reduced or nil caffeine content. The home based kit, produced by researchers at Washington University School of Medicine, is based on a dipstick analysis. The results of the present study have been published in the journal, Analytical Chemistry, a publication of the American Chemical Society.

‘We envisioned that a simple method to measure caffeine, even in hot beverages, such as coffee, would be of value to individuals and institutions wanting to verify the absence of caffeine,’ says study leader Jack H. Ladenson, Ph.D., a chemist at the university. ‘This will greatly assist individuals who wish to avoid caffeine.’

Ladenson hopes to develop a simple caffeine test in which test strips that are treated with a specific antibody will react by changing color in the presence of caffeine.

The new test will be designed to be qualitative only: It allows a person to quickly determine whether caffeine is present, but does not indicate the exact amount or concentration of caffeine. In preliminary tests using coffee and cola, an experimental version of the test effectively distinguished caffeinated versions of these products from their decaf counterparts, Ladenson says.

The researcher adds that he does not know when the test will be available to consumers or at what price. Further refinements are ongoing, he says.

Many consumers are increasingly trying to avoid caffeine due to unwanted health effects, including insomnia and irritability. Several studies have linked an increase in caffeine consumption with a higher risk of miscarriage among pregnant women. For years, the U.S. Food and Drug Administration has specifically advised pregnant women to avoid or limit their intake of caffeine.

But the caffeine content of foods and bevera
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