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xanthine

A Dictionary of Food and Nutrition | 2005 | | Copyright

xanthine A purine, intermediate in the metabolism of adenine and guanine to uric acid. Caffeine (in coffee and tea) is 1,3,7‐trimethylxanthine; theophylline (in tea) is 1,3‐dimethylxanthine; theobromine (in cocoa) is 3,7‐dimethylxanthine.

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DAVID A. BENDER. "xanthine." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>.

DAVID A. BENDER. "xanthine." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O39-xanthine.html

DAVID A. BENDER. "xanthine." A Dictionary of Food and Nutrition. 2005. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-xanthine.html

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xanthine

A Dictionary of Nursing | 2008 | Copyright

xanthine (zanth-een) n. a nitrogenous breakdown product of the purines adenosine and guanine. Xanthine is an intermediate product of the breakdown of nucleic acids to uric acid.

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"xanthine." A Dictionary of Nursing. 2008. Encyclopedia.com. 29 May. 2012 <http://www.encyclopedia.com>.

"xanthine." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 29, 2012). http://www.encyclopedia.com/doc/1O62-xanthine.html

"xanthine." A Dictionary of Nursing. 2008. Retrieved May 29, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-xanthine.html

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