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Complementary and Alternative Medicine
Food and drink products containing kava analyzed
February 20th, 2005
Scientists have analyzed food and drink products containing kava. "A method for the determination of six kava lactones, methysticin, dihydromethysticin, kawain, dihydrokawain, yangonin, and desmethoxyyangonin, in solid foods and beverages has been developed. Solid samples were prepared using methanol extraction, while beverages were extracted using a separate solid phase extraction (SPE) method. After sample preparation, the extracts were analyzed using LC-UV or atmospheric pressure photoionization (APPI) LC-MS in the positive mode. Using the method, 10 beverage products, two chocolate products, three unbrewed tea products, three dietary supplements, and a drink mix...
Source: Medical Letter on the CDC & FDA (2005-02-20)
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