Testing Method for Xanthones Established

OGDEN, UtahResearchers established a credible scientific method for testing and measuring xanthones. The study was published in the June 2007 issue of the Journal of Separation Science (30(9): 1229-1234; DOI:10.1002/jssc.200700024). In additional news, preliminary results from a separate study conducted on mangosteen juice (as XanGo® Juice, from XanGo LLC) indicate usage of the whole mangosteen fruit as a delivery vehicle leads to high xanthone absorption. The study showed in approximately 3.5 hours, the xanthone was absorbed during digestion; females have a more efficient absorption rate than males; long-term consumption of XanGo Juice caused a blood loading effect; alpha-mangostin was absorbed at very low doses of consumption; and that at very high levels, the absorption efficiency of the xanthone decreases. Furthermore, these preliminary findings show artificially inflating a product with xanthone extracts does not add any value. These two studies put into context how to measure xanthones and how to effectively absorb these phytonutrients, said Edward Walker, Ph.D., of Weber State University, lead researcher on the study. A xanthone measurement standard is in place. Now claims concerning xanthone quantity and efficacy can be evaluated through credible research.