Visit us for a Mississippi River tour or cruise. We are based out of Harpers Ferry, Iowa but also port out of Lansing, Iowa, Prairie du Chien, Wisconsin and McGregor, Iowa. McGregor Iowa boat tours, Mississippi River boat tours cruises rentals. Maiden Voyage Tours Website.
Xanthine: A substance found in caffeine, theobromine, and theophylline and encountered in tea, coffee, and the colas. Chemically, xanthine is a purine.There is a genetic disease of xanthine metabolism, xanthinuria, due to deficiency of an enzyme, xanthine dehydrogenase, needed to process xanthine in the body.reatment is by avoiding foods and drinks containing xanthine derivatives, such as coffee, tea, and colas. The name xanthine was taken from the Greek xanqos meaning yellow + quinine since it forms yellow salts and its solution forms a blue fluorescence as does quinine.
Astaxanthin is a reddish pigment that belongs to a group of chemicals called carotenoids. It occurs naturally in certain algae and causes the pink or red color in salmon, trout, lobster, shrimp, and other seafood.staxanthin is POSSIBLY SAFE when taken by mouth as a supplement. Astaxanthin has been used safely by itself in doses of 4 to 40 mg daily for up to 12 weeks. It has been used safely in combination with other carotenoids, vitamins and minerals at 4 mg daily for up to 12 months.