Articles by Brian Tanzer
A Comparative Look at Resveratrol and Pterostilbene
Resveratrol (3,5, 4’-trihydroxystilbene) and pterostilbene (3,5-dimethoxy-4’-hydroxystilbene) are both chemically classified as stilbene compounds. Biologically, they are both phytoalexins.The phytoalexins are generally lipophilic substances that are products of a plant’s secondary metabolism, and they often accumulate at infection sites to concentrations, which are inhibitory to the development of fungi, bacteria and other pathogens.1 Pterostilbene is closely ...
Benefits Off the Vine
The nutritional and medicinal value of grapes has been touted for hundreds of years. While the general composition of the grape consists of two-six percent stem, five-12 percent skin, 80-90 percent juice and zerofive percent seeds, the grape’s major component is a class of compounds known as polyphenols—the most important phytochemicals found in the fruit. ...
Examining Vitamin K
The 1943 Nobel Prize in Physiology or Medicine was awarded to Danish biochemist Henrich Dam and Edward Doisy of St. Louis University for their characterization of vitamin K, so named because a lack of this vitamin causes a defect in blood koagulation. The letter K used to designate the vitamin is derived from the German ...
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