The first designer foods to hit the market will probably be bananas with delayed ripening qualities, tomatoes with a higher antioxidant content, higher-protein rice ( using genes transferred from pea plants ), and strawberries with increased levels of ellagic acid, a natural cancer-fighting agent.
42.
The raspberry ellagitannin ( M . W . ~ 2450 ), on the other hand, with its 14 gallic acid moieties ( most in ellagic acid-type components ), and more than 40 phenolic hydroxyl groups, meets the criteria of both definitions of a polyphenol.
43.
Valoneic acid dilactone, flavogallonic acid dilactone, gallagyldilactone, ellagic acid and gallic acid are hydrolysable tannins that can be isolated from the heartwood of " S . laeviforia " as well as two stilbenoids, laevifonol ( an ?-viniferin-ascorbic acid hybrid compound ) and laevifoside ( an O-glucoside of ampelopsin A ).
44.
The gallic and ellagic acid hydrolyzable tannins react with proteins to produce typical tanning effects; medicinally, this is important to topically treat inflamed or ulcerated tissues . They also contribute to most of the astringent property of " manjakani " and in small insignificant doses, are great for skin whitening and killing microorganisms.
