Natural Products in Food, Spices, and Beverages - Natural Products Chemistry: Sources, Separations, and Structures - page 153

QUESTIONS
1. Provide the isolation steps to isolate the representative sweetener compound
from stevia, licorice, and agave.
2. What methods are used to isolate the catechins from tea?
3. How might you choose to separate the individual components?
4. What is keto-enol tautomerism?
5. How might you detect the equilibrium of these two forms?
FURTHER READING
S weetenerS
L. O'Brien-Nabors. 2011. Alternative Sweeteners . 4th ed. Taylor & Francis.
C ateChinS and G reen t ea
R. Cooper, D. J. Morre, and D. M. Morre. 2005. Medicinal benefits of green tea. Part I. Review
of non-cancer health benefits. J Alternative and Complementary Medicine 11:521-528.
R. Cooper, D. J. Morre, and D. M. Morre. 2005. Medicinal benefits of green tea. Part II. Review
of anti-cancer properties. J Alternative and Complementary Medicine 11:639-652.
I. MacFarlane and A. MacFarlane. 2009. The Empire of Tea: The Remarkable History of the
Plant That Took over the World . Overlook Press.
L. C. Martin. 2007. Tea: The Drink That Changed the World . Tuttle Publishing.