books.google.com - For centuries, people around the world have used fermentation to preserve and enhance the flavor of a wide variety of foods. Today, complex interactions of microbiota in the digestive tract are found to influence proper digestion, metabolism, and disease resistance. With greater emphasis on natural products...http://books.google.com/books/about/Handbook_of_fermented_functional_foods.html?id=gpcXqE-j6gEC&utm_source=gb-gplus-shareHandbook of fermented functional foods