Leffingwell and Associates - Information on flavor and fragrance materials, industry news, shareware for food additives, and links to papers on olfaction, food science, carotenoids, and odor thresholds. Food Ingredients First - Industry news and links, supplier directory, product applications and research database. Natural Food Colours Association - NATCOL is the international body that acts on behalf of food industry to promote common interests and protect its members. Resources and contacts. Food Additives - An encyclopedia article on food additives, including definitions of the different types. GrokFood - Comprehensive database of food additives. Includes full text of federal regulations governing the use of substances added to the food supply in the United States. Sweetener Glossary - Provides a general guide to the properties and applications of sugar and sweeteners. IngredientsWizard.com - Provides news for the food production industry, information on ingredients, a suppliers guide and a forum. FDA: Color Additives - Provides information on FDA approved products used in food, drugs, cosmetics or in medical devices.