Functional foods Attitudes 2 Consumers 2 Azo dyes 1 Bioremediation 1 Composite materials 1 Consumers' preferences 1 Enzyme inhibitors 1 Food industry and trade 1 Food law and legislation 1 Health aspects 1 Marketing 1 Public opinion 1 Sweet potato products 1 Therapautic use 1 Therapeutic use 1 Yogurt 1