The contents and effects of polyphenols in chocolate [Elektronische Ressource] : qualitative and quantitative analyses of polyphenols in chocolate and chocolate raw products as well as evaluation of potential implications of chocolate consumption in human health / submitted by Jan Wollgast

JUSTUS LIEBIG UNIVERSITY GIESSEN Faculty of Agricultural and Nutritional Sciences, Home Economics, and Environmental Management Institute of Nutritional Sciences The contents and effects of polyphenols in chocolate Qualitative and quantitative analyses of polyphenols in chocolate and chocolate raw products as well as evaluation of potential implications of chocolate consumption in human health Dissertation for obtaining the degree of doctor at the faculty of Agricultural and Nutritional Sciences, Home Economics, and Environmental Management at the University of Gießen, Germany submitted by Dipl. oec. troph. Jan Wollgast Gießen, 2004 Dissertation at the Faculty 09 (Agricultural and Nutritional Sciences, Home Economics and Environmental Management) of the Justus-Liebig-University Giessen (Germany). Disputation: 10 June 2005 Examinations committee: Chairperson: Prof. Dr. K. Becker-Brandenburg 1. Evaluator: Prof. Dr. C. Kunz 2. Evaluator: Herr PD Dr. G. Harzer 3. Evaluator and examiner: Prof. Dr. B. Honermeier Examiner: Prof. Dr. I. Bitsch Table of contents Table of contents 0 INTRODUCTION AND OBJECTIVES 1 1 LITERATURE SURVEY 7 1.1 Theobroma cacao and chocolate 7 1.2 Polyphenols – chemistry and biosynthesis 13 1.3 Polyphenols in cocoa 20 1.4 Analytical methodologies for the analysis of polyphenols in chocolate and chocolate raw products 29 1.