International Science Community Association Research Journal of Recent Sciences 2277 - 2502 1 4 2012 April 2 Optimization of the Extraction of Sorghum's Polyphenols for Industrial Production by Membrane Processes 1 8 EN Pascal C. 1 Laboratoire d’Etude et de Recherche en Chimie Appiquée (LERCA), Ecoe Poytechnique d'Abomey-Calavi (EPAC), Universit� d'Abomey-Calavi (UAC), 01 BP 2009 Cotonou, REPUBLIC OF BENIN Agbangnan D. 2 Institut Pluridisciplinaire de Recherche sur l�Environnement et les Mat�riaux (IPREM), Universit� de Pau et des Pays de l�Adour (UPPA), UMR 5254 Technopole H�lioparc, 2 avenue du pr�sident d�Angot 64053 PAU Cedex, FRANCE Christine Tachon 3 Institut des Sciences Mol�culaires (ISM), Universit� de Bordeaux 1, CNRS UMR 5255 Batiment A12, 351 cours de la lib�ration, 33405TALENCE cedex, FRANCE Justine Dangou 4 Anna Chrostowska 5 Fouquet Eric 6 DominiqueC.K. Sohounhloue 7 > Research Paper 2012 1 17 2012 April 2 For a large-scae production of sorghum’s poyphenos for food and medicine by membrane processes, different extraction parameters (temperature, duration and nature of solvent) were optimized. For a production in respect of environmental standards to an extrapolation of technology to the semi-industrial scale in the developing countries, 14 hours of extraction with magnetic or mechanical stirring at room temperature with a ratio of 1g of solids per 150 ml of water and a neutral pH were selected as optimum extraction conditions Copyright@ International Science Community Association