Meyer, FlorianFlorianMeyerEggers, RudolfRudolfEggersOehlke, KathleenKathleenOehlkeHarbaum-Piayda, BrittaBrittaHarbaum-PiaydaSchwarz, KarinKarinSchwarzSiddiqi, Mohammad AslamMohammad AslamSiddiqi2022-07-152022-07-152011-07European Journal of Lipid Science and Technology 113 (11): 1363-1374 (2011)http://hdl.handle.net/11420/13157During physical refining of oil derived from 'high temperature short time' (HTST) pretreated rapeseeds, polyphenols are separated from the oil during deodorization and accumulate together with other high-value minor compounds in the so-called deodorizer distillate. For recovery of these compounds single-stage and multistage short path distillations were carried out in a laboratory scale apparatus at evaporation temperatures between 110 and 170°C and pressures between 0.006 and 0.01mbar. In addition, the removal of traces of pesticides from rapeseed deodorizer distillate was investigated. It was observed that these compounds can be separated from deodorizer distillate by means of short path distillation very effectively. On the basis of these experiments, a recovery process for polyphenols was proposed involving short path distillation, acid catalyzed esterification with methanol, solvent crystallization and solvent extraction processes. The final product was a polyphenol enriched extract containing about 14% of polyphenols. A polyphenol recovery of 50% is considered to be reachable and fractions rich in tocopherols and sterols may be obtained as by-products. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en1438-931220111113631374Wiley-VCHDeodorizer distillatePolyphenolsRapeseed, recoveryShort path distillationPhysikChemieTechnikIngenieurwissenschaftenTechnische ChemieJournal Article10.1002/ejlt.201000523Other