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  4. Application of short path distillation for recovery of polyphenols from deodorizer distillate
 
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Application of short path distillation for recovery of polyphenols from deodorizer distillate

Publikationstyp
Journal Article
Date Issued
2011-07
Sprache
English
Author(s)
Meyer, Florian  
Eggers, Rudolf  
Oehlke, Kathleen  
Harbaum-Piayda, Britta  
Schwarz, Karin  
Siddiqi, Mohammad Aslam  
Institut
Thermische Verfahrenstechnik V-8  
TORE-URI
http://hdl.handle.net/11420/13157
Journal
European journal of lipid science and technology  
Volume
113
Issue
11
Start Page
1363
End Page
1374
Citation
European Journal of Lipid Science and Technology 113 (11): 1363-1374 (2011)
Publisher DOI
10.1002/ejlt.201000523
Scopus ID
2-s2.0-81155144549
Publisher
Wiley-VCH
During 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.
Subjects
Deodorizer distillate
Polyphenols
Rapeseed, recovery
Short path distillation
DDC Class
530: Physik
540: Chemie
600: Technik
620: Ingenieurwissenschaften
660: Technische Chemie
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