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Extraction of α‐tocopherolquinone from vegetable oil deodorizer distillate waste
Author(s) -
Isso Bayala,
Ryan David
Publication year - 2012
Publication title -
european journal of lipid science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.614
H-Index - 94
eISSN - 1438-9312
pISSN - 1438-7697
DOI - 10.1002/ejlt.201100380
Subject(s) - chemistry , distillation , steam distillation , squalene , extraction (chemistry) , saponification , pulp and paper industry , vegetable oil , waste management , waste oil , chromatography , organic chemistry , engineering
In industry, deodorizer distillate waste is one of the last products of refined edible oil after the removal of commercially important value components such as fatty acids, sterols, squalene, and vitamin E. The refinery process itself is the cause of a significant amount of loss in vitamin E due to distillation and thermal oxidation. The distillate waste has a very limited commercial value, therefore requires additional costs for a safe environmental disposal. One of the main vitamin E oxidation products found in large quantities in oil waste is tocopherolquinone (TQ). A literature search has revealed that in the past several techniques including a variety of solvent extractions, saponification, or column extraction have been used for TQ isolation with limited success. The present study is a new cost‐effective liquid–liquid extraction method developed to isolate α‐TQ from vegetable oil steam distillate or distillate waste. High recovery results ranging from 31 to 120% were obtained depending on the ratio between the sample and three different organic extraction solvents (acetonitrile, methanol, and hexane) combined.