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Application of dense membrane theory for differential permeation of vegetable oil constituents.

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Relation http://ir.cftri.com/3065/
JFE-34-03
 
Title Application of dense membrane theory for differential permeation of vegetable oil constituents.
 
Creator Subramanian, R.
Raghavarao, K. S. M. S.
Nakajima, M.
Nabetani, H.
Yamaguchi, T.
Kimura, T.
 
Subject 03 Essential oils
05 Processing and Engineering
 
Description Our earlier study on nonaqueous liquid mixture system (triglycerides and oleic acid) showed that the contribution of solutiondi
ffusion to transport in nonporous (dense) membranes is more than usually observed in reverse osmosis membranes. Triglycerides
and oleic acid were independently studied in the present study. The results showed that pressure had significant effect on the
permeation rates. The behaviour of pure systems was similar to triglycerides–oleic acid mixture. In the present study on triglycerides
–tocopherols model system, tocopherols preferentially permeated through nonporous membranes. Increased concentration of
tocopherols increased the feed viscosity, however, the total permeate flux remained practically constant. Whereas in triglycerides–
oleic acid mixture system, increased concentration of oleic acid reduced the feed viscosity and increased the total flux. The comparative
performance of these two different systems revealed that viscosity does not play significant role in the permeation. Further,
the analysis establishes that dense membrane theory could qualitatively explain the differential permeability of oil constituents.
 
Date 2003
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://ir.cftri.com/3065/1/Journal_of_Food_Engineering_60_%282003%29_249-256.pdf
Subramanian, R. and Raghavarao, K. S. M. S. and Nakajima, M. and Nabetani, H. and Yamaguchi, T. and Kimura, T. (2003) Application of dense membrane theory for differential permeation of vegetable oil constituents. Journal of Food Engineering, 60 (3). pp. 249-256.