Feasibility of recycling used frying oil using membrane process

Atsushi, Miyagi and Mitsutoshi, Nakajima and Hiroshi, Nabetani and Subramanian, R. (2001) Feasibility of recycling used frying oil using membrane process. European Journal of Lipid Science Technology, 103. pp. 208-215.

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Abstract

<p align="justify">A study was carried out to improve the quality of used frying oils and to assess the feasibility of recycling using a membrane process. Experiments were conducted with used frying oils in a flat membrane batch cell using polymeric membranes. The total polar materials and oxidation products, which normally lead to the deterioration of frying oils,were reduced by 32 to 42% and 14 to 48% during NTGS-2200 membrane processing. Color and viscosity of the used frying oil, which are the main criteria for discontinuing use in many restaurants and homes, were improved to the extent of fresh oil. The membrane processing was effective for improving the overall quality. However, reductions of phosphatides and color compounds, presumably melanoidines, may be responsible for a deterioration of oil stability. The permeate flux values were in the range of 63 to 121 g/(m2 h). The permeate flux was found to be inversely proportional to the viscosity of the oil. The stability of the processed oil as well as the permeate flux must be improved for commercial application.</p>

Item Type:	Article
Uncontrolled Keywords:	Used frying oil, membrane processing, nonporous hydrophobic composite membrane, recycling, oil stability
Subjects:	600 Technology > 08 Food technology > 07 Food Engineering 600 Technology > 09 Industrial oils, fats, waxes, gases > 03 Essential oils 600 Technology > 08 Food technology > 05 Processing and Engineering
Divisions:	Food Engineering
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	14 Sep 2005
Last Modified:	09 May 2012 07:09
URI:	http://ir.cftri.res.in/id/eprint/178

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