Article Number: PRJA03923632

Vol. 1 Issue 2, pp: (17-24), July 2016.
Article Number: PRJA03923632
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Full Length Research Paper

Comparative Evaluation of the Physico-chemical Properties of Chemically and Enzymatically Epoxidised Soybean Oil

Surashree Sen Gupta*, Ananya Guchhait, Swarup Sarkar and Mahua Ghosh

Department of Chemical Technology, University of Calcutta, Kolkata, West Bengal 700 009, India.

*Corresponding Author.

 Received: January 27, 2016  Accepted: June 25, 2016  Published: July 7, 2016


In the present work chemically and enzymatically epoxidized products of soybean oil were synthesized and their properties were compared. Hydrogen peroxide was used as the epoxidizing agent in both types of epoxidation reactions. However, the proportions of H2O2 used were varied in both the cases, the proportions being 1:1 and 1:2 ratios. It was observed that the epoxidation process was strongly influenced by the proportion of hydrogen peroxide. In both the cases higher yield of plasticizer was obtained with higher amount of H2O2. The synthesized products were characterised in terms of FTIR analysis, acid value, iodine value, oxirane content and viscosity. From the results, the 1:2 enzymatic reactions could be claimed as the process giving better product due to its high yield, comparatively low acid value and lower epoxy ring opening reactions.

Key words: Soybean oil; Enzymatic epoxidation; Chemical epoxidation; Plasticizer; Hydrogen peroxide.