DETERMINATION OF ENCAPSULATED SEA BUCKTHORN OIL OXIDATION USING FTIR-ATR SPECTROSCOPY

  • MONICA TRIF Department of Chemistry and Biochemistry. University of Agricultural Sciences and Veterinary Medicine. Cluj-Napoca. 400372
  • MARION ANSORGE SCHUMACHER Institute of Chemistry. Department of Enzyme Technology. TU Berlin. 10623 Berlin. Germany
  • CARMEN SOCACIU Department of Chemistry and Biochemistry. University of Agricultural Sciences and Veterinary Medicine. Cluj-Napoca. 400372
  • H.A. DIEHL 3Department of Biophysics. Institute of Experimental Physics. University of Bremen. Bremen. Germany
Keywords: Sea buckthorn oil, alginate beads, Fourier Transform Infrared Spectroscopy, oxidative stability, Differential Scanning Calorimetric

Abstract

This work examines the oxidation process of Sea buckthorn oil encapsulated in ionotropically cross-linked alginate beads under oxidative conditions. The oxidation of oil was monitored by Fourier Transform Infrared Spectroscopy equipped with the universal ATR (FTIR-ATR) as an internal accessory. We considered as markers of oxidation processes in sea buckthorn oil. the following ratios between absorbances of some important bands: A2853/A3005-3007. A2853/A1744. A2853/A1159-1160. A1744/A3005-3007. A1377/A3005-3007. A1159-1160/A3005-3007. The values of all ratios indicated a first stage oxidation of encapsulated oil and a second or third stage oxidation of free oil. The encapsulated Sea bucktorn oil showed a good stability under oxidation conditions. Differential scanning calorimetric analysis was used to characterize the thermal behavior of free oil. the oil alginate beads and empty beads.

Author Biographies

MONICA TRIF, Department of Chemistry and Biochemistry. University of Agricultural Sciences and Veterinary Medicine. Cluj-Napoca. 400372
BIOTECHNOLOGIES
MARION ANSORGE SCHUMACHER, Institute of Chemistry. Department of Enzyme Technology. TU Berlin. 10623 Berlin. Germany
BIOTECHNOLOGIES
CARMEN SOCACIU, Department of Chemistry and Biochemistry. University of Agricultural Sciences and Veterinary Medicine. Cluj-Napoca. 400372
BIOTECHNOLOGIES
H.A. DIEHL, 3Department of Biophysics. Institute of Experimental Physics. University of Bremen. Bremen. Germany
BIOTECHNOLOGIES
Published
2009-09-29