Chemical-physical aspects of sunflower oil ozonated

Authors

  • Rebeca Hernández Tápanes Centro de Investigaciones del Ozono
  • Goitybell Martínez Téllez Centro de Investigaciones del Ozono
  • Maritza F. Díaz Gómez Centro de Investigaciones del Ozono

Abstract

The knowledge of the physical chemical properties of ozonized
vegetable oils has a great importance for its characterization and
identification. In this study a correlation of the relative density and viscosity
with the peroxides index of the ozonized sunflower oil was carried out.
Furthermore, main formed oxygenated products was identified after the
ozonization by means of Proton Nuclear Magnetic Resonance (1H-NMR)
signals. The peroxide index and the relative density showed a linear
relationship with a correlation coefficient of 0.999 1 and a determination
coefficient of 99.82 %, while the peroxide index and the viscosity showed
an exponential relationship with a determination coefficient of 98.52 %. For
samples between 230 and 759 mmol-equiv./kg of peroxides index we
obtained values in a range of 0.935 to 0.973 for the relative density, and
values from 0.037 to 0.190 Pa · s for the viscosity. An increase in peroxides
index, in viscosity and in relative density were observed during the
course of ozonization reaction. 1H-NMR technique was used for
identification of oxigenated compounds such as ozonides, hydroperoxides
and aldehydes. These results suggest that physical chemical
properties can provide valuable information about the ozonization degree
of sunflower oil. This study could be the basis of future chemical
researches of ozonized vegetable oils.

Published

2022-05-20

How to Cite

Hernández Tápanes, R. ., Martínez Téllez, G. ., & Díaz Gómez, M. F. . (2022). Chemical-physical aspects of sunflower oil ozonated. NATIONAL CENTER FOR SCIENTIFIC RESEARCH (CENIC) CHEMICAL SCIENCES JOURNAL, 35(3), 159-162. Retrieved from https://revista.cnic.cu/index.php/RevQuim/article/view/1513

Issue

Section

Research articles