Structural characterization by Nuclear Magnetic Resonance of ozonized triolein


  • Maritza F. Díaz Department of Ozonized Substances, Ozone Research Center, National Center for Scientific Research
  • José A. Gavín University of the Laguna
  • Jailson B. de Andrade Federal University of Bahia



Aldehydes, NMR, Ozonation, Ozone, Ozonides, Triolein


In the present study ozonized triolein with 739 mmolequiv/ kg peroxide index is characterized by NMR.The triolein and ozonized triolein show very similar 1H NMR spectra except for the resonances at δ 9.74 ppm, which correspond to aldehydic protons and δ 5.14 ppm (ozonides methylic protons). Other new signal assignments are based on the connectivities provided by the proton scalar coupling constants δ 2.41 ppm (methylenic group allylic to aldehydic protons and ozonides methynic protons) and δ 1.67 ppm (methylenic protons in position with respect to ozonides methylic protons). From the 13C and 1H-13C spectrum of the ozonized triolein, the presence of ozonides was confirmed by the signals δ 104.2 and 104.3 ppm, respectively. Other new signals in δ 43.9 ppm confirm the presence of methylenic carbon ozonides. From the structural elucidation of ozonated triglycerides, relevant chemical information about ozonated vegetable oil can be found .


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How to Cite

F. Díaz M, Gavín JA, B. de Andrade J. Structural characterization by Nuclear Magnetic Resonance of ozonized triolein. grasasaceites [Internet]. 2008Sep.30 [cited 2023Feb.7];59(3):274-81. Available from: