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Titre du document / Document title

Study of ozonated sunflower oil using 1H NMR and microbiological analysis

Auteur(s) / Author(s)

DIAZ Maritza F. (1) ; GAVIN José A. (2) ; GOMEZ Magali (1) ; CURTIELLES Vicente (1) ; HERNANDEZ Frank (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Ozonized Substances, Ozone Research Center, National Center for Scientific Research, Havana, CUBA
(2) University of the Laguna, Tenerife, ESPAGNE

Résumé / Abstract

Prior studies have proven that ozonated vegetable oils present a high germicidal power. Ozonation of sunflower oil at different applied ozone dosage was carried out and peroxide and aldehydes indices along with antimicrobial activity were determined. The reaction products were identified using Proton Nuclear Magnetic Resonance Spectroscopy ('H NMR). The principal signals intensity values were used for following the reaction course between ozone and sunflower oil. The reaction was following up to peroxide index values of 1202 mmol-equi/kg. The intensities of olefinic proton signals decreased with the gradual increase in ozone concentration but without disappearing completely. The Criegee ozonides obtained at 107.1 mg/g of ozone doses were approximately 3.9-fold higher than that at beginning of the reaction. The aldehyde protons were observed as a weak intensity signal in all the spectra. The signals belonging to olefinic protons from hydroperoxides appeared weak and increased with the increase in ozone doses. Signals from other oxygenated groups were assigned. The highest action spectrum of antimicrobial activity was obtained with the higher peroxide index. It was concluded that at higher applied ozone doses, the higher the antimicrobial activity potential of ozonized sunflower oil.

Revue / Journal Title

Ozone : science & engineering    ISSN  0191-9512   CODEN OZSEDS 

Source / Source

2006, vol. 28, no1, pp. 59-63 [5 page(s) (article)] (26 ref.)

Langue / Language

Anglais

Editeur / Publisher

Taylor & Francis, Philadelphia, PA, ETATS-UNIS  (1979) (Revue)

Mots-clés anglais / English Keywords

Hydrogen 1

;

NMR spectrometry

;

Antimicrobial agent

;

Ozonization

;

Chemical treatment

;

Sunflower oil

;

Vegetable oil

;

Mots-clés français / French Keywords

Hydrogène 1

;

Spectrométrie RMN

;

Antimicrobien

;

Ozonation

;

Traitement chimique

;

Huile tournesol

;

Huile végétale

;

Mots-clés espagnols / Spanish Keywords

Espectrometría RMN

;

Antimicrobiano

;

Ozonización

;

Tratamiento químico

;

Aceite girasol

;

Aceite vegetal

;

Mots-clés d'auteur / Author Keywords

Ozone

;

Ozonides

;

1H NMR

;

Sunflower Oil

;

Antimicrobial Activity

;

Localisation / Location

INIST-CNRS, Cote INIST : 18256, 35400015337836.0080

Nº notice refdoc (ud4) : 17583318



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