Measurement of the total hydroperoxides in ozonated sunflower oil using the ferrous oxidation in xylenol orange assay

Goitybell Martínez Téllez; Rebeca Hernández Tápanez; Maritza Díaz Gómez

doi:10.3989/gya.2005.v56.i2.123

Measurement of the total hydroperoxides in ozonated sunflower oil using the ferrous oxidation in xylenol orange assay

Authors

Goitybell Martínez Téllez Centro de Investigaciones del Ozono
Rebeca Hernández Tápanez Centro de Investigaciones del Ozono
Maritza Díaz Gómez Centro de Investigaciones del Ozono

DOI:

https://doi.org/10.3989/gya.2005.v56.i2.123

Keywords:

HPT, OFX, Ozonazed sunflower oil, Xylenol orange

Abstract

Total hydroperoxides (HPT) concentration using the ferrous oxidation in xylenol orange (OFX) assay and peroxide value (IP) using iodometric assay, were determined in sunflower oil samples ozonated at different ozone dosages. The effect of an increasing amount of ozonazed sunflower oil was evaluated by assembly assay, where a lineal relationship was obtained between oil amounts from 2 to 17 µg in the assay and absorbance units measured at 560 nm. The OFX reagent calibration and the extinction coefficient calculation were carried out for HPT measurement in ozonazed samples. The correlation established between IP and the concentration obtained by OFX assay showed a lineal relationship (r = 99.29; r² = 98.59 %). These results confirm that this assay is appropriate for HPT measurement in ozonazed sunflower oil.

Downloads

Download data is not yet available.

Downloads

Published

2005-06-30

How to Cite

Martínez Téllez G, Hernández Tápanez R, Díaz Gómez M. Measurement of the total hydroperoxides in ozonated sunflower oil using the ferrous oxidation in xylenol orange assay. grasasaceites [Internet]. 2005Jun.30 [cited 2023Sep.25];56(2):147-52. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/123

Download Citation

Issue

Vol. 56 No. 2 (2005)

Section

Research

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

© CSIC. Manuscripts published in both the printed and online versions of this Journal are the property of Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.

All contents of this electronic edition, except where otherwise noted, are distributed under a “Creative Commons Attribution 4.0 International” (CC BY 4.0) License. You may read here the basic information and the legal text of the license. The indication of the CC BY 4.0 License must be expressly stated in this way when necessary.

Self-archiving in repositories, personal webpages or similar, of any version other than the published by the Editor, is not allowed.