Publication detail

Investigation of thermal degradation of vegetable oils by spectroscopic methods and its mathematical analysis

TOBOLOVÁ, M. KŘESÁLEK, V. VAŠKOVÁ, H. BUČKOVÁ, M.

Original Title

Investigation of thermal degradation of vegetable oils by spectroscopic methods and its mathematical analysis

Type

journal article - other

Language

English

Original Abstract

In this paper, relatively new spectroscopic methods were used for investigation of edible oils and their thermal degradation. There were included the samples of refined rapeseed and sunflower oil and the same oils heated for specified time interval at the temperature 200 deg. Celsius. The optical characteristics of oils have been investigated with Terahertz Time Domain Spectroscopy (THz-TDS). The refractive indices were calculated in the specified terahertz frequency range, processed and statistically evaluated. The Wilcoxon matched pairs test was carried out for comparison of unheated and heated oil samples. The results measured by THz-TDS were supplemented by Raman spectra analysis. Both methods seem to be capable analyzing tool for oil investigation.

Keywords

heating the oils; Raman spectroscopy; thermal degradation; THz time domain spectroscopy, vegetable oil

Authors

TOBOLOVÁ, M.; KŘESÁLEK, V.; VAŠKOVÁ, H.; BUČKOVÁ, M.

RIV year

2014

Released

9. 12. 2014

ISBN

1998-0159

Periodical

International Journal of Mathematics and Computers in Simulation

Year of study

8

Number

1

State

United States of America

Pages from

213

Pages to

219

Pages count

7

BibTex

@article{BUT113122,
  author="Marie {Nedvědová} and Vojtěch {Křesálek} and Hana {Vašková} and Martina {Bučková}",
  title="Investigation of thermal degradation of vegetable oils by spectroscopic methods and its mathematical analysis",
  journal="International Journal of Mathematics and Computers in Simulation",
  year="2014",
  volume="8",
  number="1",
  pages="213--219",
  issn="1998-0159"
}