Chromatographic evaluation of tocols and sterols of processed canola oil and deodorizerdistillate

Authors

HADIA SHOAIB
S. TUFAIL SHERAZI
Saba NAZ
DR SARFARAZ AHMED MAHESAR
ABDUL RAUF KHASKHELI
SIRAJ UDDIN
AHMED RAZA SIDHU
HAMİDE FİLİZ AYYILDIZ
HÜSEYİN KARA
MUSTAFA TOPKAFA

DOI

10.55730/1300-0527.3307

Abstract

Tocopherols and tocotrienols in the combined form are known as tocols. Changes of total and individual tocols and sterols concentration of canola oil and deodorizer distillate (DD) during different processing stages were evaluated with the application of gas chromatography (GC) and high-performance liquid chromatography (HPLC). For sterols analysis, GC coupled with flame ionization detector (FID) was used while tocols in canola oil samples and DD, normal phase (NP) HPLC was applied. The results of the present study indicated that levels of total and individual tocols and sterols content were decreased during processing (neutralization to deodorization). Deodorization was found to be the most effective process for the reduction of total sterols and tocols as 55.9% and 34.2%, respectively. A high amount of tocols and sterols was observed in DD. Among tocols and sterols; beta tocopherol (β-T) and β-sitosterol were found to be in greater concentration 53.97% and 31.82%, respectively. Therefore, DD could be used as a valuable byproduct in the cosmetics and food industries.

Keywords

Canola oil, deodorizer distillate, processing, tocols, sterols

First Page

302

Last Page

310

Recommended Citation

SHOAIB, HADIA; SHERAZI, S. TUFAIL; NAZ, Saba; MAHESAR, DR SARFARAZ AHMED; KHASKHELI, ABDUL RAUF; UDDIN, SIRAJ; SIDHU, AHMED RAZA; AYYILDIZ, HAMİDE FİLİZ; KARA, HÜSEYİN; and TOPKAFA, MUSTAFA (2022) "Chromatographic evaluation of tocols and sterols of processed canola oil and deodorizerdistillate," Turkish Journal of Chemistry: Vol. 46: No. 2, Article 2. https://doi.org/10.55730/1300-0527.3307
Available at: https://journals.tubitak.gov.tr/chem/vol46/iss2/2