Determination Of Some Quality Indicators Of Olive Oil Samples Withdrawn From The Syrian Markets And Their Conformity with The Syrian Standard Specifications

Abstract

This study was conducted to assess the quality of samples of olive oil sold in the

Syrian market from different brands and declared as " virgin olive oil", by assigning a set of basic quality indicators, which are peroxide value, free acidity, iodine value, and absorbance of UV values (K232, K270, ∆ K and R (K232/K270)), and study their conformity with the Syrian standard (182:2016) and International Olive Council standards (IOC, 2022). The results showed that all the studied samples were identical in terms of free acidity, iodine value, and as for the peroxide value, the OLI8 sample was in violation and recorded a value of 21.5 (meq O2/kg oil). 

The results of absorbance of UV showed that most of the studied samples did not comply with the required local and international standards, so they were all in violation in terms of the value of K270 (0.25 ≤), and the value of K232 (2.6 ≤) except OLI1, OLI 7, which were respectively 2.427 and 2.433. , and ∆K values (0.01≤) except OLI1, OLI 2, OLI3, and OLI 6, while the R-values are all greater than 6 except OLI8, which was 5.84.