3RD INTERNATIONAL CONGRESS ON TECHNOLOGY - ENGINEERING & SCIENCE - Kuala Lumpur - Malaysia (2017-02-09)

Lead And Cadmium Contamination In Flavored Olive Oil

Introduction: Human vast activities in all fields has been caused a extensive dispersion of heavy metals in the environments and as a result contamination of human food. Nowadays there is study of metal contents in food is considerable attention to this category of contaminations because some of these metals not only influence on the environment but are also toxic to humans. According to high global demand of healthy vegetable oils in recent years , olive oil have been one of the most consumed oils in the words. Production rate of olive oil increased from 1 million ton in 1958/1959 to 3.4 million ton in 2011/2012. Today flavored olive oil productions and consumptions has increased. Also, consumption of flavored olive oils have been welcomed by consumers. Although the high consumption of olive oil had belonged to the Europe union, its distributed and consumed widely in all over the word . Regarding to the high consumption of all kind olive oil, the levels of lead and cadmium in flavored olive oil are investigated. Material & Methods : In this study ,some high consumption brands with different batch numbers ,which packed with metal , plastic and glass were selected randomly from Iran and Italy. Heavy metals in the samples were determined by atomic absorption spectrometry. The changes were calculated by one way Anova and for analysis of the role of multiple factors univariate analysis was used by SPSS 20. Probability values of <0.05 were considered significant. Results & Discussion : According to variance analyses of data, heavy metal concentrations in samples were significantly affected by company and storage time. There was a positive correlation between the storage time and heavy metal in samples with metal packing. Amount of lead and cadmium in 7% of Italian samples were more than maximum levels that set by set by Codex Alimentarius Commission (0.1 mg/kg for Lead and 0.05 mg/kg for cadmium) . Amount of lead and cadmium in 10 % of Iranian samples which have glass packaging were more than maximum levels that set by Codex Alimentarius Commission (0.1 mg/kg for Lead and 0.05 mg/kg for cadmium) . Amount of cadmium in 10 % of Iranian samples were more than maximum levels that set by set by set by Codex Alimentarius Commission (0.05 mg/kg for cadmium) . To estimate dietary exposure to a substance migrating from the food packaging material, other information is needed.
Keywords: Food Safety, Olive Oil, Heavy Metals, Atomic Absorption Spectrometry
fatemeh sadat mir mohammad makki, parisa ziarati