Kheirati Rounizi Somayeh, Akrami Mohajeri Fateme, Moshtaghi Broujeni Hamdollah, Pourramezani Fatemeh, Jambarsang Sara, Kiani Hossein, Khalili Sadrabad Elham
Zoonotic Diseases Research Center Department of Food Hygiene and Safety School of Public Health Shahid Sadoughi University of Medical Sciences Yazd Iran.
Food Hygiene and Quality Control School of Veterinary Medicine Shahrekord University Shahrekord Iran.
Food Sci Nutr. 2021 Mar 17;9(6):2886-2893. doi: 10.1002/fsn3.2245. eCollection 2021 Jun.
The oil was extracted from sesame seed with two extraction methods. Traditional (Ardeh oil) and industrial method (cold pressing method: virgin and refined sesame oil) oil extraction was studied to compare the quality and heavy metal content of extracted oils. The chemical properties (fatty acid composition, peroxide, anisidine, acid values, and TOTOX) and heavy metal contents were investigated. The Hazard Quotient (HQ) and Hazard Index (HI) of heavy metal intakes were calculated. The results demonstrated that the predominant fatty acid in oil samples was oleic, linoleic, palmitic, and stearic acids. It was indicated the peroxide, anisidine, acid values, and TOTOX of oil samples were as the order of Ardeh oil > virgin sesame oil > refined sesame oil. The reduction pattern of Pb > Zn >Cu > Cd >As was reported in sesame seed. Although the oil refining had been greatly reduced the Pb of oil sample, but it had yet been much higher than the permissible levels set by Codex Alimentarius. The HQ and HI of all heavy metals were less than one, but they were higher in Ardeh oil compared to others. It is necessary to monitor the presence of heavy metal contaminants and the quality of imported sesame seeds prior to oil preparation.
采用两种提取方法从芝麻中提取油脂。研究了传统方法（阿代赫油）和工业方法（冷榨法：初榨和精炼芝麻油）的油脂提取情况，以比较提取油脂的质量和重金属含量。对化学性质（脂肪酸组成、过氧化物、茴香胺、酸值和TOTOX值）和重金属含量进行了研究。计算了重金属摄入量的危害商数（HQ）和危害指数（HI）。结果表明，油样中的主要脂肪酸为油酸、亚油酸、棕榈酸和硬脂酸。结果表明，油样的过氧化物、茴香胺、酸值和TOTOX值顺序为阿代赫油＞初榨芝麻油＞精炼芝麻油。芝麻中铅、锌、铜、镉、砷的含量呈下降趋势。虽然油脂精炼大大降低了油样中的铅含量，但仍远高于食品法典委员会规定的允许水平。所有重金属的HQ和HI均小于1，但阿代赫油中的HQ和HI高于其他油样。在制备油脂之前，有必要监测进口芝麻中重金属污染物的存在情况和质量。
