In this research, extraction and antioxidant activities of the oils from 15 varieties of Iranian date seeds were investigated. Khazravi variety (13.2%) and Kaliteh variety (6.2%) had highest and lowest yields of seeds with the average of 9.5% respectively. The highest and the lowest yields of oils were related to the Shavi-shirin variety (13.2%) and Piarom variety (6.4%) with the average of 9.5% respectively. Antioxidant activities of the oils were determined with DPPH radical scavenging assays. Results showed that Shavi-talkh and Estamaran varieties had highest and lowest activities with amount of 55.5% and 5.1% respectively (with average 30.1%). It was found that the some oils significantly reduced the concentration of DPPH free radical, with an efficacy higher than that of trolox (34.0%). These results may be encouraged interest in date seed oils for use in cosmetics, pharmaceuticals and food industries.
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