Flash Extraction and Physicochemical Characterization of Oil from Elaeagnus mollis Diels Seeds

作者：Kan, Lina; Wang, Lin; Ding, Qingzhen; Wu, Yanwen; Ouyang, Jie^*

来源：Journal of Oleo Science, 2017, 66(4): 345-352.

DOI：10.5650/jos.ess16200

• Elaeagnus mills oil
• flash extraction
• fatty acid composition
• antioxidant activity

A flash extraction method was used to isolate Elaeagnus morns oil (EMO). The optimal extraction parameters, sample/solvent ratio and extraction temperature, were determined to be 1:10 (g/mL) and 40 degrees C, respectively. Especially, the extraction yield reached 49.30% when the extraction time was as short as 2 min. No obvious difference was observed in fatty acid composition, iodine value, saponification number, total phenolic content and tocopherol content between flash-extracted EMO and Soxhlet-extracted EMO, but their physicochemical values were lower than those of cold-pressed EMO. Cold-pressed EMO had higher oxidation stability, DPPH (1-diphenyl-2-picrylhydrazyl) and hydroxyl radical-scavenging activities than flash-extracted EMO and Soxlet extracted EMO. The flash extraction is demonstrated to be an alternative, efficient method for the vegetable oil production.

• 出版日期2017-4
• 单位北京市理化分析测试中心; 北京林业大学