title: Flash Extraction and Physicochemical Characterization of Oil from Elaeagnus mollis Diels Seeds.
abstract: A flash extraction method was used to isolate Elaeagnus mollis oil (EMO). The optimal extraction parameters, sample/solvent ratio and extraction temperature, were determined to be 1:10 (g/mL) and 40°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.
authors.affiliation: Department of Food Science and Engineering, College of Biological Sciences and Technology, Beijing Key Laboratory of Forest Food Process and Safety, Beijing Forestry University.
authors.forename: Lina
authors.initials: L
authors.lastname: Kan
authors.forename: Lin
authors.initials: L
authors.lastname: Wang
authors.forename: Qingzhen
authors.initials: Q
authors.lastname: Ding
authors.forename: Yanwen
authors.initials: Y
authors.lastname: Wu
authors.forename: Jie
authors.initials: J
authors.lastname: Ouyang
mesh_terms: D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification; D001713:Biphenyl Compounds / Q000737:chemistry; D031263:Elaeagnaceae / Q000737:chemistry*; D005227:Fatty Acids / Q000032:analysis; D017665:Hydroxyl Radical / Q000737:chemistry; D059625:Liquid-Liquid Extraction; D010084:Oxidation-Reduction; D010851:Picrates / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry*; D024505:Tocopherols / Q000032:analysis
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D005227:Fatty Acids; D010851:Picrates; D010938:Plant Oils; D017665:Hydroxyl Radical; C004931:1,1-diphenyl-2-picrylhydrazyl; D024505:Tocopherols