title: The effects of different extraction methods on composition and storage stability of sturgeon oil.
abstract: The objective of this study was to assess the effect of different extraction methods on oil yield, colour attributes, oxidative stability, fatty acids composition and production of volatile compounds in sturgeon oil during storage. The supercritical fluid extraction (SFE) method with carbon dioxide resulted in higher oil yields, better colour attributes, and higher oxidative stability compared to other traditional extraction methods such as enzymatic extraction, amino, and wet reduction. After storage at 4 °C for 33 days, the aldehyde content in oil extracted by the enzymatic extraction and wet reduction methods was twice as high as that obtained by the other methods. There was a significant reduction in the content of total acids in oils extracted by the enzymatic extraction and wet reduction methods (p<0.05), whereas amine compounds were mainly detected in oil extracted by the amino method. The oil extracted by SFE exhibited higher UFA and lower SFA. Significant diffidence among PUFA with C above 20 was observed in oil extracted with SFE.
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Shuxian
authors.initials: S
authors.lastname: Hao
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Ya
authors.initials: Y
authors.lastname: Wei
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China. Electronic address: laihaoli@163.com.
authors.forename: Laihao
authors.initials: L
authors.lastname: Li
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Xianqing
authors.initials: X
authors.lastname: Yang
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Jianwei
authors.initials: J
authors.lastname: Cen
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Hui
authors.initials: H
authors.lastname: Huang
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Wanling
authors.initials: W
authors.lastname: Lin
authors.affiliation: South China Sea Fishery Research Institute, Chinese Academy of Fishery Science, Ministry of Agriculture, PR China; Key Laboratory of Aquatic Product Processing, Ministry of Agriculture, PR China; National R&D Center for Aquatic Product Processing, Guangzhou 510300, PR China.
authors.forename: Xiaomin
authors.initials: X
authors.lastname: Yuan
mesh_terms: D002245:Carbon Dioxide / Q000737:chemistry; D025924:Chromatography, Supercritical Fluid / Q000379:methods*; D005227:Fatty Acids / Q000032:analysis; D005395:Fish Oils / Q000737:chemistry*; D005511:Food Handling / Q000379:methods*; D063427:Food Quality; D061353:Food Storage; D010084:Oxidation-Reduction; D017392:Thiobarbituric Acid Reactive Substances / Q000032:analysis; D055549:Volatile Organic Compounds / Q000032:analysis
chemical_list: D005227:Fatty Acids; D005395:Fish Oils; D017392:Thiobarbituric Acid Reactive Substances; D055549:Volatile Organic Compounds; D002245:Carbon Dioxide
keywords: Oil extraction; Storage stability; Sturgeon; Volatile compounds