title: Task-specific ionic liquid-assisted extraction and separation of astaxanthin from shrimp waste.
abstract: Astaxanthin, as an outstanding antioxidant reagent, was successfully extracted from shrimp waste by the ionic liquids based ultrasonic-assisted extraction. Seven kinds of imidazolium ionic liquids with different cations and anions were investigated in this work and one task-specific ionic liquid in ethanol with 0.50molL(-1) was selected as the solvent. At the optimized ultrasonic extraction conditions, the extraction amount of astaxanthin increased 98% (92.7microg g(-1)) compared to the conventional method (46.7microg g(-1)). Furthermore, the extracted solution was isolated through the solid-phase extraction with a molecularly imprinted polymer sorbent. After loading the samples on molecularly imprinted polymer cartridge, the different washing and elution solvents, such as water, methanol, n-hexane, acetone and dichloromethane, were evaluated, and finally, astaxanthin was separated from the shrimp waste extract.
authors.affiliation: Department of Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, Republic of Korea.
authors.forename: Wentao
authors.initials: W
authors.lastname: Bi
authors.forename: Minglei
authors.initials: M
authors.lastname: Tian
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.forename: Kyung Ho
authors.initials: KH
authors.lastname: Row
mesh_terms: D000818:Animals; D002138:Calibration; D005591:Chemical Fractionation / Q000379:methods*; D002851:Chromatography, High Pressure Liquid; D033364:Decapoda; D019649:Food Industry; D007220:Industrial Waste; D052578:Ionic Liquids / Q000737:chemistry; D008460:Meat; D012997:Solvents / Q000737:chemistry; D024341:Xanthophylls / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D007220:Industrial Waste; D052578:Ionic Liquids; D012997:Solvents; D024341:Xanthophylls; C005948:astaxanthine