Task-specific ionic liquid-assisted extraction and separation of astaxanthin from shrimp waste.
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.
Bi
Wentao
W
Department of Chemical Engineering, Inha University, 253 Yonghyun-Dong, Nam-Ku, Incheon 402-751, Republic of Korea.
Tian
Minglei
M
Zhou
Jun
J
Row
Kyung Ho
KH
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
D007220:Industrial Waste; D052578:Ionic Liquids; D012997:Solvents; D024341:Xanthophylls; C005948:astaxanthine