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Simultaneous extraction of DHA‐ and EPA‐rich oil and separation of proteins from Antarctic krill using three‐phase partitioning system of cosolvents and organic salt

Simultaneous extraction of DHA‐ and EPA‐rich oil and separation of proteins from Antarctic krill... INTRODUCTIONAntarctic krill is an important crustacean component of the Southern Ocean ecosystem. The fishery of Antarctic krill is the largest (estimated to reach up to 379 million tons) in the Southern Ocean.1,2 The krill there is rich in nutritional and functional potential because it contains abundant valuable bioactive components.2 These bioactive components include lipids, proteins, vitamin A, astaxanthin, flavonoids, etc. The krill lipid is rich in PUFAs (polyunsaturated fatty acids), such as EPA, DHA, etc.2‐4 EPA and DHA are omega‐3 PUFAs that are critical components of the human cerebral cortex, skin, and brain.5,6 EPA and DHA krill lipids are known to have noticeable health‐related effects when used as a food supplement.7 These health benefits include a reduction in intestinal inflammation,8 amelioration of hyperlipidemia,9 stimulation of cognitive function,10 skin protection,11 prevention of arthritis,12 and so on. Besides DHA/EPA‐rich oil, the whole krill is also rich in proteins up to 15%. In comparison, the quality of krill proteins is higher than that of milk proteins.13,14Due to a wide range of health benefits, krill oil is generally extracted by solvent extraction, supercritical fluid extraction, enzyme‐assisted pretreatment extraction, and non‐solvent extraction.2 Supercritical CO2 procedure has not been widely investigated yet in the process http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Chemical Technology & Biotechnology Wiley

Simultaneous extraction of DHA‐ and EPA‐rich oil and separation of proteins from Antarctic krill using three‐phase partitioning system of cosolvents and organic salt

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References (43)

Publisher
Wiley
Copyright
Copyright © 2022 Society of Chemical Industry
ISSN
0268-2575
eISSN
1097-4660
DOI
10.1002/jctb.7101
Publisher site
See Article on Publisher Site

Abstract

INTRODUCTIONAntarctic krill is an important crustacean component of the Southern Ocean ecosystem. The fishery of Antarctic krill is the largest (estimated to reach up to 379 million tons) in the Southern Ocean.1,2 The krill there is rich in nutritional and functional potential because it contains abundant valuable bioactive components.2 These bioactive components include lipids, proteins, vitamin A, astaxanthin, flavonoids, etc. The krill lipid is rich in PUFAs (polyunsaturated fatty acids), such as EPA, DHA, etc.2‐4 EPA and DHA are omega‐3 PUFAs that are critical components of the human cerebral cortex, skin, and brain.5,6 EPA and DHA krill lipids are known to have noticeable health‐related effects when used as a food supplement.7 These health benefits include a reduction in intestinal inflammation,8 amelioration of hyperlipidemia,9 stimulation of cognitive function,10 skin protection,11 prevention of arthritis,12 and so on. Besides DHA/EPA‐rich oil, the whole krill is also rich in proteins up to 15%. In comparison, the quality of krill proteins is higher than that of milk proteins.13,14Due to a wide range of health benefits, krill oil is generally extracted by solvent extraction, supercritical fluid extraction, enzyme‐assisted pretreatment extraction, and non‐solvent extraction.2 Supercritical CO2 procedure has not been widely investigated yet in the process

Journal

Journal of Chemical Technology & Biotechnology – Wiley

Published: Aug 1, 2022

Keywords: Antarctic krill; docosahexaenoic acid; eicosapentaenoic acid; extraction efficiency; three‐phase partitioning system; antioxidant

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