Volume 46, Issue 2 e16259
ORIGINAL ARTICLE

Simultaneous separation of protein and oil from the liver of sturgeon (Acipenser baerii) by three-phase partitioning

Xueer Han

Xueer Han

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Contribution: Project administration, Writing - original draft

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Anqi Liu

Anqi Liu

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Contribution: Data curation, Project administration

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Yunzhuoya Lin

Yunzhuoya Lin

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Contribution: Data curation, Project administration, Software

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Kailin Ye

Kailin Ye

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Contribution: Project administration

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Yinan Zhang

Yinan Zhang

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Contribution: Project administration

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Junhui Li

Junhui Li

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, P. R. China

Contribution: Writing - review & editing

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Yizhou Fang

Corresponding Author

Yizhou Fang

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, P. R. China

Correspondence

Yizhou Fang, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang 310018, P. R. China.

Email: [email protected]

Contribution: Conceptualization, Funding acquisition, Methodology, Writing - review & editing

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Guangrong Huang

Guangrong Huang

College of Life Sciences, China Jiliang University, Hangzhou, P. R. China

Key Laboratory of Marine Food Quality and Hazard Controlling Technology of Zhejiang Province, China Jiliang University, Hangzhou, P. R. China

Huangshan High Quality Development Institute, China Jiliang University, Huangshan, P. R. China

Contribution: Supervision, Validation

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First published: 16 December 2021
Citations: 1

Xueer Han, Anqi Liu and Yunzhuoya Lin contributed equally to this study.

Abstract

Sturgeon, as a high-yield economic fish species, is widely consumed, while large quantities of the liver are discarded. Three-phase partitioning (TPP) was developed in this study as an emerging technology which can well extract oil and protein from sturgeon liver at the same time. Through single-factor experiments and response surface analysis, we determined that the optimum extraction conditions were as follows: 36.65% mass fraction of ammonium sulfate, 2.88:1 liquid–solid ratio and pH 4.70. The yields of protein and oil were 70.08% and 86.77%, respectively, with an average yield of 78.44%. The qualities of obtained protein and oil were studied, and the results show that the protein and oil prepared by TPP both have high nutritional value and application value. Therefore, TPP would be a better alternative for extracting the oil and protein from sturgeon liver.

Practical applications

Both protein and lipid can be extracted from sturgeon liver by three-phase partitioning (TPP). The results show that TPP is a feasible method for simultaneously obtaining protein and oil.

CONFLICTS OF INTEREST

The author declares that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available upon request by contact with the corresponding author.

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