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Extraction of Dairy Phospholipids Using Switchable Solvents: A Feasibility Study
Shouyun Cheng1, Kaavya Rathnakumar1, Sergio I Martínez-Monteagudo2
1Dairy and Food Science Department, South Dakota State University, Alfred Dairy Science Hall, Brookings, SD 57007, USA.
Foods (Basel, Switzerland)
|July 21, 2019
Summary
Switchable hydrophilicity solvents (SHS) efficiently extract phospholipids (PLs) from dairy byproducts. This novel method significantly outperforms traditional techniques, offering a promising approach for PL recovery.
Area of Science:
- Chemistry
- Food Science
- Biotechnology
Background:
- Phospholipids (PLs) are valuable compounds found in dairy byproducts.
- Traditional extraction methods for PLs can be inefficient and environmentally taxing.
Purpose of the Study:
- To evaluate the efficacy of a switchable hydrophilicity solvent (SHS) for phospholipid extraction from dairy byproducts.
- To compare the SHS method with conventional Folch (FE) and Mojonnier (ME) extraction techniques.
Main Methods:
- Utilized N,N-dimethylcyclohexylamine (CyNMe2) as an SHS for phospholipid extraction.
- Performed extractions on raw cream, buttermilk, concentrated buttermilk, and beta-serum.
- Recovered extracted phospholipids by switching the solvent's hydrophilicity with CO2.
Main Results:
- SHS extraction efficiency varied from 0.33% to 99% across different dairy byproducts.
- Achieved up to 99% PL extraction from buttermilk using SHS.
- Demonstrated significantly higher PL recovery compared to FE and ME methods.
Conclusions:
- Switchable hydrophilicity solvents offer a highly effective and applicable method for phospholipid extraction from dairy byproducts.
- The SHS approach presents a superior alternative to conventional methods for PL recovery.
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