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Stearidonic Acid Soybean Oil Enriched with Palmitic Acid at the sn-2 Position by Enzymatic Interesterification for Use as Human Milk Fat Analogues
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Funding Statement
This project was supported by Agriculture and Food Research Initiative Competitive Grant No. 2009-65503-05734 from the USDA National Institute of Food and Agriculture.
Section:Abstract
Stearidonic acid (SDA, C18:4n-3) enriched soybean oil may be added to the diet to increase intake of omega-3 fatty acids (FAs). Human milk fat has ≥60% of palmitic acid (PA), by weight, esterified at the sn-2 position to improve absorption of fat and calcium in infants. Enzymatic interesterification of SDA soybean oil and tripalmitin produced structured lipids (SLs) enriched with PA at the sn-2 position of the triacylglycerol. Reactions were catalyzed by Novozym 435 or Lipozyme TL IM under various conditions of time, temperature, and substrate mole ratio. Response surface methodology was used to design the experiments. Model optimization conditions were predicted to be 1:2 substrate mole ratio at 50 °C for 18 h with 10% (by weight) Lipozyme TL IM resulting in 6.82 ± 1.87% total SDA and 67.19 ± 9.59% PA at sn-2; 1:2 substrate mole ratio at 50 °C for 15.6 h resulting in 8.01 ± 2.41% total SDA and 64.43 ± 13.69% PA at sn-2 with 10% (by weight) Novozym 435 as the biocatalyst. The SLs may be useful as human milk fat analogues for infant formula formulation with health benefits of the omega-3 FAs.
Keywords:
human milk fat analogue; stearidonic acid; structured lipid; tripalmitinCiting Articles
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This article has been cited by 2 ACS Journal articles (2 most recent appear below).
Modifications of Stearidonic Acid Soybean Oil by Enzymatic Acidolysis for the Production of Human Milk Fat Analogues
Sarah A. Teichert and Casimir C. AkohJournal of Agricultural and Food Chemistry 0 (ja),Modifications of Stearidonic Acid Soybean Oil by Enzymatic Acidolysis for the Production of Human Milk Fat Analogues
Sarah A. Teichert and Casimir C. AkohJournal of Agricultural and Food Chemistry 0 (ja),Structured lipids (SLs) from stearidonic acid (SDA) soybean oil pre-enriched with palmitic acid (PA) at the sn-2 position with Novozym 435 (NSL) or Lipozyme TL IM (LSL) from our previous research were further enriched with γ-linolenic acid (GLA) or ...
Characterization of Stearidonic Acid Soybean Oil Enriched with Palmitic Acid Produced by Solvent-free Enzymatic Interesterification
Sarah A. Teichert and Casimir C. AkohJournal of Agricultural and Food Chemistry2011 59 (17), 9588-9595Characterization of Stearidonic Acid Soybean Oil Enriched with Palmitic Acid Produced by Solvent-free Enzymatic Interesterification
Sarah A. Teichert and Casimir C. AkohJournal of Agricultural and Food Chemistry2011 59 (17), 9588-9595Stearidonic acid soybean oil (SDASO) is a plant source of n-3 polyunsaturated fatty acids (n-3 PUFAs). Solvent-free enzymatic interesterification was used to produce structured lipids (SLs) in a 1 L stir-batch reactor with a 1:2 substrate mole ratio of ...
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History
- Published In Issue May 25, 2011
- Article ASAPMay 03, 2011
- Just Accepted ManuscriptApril 25, 2011
- Received: January 24, 2011
Accepted: April 25, 2011
Revised: April 15, 2011
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