Enzymatic Synthesis of Ferulyl Oleins and their Inhibition Effects on Nitrosamine

Lin Lin Chen

doi:10.4028/www.scientific.net/AMM.195-196.412

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 195-196Enzymatic Synthesis of Ferulyl Oleins and their...

Enzymatic Synthesis of Ferulyl Oleins and their Inhibition Effects on Nitrosamine

Abstract:

Ferulyl oleins were synthesized from ethyl ferulate and triolein with Lipopan lipase. The influences of reaction parameters, such as reaction system and water activity were evaluated. Among the tested lipases in different reaction system, Lipopan S BG appeared to be the most appropriate resulting in a overall yield of ferulyl oleins 28.31% within 120h in toluene system, whereas trans esterification degree with other lipases did not exceed 20% in any condition. Similarly, the Lipopan lipase expressed the highest transesterification yield at a_w = 0.33. The inhibition of nitrosamine by ferulyl oleins in vitro experiments were performed. The results showed that ferulyl oleins had a greater ability to inhibit the N-nitrosodimethylamine formation than ferulic acid and ethyl ferulate did. Ferulyl oleins showed an inhibition rate as high as 76.9%. In the case of nitrite, the extent of the inhibition by ferulyl oleins was slightly lower than EF. They all exhibited the highest inhibition rate at the concentration of 1.5mg/mL. The results suggest that ferulyl oleins can inhibite nitrosamine formation efficiently.

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Periodical:

Applied Mechanics and Materials (Volumes 195-196)

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412-417

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https://doi.org/10.4028/www.scientific.net/AMM.195-196.412

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Online since:

August 2012

Authors:

Lin Lin Chen

Keywords:

Ethyl Ferulate, Ferulyl Oleins, Lipopan Lipase, Nitrosamine, Triolein

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