Removal of Triolein Lipid From Aqueous System by Molecularly Imprinted Chitosan and Its Derivative

Authors

  • Soma Chakraborty Department of Chemistry, School of Science and Engineering, Loyola Schools, Ateneo de Manila University, Loyola Heights, Quezon City 1108
  • Xyza Jane Templonuevo Department of Chemistry, School of Science and Engineering, Loyola Schools, Ateneo de Manila University, Loyola Heights, Quezon City 1108

DOI:

https://doi.org/10.26534/kimika.v29i1.11-16

Keywords:

chitosan, N-acylated chitosan, molecularly imprinted polymer, triolein, lipid pollution

Abstract

Chitosan was molecularly imprinted to remove triolein (a model lipid triacylglyceride) from water. Molecularly-imprinted chitosan (chitosan-MIP) was synthesized by crosslinking it with glutaraldehyde in the presence of triolein as the template at 50°C for 2h. MIPs of octanoyl derivative of chitosan(Oct-MIP) were also prepared by similar method. Octanoyl chitosan was synthesized by N-acylation of chitosan using octanoyl chloride at room temperature for 12h. Contact angle measurements of water droplet on chitosan and octanoyl chitosan revealed increased hydrophobicity of octanoyl derivative of chitosan. FTIR spectroscopy was used to characterize the derivative and the MIPs. All the synthesized polymers. Oct-MIP and chitosan-MIP could imprint approximately 77% and 66% of triolein template, respectively. Binding experiments revealed that Oct-MIP exhibit higher triolein binding capacity than corresponding non-acylated polymers. In 6h, 1mg of Oct-MIP and chitosan-MIP could rebind 534.50µg and 380.35µg of triolein respectively. Non Imprinted octanoyl chitosan and chitosan bound 272µg and 198.24µg triolein respectively. Both types of MIPs could also bind a triolein analog (1,3-dioleoyl-2-palmitoyl glycerol).

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Published

2018-05-18

How to Cite

Chakraborty, S., & Templonuevo, X. J. (2018). Removal of Triolein Lipid From Aqueous System by Molecularly Imprinted Chitosan and Its Derivative. KIMIKA, 29(1), 11–16. https://doi.org/10.26534/kimika.v29i1.11-16

Issue

Vol. 29 No. 1 (2018)

Section

Research Articles

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