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Synthetic Methodology for Asymmetric Ferrocene Derived Bio-conjugate Systems via Solid Phase Resin-based Methodology
Published on: March 12, 2015
Synthesis and characterization of enzymatically cross-linked feruloyl amylopectin for curcumin encapsulation
Jianfei Zhu1, Yinxue Heng2, Dongxian Zhang3
1College of Food Science, Southwest University, Chongqing 400715, People's Republic of China; College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, People's Republic of China.
Abstract:
Feruloyl amylopectin (FAP) was synthesized by the N,N'-carbonyldiimidazole (CDI) activation method, and the enzymatically cross-linked feruloyl amylopectin (CL-FAP) was prepared via catalysis of horseradish peroxidase (HRP) with the presence of hydrogen peroxide (H2O2). RP-HPLC-DAD/ESI-TOF-MS measured ferulic acid and its derivatives in FAP and CL-FAP. FAP was primarily composed of two ferulate monomers, while CL-FAP was composed of two ferulate monomers and two ferulate dehydrodimers. The ester formation in the feruloyl group was confirmed by the presence of carbonyl and aromatic CC signal near 1,725 (1,723) and 1,510 cm(-1) in the FT-IR spectra. X-ray diffraction studies showed that the two modified amylopectins lost the ordered A-type crystalline structure, characteristic of maize amylopectin. The encapsulation capacity of curcumin (ECC) in 1mg/mL CL-FAP microemulsion was measured at 88.13 μg/mg by HPLC.

