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Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

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Published on: February 27, 2021

Maillard reaction products from chitosan-xylan ionic liquid solution.

Yuqiong Luo¹, Yunzhi Ling, Xiaoying Wang

¹State Key Laboratory of Pulp & Paper Engineering, South China University of Technology, Guangzhou 510640, China.

Carbohydrate Polymers

|August 31, 2013

Summary

Researchers developed a simple method to create Maillard reaction products (MRPs) from chitosan and xylan. The resulting chitosan-xylan MRPs exhibit significant antioxidant properties, making them promising for the food industry.

Keywords:

Antioxidant activity Chitosan Ionic liquid Maillard reaction Xylan

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Area of Science:

Biopolymer chemistry
Food science

Background:

Chitosan and xylan are abundant biopolymers with potential applications.
Maillard reaction products (MRPs) often possess beneficial functional properties, including antioxidant activity.
Developing efficient methods to synthesize novel MRPs is of interest for food applications.

Purpose of the Study:

To develop a facile method for preparing Maillard reaction products (MRPs) from chitosan and xylan.
To characterize the structure of the resulting chitosan-xylan conjugate.
To evaluate the antioxidant properties of the synthesized chitosan-xylan MRPs.

Main Methods:

Preparation of Maillard reaction products (MRPs) from chitosan and xylan in a co-solvent ionic liquid.
Monitoring Maillard reaction using UV absorbance and fluorescence.
Structural analysis using Fourier-transform infrared spectroscopy (FT-IR), Nuclear Magnetic Resonance (NMR), X-ray diffraction (XRD), and Thermogravimetric analysis (TG).

Main Results:

A facile method for synthesizing chitosan-xylan MRPs in ionic liquid was established.
Maillard reaction was confirmed by UV absorbance and fluorescence changes.
Structural analysis indicated the destruction of hydrogen bonds in chitosan, leading to the formation of chitosan-xylan MRPs.
Optimal Maillard reaction and highest antioxidant activity were observed at a chitosan to xylan mass ratio of 1:1.

Conclusions:

Chitosan-xylan MRPs can be effectively synthesized using a co-solvent ionic liquid method.
The 1:1 chitosan-xylan conjugate exhibits significant antioxidant properties.
The synthesized chitosan-xylan MRP is a promising antioxidant agent for the food industry.