Abstract Maillard reaction between chitosan and xylan was performed in common ionic liquid solvent at the first time. FT-IR, UV-visible spectrophotometry and fluorescence spectrometry were used to characterize the structures and the optical properties of the products. The results revealed that Maillard reaction happened when the mass ratios of chitosan to xylan were 1:1 and 1:3. In the FT-IR spectra, the new peaks at 1712 cm−1 and 802 cm−1 were belonged to absorption peaks of Maillard reaction products (MRPs). In the UV-visible and fluorescence spectra, there were the marking peak at 294 nm which belonged to furfural, and the fluorescence peak at 415 nm which corresponded to MRPs, respectively. Relatively high antibacterial activity and antioxidant property were also noted for the chitosan-xylan conjugate with mass ratio 1:1 as compared to native chitosan and xylan.

中文翻译：

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离子液体中壳聚糖与木聚糖的美拉德反应

摘要 壳聚糖与木聚糖的美拉德反应首次在普通离子液体溶剂中进行。FT-IR、紫外-可见分光光度法和荧光光谱法用于表征产物的结构和光学性质。结果表明，当壳聚糖与木聚糖的质量比为1:1和1:3时，发生美拉德反应。在 FT-IR 光谱中，1712 cm-1 和 802 cm-1 处的新峰属于美拉德反应产物 (MRP) 的吸收峰。在紫外-可见光谱和荧光光谱中，分别在294 nm处有属于糠醛的标记峰，在415 nm处有与MRPs相对应的荧光峰。质量比为 1 的壳聚糖-木聚糖偶联物也具有相对较高的抗菌活性和抗氧化性能：