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Published on: August 31, 2019
Preparation, characterization, and thermal stability of β-cyclodextrin/soybean lecithin inclusion complex
Xinge Wang1, Zhigang Luo, Zhigang Xiao
1Carbohydrate Lab, College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China.
Abstract:
β-Cyclodextrin (β-CD), which is widely used to increase the stability, solubility, and bioavailability of guests, can form host-guest inclusion complexes with a wide variety of organic molecules. In this study the β-CD/soybean lecithin inclusion complex was prepared. The effect of reaction parameters such as reaction temperature, reaction time and the molar ratio of β-CD/soybean lecithin on inclusion ratio were studied. The inclusion ratio of the product prepared under the optimal conditions of β-CD/soybean lecithin molar ratio 2:1, reaction temperature 60°C reaction time 2h was 40.2%. The results of UV-vis, DSC, XRD and FT-IR spectrum indicated the formation of inclusion complex. The thermal stability experiment indicated that the thermal stability of soybean lecithin in inclusion complex was significantly improved compared with free soybean lecithin.
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