The synthesis and characterization of a xanthan gum-acrylamide-trimethylolpropane triglycidyl ether hydrogel

Meixia Zheng; Fengli Lian; Yao Xiong; Bo Liu; Yujing Zhu; Song Miao; Longtao Zhang; Baodong Zheng

doi:10.1016/j.foodchem.2018.08.083

The synthesis and characterization of a xanthan gum-acrylamide-trimethylolpropane triglycidyl ether hydrogel

Food Chem. 2019 Jan 30:272:574-579. doi: 10.1016/j.foodchem.2018.08.083. Epub 2018 Aug 21.

Authors

Meixia Zheng¹, Fengli Lian², Yao Xiong², Bo Liu¹, Yujing Zhu¹, Song Miao³, Longtao Zhang⁴, Baodong Zheng²

Affiliations

¹ Agricultural Bio-Resources Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, PR China.
² College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China; China-Ireland International Cooperation Laboratory of Foods Material Science and Structural Design, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China.
³ China-Ireland International Cooperation Laboratory of Foods Material Science and Structural Design, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China; Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.
⁴ College of Food Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China; China-Ireland International Cooperation Laboratory of Foods Material Science and Structural Design, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China. Electronic address: zlongtao@fafu.edu.cn.

PMID: 30309583
DOI: 10.1016/j.foodchem.2018.08.083

Abstract

To improve the thermal stability and adsorption performance, xanthan gum was modified with acrylamide and trimethylolpropane triglycidyl ether (TTE). The modified xanthan gum (XGTTE) was characterized by Fourier transform infrared (FT-IR) spectroscopy, X-ray diffractogram (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The characteristic peaks at 3449, 1655, 1611 and 1420 cm^-1 in the FT-IR confirm the modification. The XGTTE crystal grew well upon addition of TTE. The XRD and DSC data revealed that the XGTTE enhanced its thermal stability. Analysis of SEM revealed that the grafting introduced major changes on the microstructure making it porous and resulting in the adsorption of crystal violet (CV) with flocculation. The CV adsorption capacity of the hydrogel with different dosages of TTE (XGTTE2, XGTTE3, XGTTE4, XGTTE5 and XGTTE6) were between 28.13 with 35.12 mg/g. In addition, the adsorption capacity, thermal stability, and swelling property of XGTTE4 were the best.

Keywords: Acrylamide; Modification; Trimethylolpropane triglycidyl ether; Xanthan gum.

MeSH terms

Acrylamide / chemistry*
Adsorption
Calorimetry, Differential Scanning
Ether / chemistry*
Gentian Violet / chemistry
Hydrogels / chemical synthesis
Hydrogels / chemistry*
Polysaccharides, Bacterial / chemistry*
Propylene Glycols / chemistry
Spectroscopy, Fourier Transform Infrared
Temperature
X-Ray Diffraction

Substances

Hydrogels
Polysaccharides, Bacterial
Propylene Glycols
trimethylolpropane
Ether
Acrylamide
Gentian Violet
xanthan gum