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Synthesis, Characterization, Antibacterial and Emulsifying Properties of Agar Benzoate by Qiong Xiao; Zizhou Chen; Mingze Ma; Xiangji Xie; Huifen Weng; Yonghui Zhang; Jun Chen; Anfeng Xiao is a Materials Science article available to read on EtoBox.
What is Synthesis, Characterization, Antibacterial and Emulsifying Properties of Agar Benzoate about?
Agar benzoate (AB) with different degrees of substitution (DS) was synthesized by the esterification of agar and benzoic anhydride in aqueous solution. The DS could be regulated by adjusting composition ratio, pH, and temperature. Its chemical structure was determined by Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (NMR). 13C NMR spectrum of the AB suggested the main substitution occurred at the C-6 in the d-galactopyranose. Cryo-scanning electron microscopy (Cryo-SEM) showed that the aperture of AB was larger than that of agar. The thermal performance of AB decreased slightly, but this did not affect its performance. AB showed the highest relative antibacterial activity against Escherichia coli, S. aureus and Alternaria alternata, reaching 100 % (AB 20 g/L), 100 % (AB 40 g/L) and 19.35 % (7 d incubation), respectively. Moreover, the obtained AB possessed good emulsion stability. These antibacterial AB have broad application prospects in the field of fruit and vegetable preservation.
Who reads Synthesis, Characterization, Antibacterial and Emulsifying Properties of Agar Benzoate?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- Qiong Xiao; Zizhou Chen; Mingze Ma; Xiangji Xie; Huifen Weng; Yonghui Zhang; Jun Chen; Anfeng Xiao
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Materials Science (Physical Sciences)