Effects of Pulsed Electric Fields (PEF) on Vitamin C and Its Antioxidant Properties
AbstractIn this study, pulsed electric fields (PEF) treatments and their effects on the structure of vitamin C (VIT-C) were estimated by fluorescence and Fourier transform infrared (FT-IR) spectroscopy, the relative content of VIT-C was measured by HPLC and the antioxidant properties of treated VIT-C by DPPH radical scavenging as well as reducing power tests. The fluorescence intensity of treated VIT-C increased slightly compared to the untreated VIT-C. Moreover, the effect of PEF on the structure of VIT-C was observed using the FT-IR spectra. These phenomena indicated that the PEF affected the conformation of VIT-C, which promoted the VIT-C isomer transformed enol-form into keto-form. In addition, the PEF treatments did not suffer the damage to VIT-C and could slow down the oxidation process in involving of experimental conditions by HPLC. The antioxidant properties of the treated VIT-C were enhanced, which was proved by radical scavenging and also the reducing power tests. View Full-Text
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Zhang, Z.-H.; Zeng, X.-A.; Brennan, C.S.; Brennan, M.; Han, Z.; Xiong, X.-Y. Effects of Pulsed Electric Fields (PEF) on Vitamin C and Its Antioxidant Properties. Int. J. Mol. Sci. 2015, 16, 24159-24173.
Zhang Z-H, Zeng X-A, Brennan CS, Brennan M, Han Z, Xiong X-Y. Effects of Pulsed Electric Fields (PEF) on Vitamin C and Its Antioxidant Properties. International Journal of Molecular Sciences. 2015; 16(10):24159-24173.Chicago/Turabian Style
Zhang, Zhi-Hong; Zeng, Xin-An; Brennan, Charles S.; Brennan, Margaret; Han, Zhong; Xiong, Xia-Yu. 2015. "Effects of Pulsed Electric Fields (PEF) on Vitamin C and Its Antioxidant Properties." Int. J. Mol. Sci. 16, no. 10: 24159-24173.