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Citation: LI Yan, GONG Shilei, CHE Ying, JIN Li'e, Yan Guolan. Hydroxyl Radical Scavenging Activity and Kinetics of Vitamin C[J]. Chinese Journal of Applied Chemistry, ;2015, 32(8): 948-954. doi: 10.11944/j.issn.1000-0518.2015.08.140427 shu

Hydroxyl Radical Scavenging Activity and Kinetics of Vitamin C

1.
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China

Corresponding author: Yan Guolan,
Received Date: 15 December 2014
Available Online: 26 January 2015
Fund Project: 国家自然科学基金资助项目(51174144) (51174144)

For humanbeings,radicals scavenging plays an important role for maintaining the fundamental physiological and anti-ageing need.Comparison for competing scavenging ability of Vitamin C (V_C) with salicylic acid gives optimal scavenging condition for V_C.By fitting the Alberty equation,the maximum46.23% clearance of·OH by V_C reached when V_C concentration is 4.54 mmol/L at 47℃ for 90 min,and the maximum reaction rate is 0.11 mmol/(L·min).The dissociation constant for salicylic acid and V_C is 30.2 mmol/L and 1.2×10^-3mmol/L,respectively.The experimental data are well-fitted with relative error of 1.66%~5.40%.This is helpful for the effective and scientific usage of V_C.
- hydroxyl radical,
- ascorbic acid,
- clearance rate,
- reaction kinetics
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