KINETIC STUDY OF DPPH SCAVENGING IN THE PRESENCE OF MIXTURE OF ZINC AND VITAMIN C AS AN ANTIOXIDANT

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MOMEN HERAVI M.; HAGHI B.; MORSALI A.; ARDALAN P.; ARDALAN T.

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Journal: Journal of Chemical Health Risks Year:2012 | Volume:2 | Issue:2 Page(s): 43-50

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Title

KINETIC STUDY OF DPPH SCAVENGING IN THE PRESENCE OF MIXTURE OF ZINC AND VITAMIN C AS AN ANTIOXIDANT

Author(s)

Keywords

ANTIOXIDANT

DPPH

KINETIC

FREE RADICAL

UV-VIS SPECTROMETRY

Abstract

Reactions of FREE RADICALs and reactive oxygen species (ROS) with biological molecules in vivo play an important physiological role in many diseases.2, 2-diphenyl-1-picrylhydrazyl (DPPH) is a stable FREE RADICAL and often used as a routine reagent to evaluate the ANTIOXIDANT capacity of an ANTIOXIDANT. This study was undertaken to investigate the FREE RADICAL-scavenging and ANTIOXIDANT activities of Zinc, Vitamin C and mixture of them. UV-Vis spectrophotometry method was used to evaluate the ability of Zinc, Vitamin C and mixture of them to scavenge DPPH radical. The KINETIC parameters such as rate constant and activation energy in experimental conditions were calculated. The rate constants of the H atom abstraction by DPPH (1 k), in the presence of Zinc, Vitamin C and mixture of them were obtained (0.4209, 2.092 and 1.82 min-1) respectively, under pseudo-first-order conditions at 25oC.

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APA: Copy

MOMEN HERAVI, M., HAGHI, B., MORSALI, A., ARDALAN, P., & ARDALAN, T.. (2012). KINETIC STUDY OF DPPH SCAVENGING IN THE PRESENCE OF MIXTURE OF ZINC AND VITAMIN C AS AN ANTIOXIDANT. JOURNAL OF CHEMICAL HEALTH RISKS (JCHR), 2(2), 43-50. SID. https://sid.ir/paper/340205/en

Vancouver: Copy

MOMEN HERAVI M., HAGHI B., MORSALI A., ARDALAN P., ARDALAN T.. KINETIC STUDY OF DPPH SCAVENGING IN THE PRESENCE OF MIXTURE OF ZINC AND VITAMIN C AS AN ANTIOXIDANT. JOURNAL OF CHEMICAL HEALTH RISKS (JCHR)[Internet]. 2012;2(2):43-50. Available from: https://sid.ir/paper/340205/en

IEEE: Copy

M. MOMEN HERAVI, B. HAGHI, A. MORSALI, P. ARDALAN, and T. ARDALAN, “KINETIC STUDY OF DPPH SCAVENGING IN THE PRESENCE OF MIXTURE OF ZINC AND VITAMIN C AS AN ANTIOXIDANT,” JOURNAL OF CHEMICAL HEALTH RISKS (JCHR), vol. 2, no. 2, pp. 43–50, 2012, [Online]. Available: https://sid.ir/paper/340205/en

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