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Electrochemical behavior of chlorogenic acid at a boron-doped diamond electrode and estimation of the antioxidant capacity in the coffee samples based on its oxidation peak.
J Food Sci. 2012 Apr; 77(4):C408-13.JF

Abstract

In this study, an electroanalytical methodology for the determination of chlorogenic acid (CGA) was achieved at a boron-doped diamond electrode under adsorptive transfer stripping voltammetric conditions. The values obtained for CGA were used to estimate the antioxidant properties of the coffee sample based on CGA oxidation. By using square-wave stripping mode, the compound yielded a well-defined voltammetric response at +0.49 V with respect to Ag/AgCl in Britton-Robinson buffer at pH 3.0 (after 120 s accumulations at a fixed potential of 0.40 V). At the optimum experimental conditions, linear calibration curve is obtained within the concentration range of 0.25 to 4.0 μg mL⁻¹ with the limit of detection 0.049 μg mL⁻¹ . The developed protocol was successfully applied for the analysis of antioxidant capacity in the coffee products such as Turkish coffee and instant coffee.

Authors+Show Affiliations

Yüzüncü Yıl University, Faculty of Science, Department of Analytical Chemistry, Van, Turkey. yavuzyardim2002@yahoo.com

Pub Type(s)

Comparative Study
Journal Article
Validation Study

Language

eng

PubMed ID

22394181

Citation

Yardım, Yavuz. "Electrochemical Behavior of Chlorogenic Acid at a Boron-doped Diamond Electrode and Estimation of the Antioxidant Capacity in the Coffee Samples Based On Its Oxidation Peak." Journal of Food Science, vol. 77, no. 4, 2012, pp. C408-13.
Yardım Y. Electrochemical behavior of chlorogenic acid at a boron-doped diamond electrode and estimation of the antioxidant capacity in the coffee samples based on its oxidation peak. J Food Sci. 2012;77(4):C408-13.
Yardım, Y. (2012). Electrochemical behavior of chlorogenic acid at a boron-doped diamond electrode and estimation of the antioxidant capacity in the coffee samples based on its oxidation peak. Journal of Food Science, 77(4), C408-13. https://doi.org/10.1111/j.1750-3841.2011.02609.x
Yardım Y. Electrochemical Behavior of Chlorogenic Acid at a Boron-doped Diamond Electrode and Estimation of the Antioxidant Capacity in the Coffee Samples Based On Its Oxidation Peak. J Food Sci. 2012;77(4):C408-13. PubMed PMID: 22394181.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Electrochemical behavior of chlorogenic acid at a boron-doped diamond electrode and estimation of the antioxidant capacity in the coffee samples based on its oxidation peak. A1 - Yardım,Yavuz, Y1 - 2012/03/06/ PY - 2012/3/8/entrez PY - 2012/3/8/pubmed PY - 2012/8/15/medline SP - C408 EP - 13 JF - Journal of food science JO - J Food Sci VL - 77 IS - 4 N2 - In this study, an electroanalytical methodology for the determination of chlorogenic acid (CGA) was achieved at a boron-doped diamond electrode under adsorptive transfer stripping voltammetric conditions. The values obtained for CGA were used to estimate the antioxidant properties of the coffee sample based on CGA oxidation. By using square-wave stripping mode, the compound yielded a well-defined voltammetric response at +0.49 V with respect to Ag/AgCl in Britton-Robinson buffer at pH 3.0 (after 120 s accumulations at a fixed potential of 0.40 V). At the optimum experimental conditions, linear calibration curve is obtained within the concentration range of 0.25 to 4.0 μg mL⁻¹ with the limit of detection 0.049 μg mL⁻¹ . The developed protocol was successfully applied for the analysis of antioxidant capacity in the coffee products such as Turkish coffee and instant coffee. SN - 1750-3841 UR - https://www.unboundmedicine.com/medline/citation/22394181/Electrochemical_behavior_of_chlorogenic_acid_at_a_boron_doped_diamond_electrode_and_estimation_of_the_antioxidant_capacity_in_the_coffee_samples_based_on_its_oxidation_peak_ L2 - https://doi.org/10.1111/j.1750-3841.2011.02609.x DB - PRIME DP - Unbound Medicine ER -