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Evaluation of the Free Radical Scavenging Activity of Cynomorium songaricum Rupr. by a Novel DPPH‐HPLC Method
Author(s) -
Liu Yewei,
Li Hongbing,
Wang Xiaofei,
Zhang Gexiang,
Wang Yu,
Di Duolong
Publication year - 2011
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1750-3841.2011.02392.x
Subject(s) - scavenging , dpph , chemistry , high performance liquid chromatography , chromatography , methanol , elution , calibration curve , antioxidant , gradient elution , organic chemistry , detection limit
A novel DPPH‐HPLC method was successfully developed for evaluating the free radical scavenging activity of Cynomorium songaricum Rupr. The analysis was achieved on a YMC C 30 column with the gradient elution by using water and methanol as mobile phase. The intraday and interday precisions were less than 4.36%. The correlation coefficients of the calibration curve for the standard antioxidants exceeded 0.9967. The proposed method was found to be simple, rapid, and sensitive for evaluating the free radical scavenging activity of natural product. Quantitative analyses of the samples showed that the free radical scavenging activity of the samples from different grown sites varied significantly.