Significance of DPPH radical
The DPPH radical is a stable free radical widely employed in assays to evaluate the antioxidant capacity of various substances. It is particularly useful in assessing the scavenging ability of antioxidants, such as those found in plant extracts. By measuring the decrease in absorbance at 515 nm, researchers can determine the antioxidant activity of compounds. The DPPH assay serves as a standard method for evaluating the effectiveness of antioxidants in different materials, highlighting their potential health benefits.
Synonyms: Dpph free radical, 1,1-diphenyl-2-picrylhydrazyl, Stable free radical
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The concept of DPPH radical in scientific sources
The DPPH radical is a stable free radical utilized to assess the antioxidant capacity of substances, as it measures their ability to neutralize or quench the radical, indicating potential health benefits.
From: World Journal of Pharmaceutical Research
(1) A stable nitrogen-centered free radical used in assays to assess the radical scavenging ability of substances, including the methanolic extract of N-Miracle.[1] (2) Stable free radicals used in assays to evaluate the antioxidant capacity of various substances.[2] (3) A stable radical used in measuring antioxidant activity through percentage inhibition.[3] (4) DPPH radical is a stable free radical used to evaluate the anti-oxidant activity of various substances, including ascorbic acid and herbal extracts.[4] (5) DPPH radicals have strong absorption maximum at 515 nm which decreases due to the reduction by antioxidants.[5]
From: Ancient Science of Life
(1) A stable free radical that is commonly used to evaluate antioxidant activity through the DPPH assay, where the reduction of DPPH indicates antioxidant potential.[6]
From: Journal of Ayurveda and Integrative Medicine
(1) Stable free radicals used in tests to measure the antioxidant capability of substances, including asafoetida.[7]