2011 · 15 citations · 18 references
AgricultureBotanyPlant SciencesEthnobotanyFood ChemistryPlant BiochemistryAntioxidant DefensePhenolic Compound AnalysisTannin AnalysisTannin ChemistryAntioxidant Activity AssaysAntioxidant Capacity AssaysAntioxidantsFree Radical ScavengingPhenolic Compound Antioxidant CapacityPhenolic Content AnalysisPlant Extract AntioxidantsTotal Phenolic Content
There has been growing interest in the beneficial health effects of consuming fruits and vegetables. Mainly, the presence of phenolic antioxidants is believed to have the protective mechanisms. In the present study the young leaves and barks of Acacia nilotica (L.) DEL. The total phenolic content of the extracts was determined by Folin–Ciocalteu method and antioxidant activity of the extracts was assayed through some in vitro models such as antioxidant capacity by β‐carotene‐linoleate model system, and radical scavenging activity using α,α‐diphenyl‐β‐picrylhydrazyl (DPPH) method. Recovery percent and total phenolic content of aqueous acetone extracts registered highest values. Though all the extracts exhibited reducing activity, the acetone extracts of both leaf and bark found to be registered highest activity and comparable to that of tannic acid. Like reducing power activity, the similar line of dose dependent trend has also been maintained in the DPPH radical scavenging activity. This might be due to the presence of high molecular compounds like tannins. The results indicated that the extent of antioxidant activity of the extract is in accordance with the amount of total phenolics present in that extract and the young leaves and barks of Acacia nilotica is rich in phenolics may provide a good source of antioxidant.
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Antioxidant Determinations by the Use of a Stable Free Radical
Marsden S. Blois · Nature · 1958 · 12.8K citations
Antioxidant Activity of Plant Extracts Containing Phenolic Compounds
Marja P. Kähkönen, Anu Hopia, Heikki Vuorela et al. · Journal of Agricultural and Food Chemistry · 1999 · 3.8K citations
Agriculture, Botany, Plant Sciences +14
The Relative Antioxidant Activities of Plant-Derived Polyphenolic Flavonoids
Catherine Rice‐Evans, Nicholas J. Miller, Paul Bolwell et al. · Free Radical Research · 1995 · 2.2K citations
Agriculture, Botany, Plant Sciences +15
Perumal Siddhuraju · Journal of Agricultural and Food Chemistry · 2003 · 1.4K citations