GC-MS Analysis and Evaluation of In-vitro Antioxidant Potential and Total Phenolics Content of Wild Hops (Flemingia strobilifera (L.) W. T. Aiton)
Paper Details
GC-MS Analysis and Evaluation of In-vitro Antioxidant Potential and Total Phenolics Content of Wild Hops (Flemingia strobilifera (L.) W. T. Aiton)
Abstract
Wild hops (Flemingia strobilifera Linn.) is a shrub belonging to Fabaceae family. The leaves of F. strobilifera are commonly used by the Subanen, the indigenous group in Lapuyan, Zamboanga del Sur, Philippines to treat inflammation. In this study, the hydromethanolic (80%) and aqueous leaf extracts of F. strobilifera were evaluated for their antioxidant activity and total phenolics content. The active semi-volatile components of 80% methanol leaf extract were analyzed using Gas Chromatography-Mass Spectrometry (GC-MS). DPPH radical scavenging activity was used to determine the potential of this plant as anti-oxidant. Total phenolics content was determined using Folin-Ciocalteu reagent and calculated as gallic acid equivalence. GC-MS analysis revealed the presence of eight compounds. Both the 80% methanol and aqueous extracts of F. strobilifera showed significant scavenging activity with low IC50 values of 0.299 mg/mL and <0.25 mg/mL, respectively. There was positive correlation between the scavenging activity percentage and the total phenolics content only in the aqueous extract of F. strobilifera while 80% methanol extract showed negative correlation between inhibition percentage and total phenolics content which can be attributed to the solvent used and method used in quantification of phenolics. Nevertheless, the results suggest that these leaf extracts are potent source of antioxidant compounds and may serve as natural anti-inflammatory agents.
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Jhoan Rhea L. Pizon, Olga M. Nuñeza, Mylene M. Uy, W.T.P.S.K Senarath (2017), GC-MS Analysis and Evaluation of In-vitro Antioxidant Potential and Total Phenolics Content of Wild Hops (Flemingia strobilifera (L.) W. T. Aiton); IJB, V8, N1, January, P25-32
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