Objective: In this study, the leaves of medicinal plant Bauhinia racemosa Lam. with different pharmacological activities were subjected to phytochemical screening and assessment of their in vitro inhibitory potential with porcine pancreatic α-amylase enzyme to treat and management of diabetes.Methods: Plant leaves were extracted sequentially with ethanol solvent. A modified 3,5-dinitrosalicylic acid method was adopted to screen α-amylase inhibition assay. The ethanol extract was analyzed qualitatively and gas chromatography-mass spectrometry analysis technique for the active phytoconstituents according to the standard protocols.Results: A phytochemical screening of leaves extract reveals the presence of carbohydrate, alkaloids, saponin, glycosides, steroids, tannins, flavonoids, triterpenoid, and phenolic compounds. The ethanol extract reported inhibition of α-amylase enzyme activity at IC 50 value 61.72 ± 0.03 µg/mL and acarbose as a standard drug at IC 50 value 28.07 ± 0.02 µg/mL. Conclusion:The results of the study indicate that B. racemosa Lam. leaves contain some of bioactive phytochemicals might to be exhibiting in vitro antidiabetic activity, which was leading to decreases the rate of starch digestion.
Vitex negundo belongs to the family Verbenaceae. Literature survey of the plant reveal that the vitex negundo possess antimicrobial, anti-inflammatory, analgesic, antibacterial, antifungal, anti-insects activities. In the present study the phytochemical compounds present in the ether extract of vitex negundo linn leaves extract analyzed and the free radical scavenging capacity of the extract. The experimental data showed that the ether extract of vitex negundo linn contain alkaloids, carbohydrate, glycosides, amino acids, proteins, tannins and phenolic compounds. The free radical scavenging capacity of the sample was measured by DPPH (2, 2-diphenyl-1-picrylhydrazyl) method. The IC 50 value of the ascorbic acid which is used as the standard is 14.97 while for sample is 46.84. the ether extract of vitex negundo leaves shows good antioxidant property.
Aims: The aim of present study to evaluate the antioxidant potential of Abrus precatorius Linn leaves ethanol extract containing bioactive compounds on free radical scavenger using DPPH. Ethanol extract of Abrus precatorius Linn leaves was subjected to preliminary phytochemical screening and fraction of extract was detected by Gas Chromatography-Mass Spectrometry analysis. Methodology and Results: GC-MS analysis of ethanol leaves extract was carried out on Shimadzu GC-MS model number QP 2010S and revealed the presence of 18 phytochemical compounds, with mome inositol as a dominant component. Antioxidant potential of leaves ethanol extract was evaluated using DPPH free radical scavenging assay at five different doses as 5, 10, 20, 30, 40 and 50 μg/mL and showed significant DPPH free radical scavenging potential with the IC50 value of 33.37 μg/mL. The bioautography of extract showed that fractions with the most prominent antioxidant potential tended to contain secondary metabolites reported in preliminary phytochemical screening such as alkaloids, carbohydrates, protein and amino acids, glycoside, tannins, flavonoids, triterpenoids and phenolic compounds. The results evaluate and justify the traditional relevance of Abrus precatorius Linn leaves ethanol extract for free radical scavenging potential as a antioxidant and can be used as a lead for the isolation of the antioxidant bioactive chemical constituents in further study. Conclusion: Preliminary phytochemical screening reported various bioactive compounds in the ethanol extract of Abrus precatorius Linn leaves and identified by GC-MS. The extract exhibited greater free radical scavenging activity i.e. antioxidant potential. The presence of various bioactive phytocompounds justifies the therapeutic use of the Abrus precatorius Linn plant leaves for various ailments by traditional practitioners.
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