3 research outputs found

    COMPARATIVE ANALYSIS OF ANTIOXIDANT ACTIVITY AND PHYTOCHEMICAL CONTENTS IN ETHANOLIC LEAF EXTRACTS OF IN VITRO AND FIELD GROWN WITHANIA SOMNIFERA

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    Objective: The present study was planned to compare antioxidant activity in vitro and field grown Withania somnifera was assessed using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and nitric oxide (NO) assays. Medicinal plants are a major source of phytochemicals used for the treatments of human diseases. W. somnifera has anti-inflammatory, antioxidant, and antimicrobial properties.Methods: Antioxidant activity and phytochemical contents in W. somnifera were determined spectrophotometrically.Results: The results of antioxidant activity of field grown ethanolic leaf extract of W. somnifera showed maximum inhibition of 72.08% and 77.85%in DPPH (50 μg/ml) and NO (100 μg/ml) scavenging assays, respectively. Field grown ethanolic leaf extract of W. somnifera showed maximumconcentrations of phenolics, flavonoids, and carotenoids, as active phytochemicals, determined spectrophotometrically, which were found as676.5 μg/ml, 557.5 μg/ml, and 469 μg/ml, respectively, as compared to in vitro plant extracts.Conclusions: This study demonstrated that antioxidant activity and phytochemical contents of field grown ethanolic leaf extract of W. somnifera were found to be comparatively higher than in vitro plant extracts. Leaf extracts of W. somnifera are a potential source of antioxidants and could prevent many free radical-related diseases.Keywords: Carotenoids content, 1-diphenyl-2-picrylhydrazyl scavenging assay, Flavonoids content, Nitric oxide radical scavenging assay, Phenoliccontent

    EVALUATION OF ANTIOXIDANT, ANTIBACTERIAL, ANTIHEMOLYTIC, AND PHYOCHEMICAL PROPERTIES OF FICUS BENJAMINA, FICUS INFECTORIA, AND FICUS KRISHNAE

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    Objective: The study was conducted for the evaluation of antioxidant, antibacterial, antihemolytic, and phytochemical activity of Ficus benjamina (FB), Ficus infectoria (FI), and Ficus krishnae (FK). Methods: The antioxidant analysis of FB, FI, and FK was done by 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and nitric oxide (NO) scavenging assay. Evaluation was performed for antibacterial activity against Clostridium perfringens and Staphylococcus aureus by an agar well diffusion method. Hemolytic assay was performed with red blood cell suspension for evaluating antihemolytic activity. Standard protocols were used for phytochemical activity. Results: In the results of DPPH antioxidant activity assay, it was found that DPPH inhibition was significantly increased with increasing amount of extract. For NO scavenging assay, ANOVA revealed that the inhibition of NO is not significantly affected with an increase in the amount of extract used. Results of antibacterial activity revealed that methanolic extract of FI shows a maximum zone of inhibition (30.5 mm) against S. aureus and aqueous extract of FK shows a maximum zone of inhibition (28 mm) against C. perfringens. The antihemolytic activity of FB, FI, and FK was performed by measuring percentage inhibition of plant extracts at different concentrations. FK has shown maximum percentage inhibition activity, i.e., 28.64 % at 60 μg/ml, whereas FB shows minimum inhibition activity, i.e. 2.7 % at 40 μg/ml. Flavonoid content was found to be 0.593 μg/ml, 0.783 μg/ml, and 1.023 μg/ml, whereas phenolic content was found to be 0.267 μg/ml, 0.298 μg/ml, and 0.355 μg/ml for FB, FI, and FK, respectively. Conclusion: FB, FI, and FK extracts contain various phytochemicals which confirm that these plants can be used for therapeutic use and traditional medicine. The methanolic as well as aqueous extracts of the plants have shown the potential to kill the tested microorganism (C. perfringens and S. aureus) and hence can be used as an antibiotic and potential antibacterial

    SYNERGISTIC EFFECT OF CURCUMA LONGA AND GLYCYRRHIZA GLABRA EXTRACTS WITH COPPER IONS ON FOOD SPOILAGE BACTERIA

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    Objective: To evaluate the synergistic antibacterial activity of ethanolic and aqueous extracts of Curcuma longa and Glycyrrhiza glabra in combination with copper metal ions. Methods: The phytochemical analysis of Curcuma longa and Glycyrrhiza glabra's extracts were observed by standard procedures. Aqueous and ethanolic extracts of Curcuma longa and Glycyrrhiza glabra were evaluated for their antibacterial activity against Paenibacillus popilliae by an agar well diffusion method. Antibacterial activity of copper ions and their synergistic effect was also evaluated.Results: The phytochemical analysis of the aqueous and ethanolic extracts was carried out for the detection of flavonoids, tannins, saponins, terpenoids, alkaloids and coumarins. The results of combinatorial effects of copper metal ions with aqueous extracts of Curcuma longa and Glycyrrhiza glabra showed maximum antibacterial activity (30±0.33 mm and 30±0.00 mm) when 25 µl of plant extract combined with 25 µl of copper ions, whereas minimum antibacterial activity (23±0.33 mm and 22±0.33 mm) was shown when 45 µl of plant extract combined with 5 µl of copper ions, when evaluated against Paenibacillus popilliae. An increase of 187.5% and 12.55% (least) was observed in aqueous and ethanolic extracts of Curcuma longa on supplementation of copper metal ions.Conclusion: The results suggest that crude extracts from these plants can be used for therapeutic purposes as they possess potent antibacterial properties due to the presence of various phyto chemicals in them. The aqueous plant extracts showed enhanced activity in conjugation with copper metal ions against food spoilage bacteria as compared to ethanolic plant extracts.Â
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