GC-MS Analysis and Evaluation of Antimicrobial, Free Radical Scavenging and In Vitro Cytotoxic Activities of the Methanolic Extract of Rheum Undulatum

2012 ◽  
Vol 4 (12) ◽  
pp. 1238-1246 ◽  
Author(s):  
Duraisamy Kalpana ◽  
Natarajan Velmurugan ◽  
Rizwan Wahab ◽  
Jae Young Cho ◽  
I. H. Hwang ◽  
...  
Keyword(s):  
Free Radical ◽  
Methanolic Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Cytotoxic Activities ◽  
Analysis And Evaluation ◽  
Ms Analysis ◽  
Rheum Undulatum

scholarly journals Domestic Cooking Effects of Bambara Groundnuts and Common Beans in the Antioxidant Properties and Polyphenol Profiles

2017 ◽  
Vol 6 (2) ◽  
pp. 24 ◽  
Author(s):  
V. Nyau ◽  
S. Prakash ◽  
J. Rodrigues ◽  
J. Farrant
Keyword(s):  
Free Radical ◽  
Methanolic Extract ◽  
Antioxidant Activities ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Esi Ms ◽  
Positive Effects ◽  
Phytochemical Profiles

Processing of legumes before consumption has several effects on micronutrients, macronutrients and phytonutrients. This study was undertaken to investigate the effect of domestic processing on antioxidant activities and phenolic phytochemicals of the red bambara groundnuts and red beans. The study employed in vitro antioxidant assays (DPPH and FRAP) to screen for antioxidant properties, HPLC-PDA-ESI-MS and Folin Ciocalteu assay to screen for phenolic phytochemical profiles. Domestic cooking displayed positive effects on the antioxidant activity and phenolic phytochemical profiles of the two legumes. The free radical scavenging speed increased 10-fold in the methanolic extract from cooked red bambara groundnuts compared to uncooked. By contrast, the free radical scavenging speed increased 20-fold in the methanolic extract from cooked red beans compared to uncooked. HPLC-PDA-ESI-MS profiles of the cooked red bambara groundnuts and red beans revealed a number of emergent phenolic compounds, mainly flavonoids. These data indicate that cooking appear to enhance the nutraceutical profiles of the legumes investigated.

scholarly journals In vitro Antioxidant and Cytotoxic Activities of Methanolic Leaf Extract of Ficus hispida Linn.

1970 ◽  
Vol 3 (2) ◽  
pp. 29-36 ◽  
Author(s):  
Moni Rani Saha ◽  
Manik Chandra Shill ◽  
Subrata Kumar Biswas ◽  
Abdullah Faruque
Keyword(s):  
Free Radical ◽  
Key Words ◽  
Leaf Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Cytotoxic Activities ◽  
Ficus Hispida

Key words: Ficus Hispida Linn.; DPPH free radical scavenging; antioxidant; cytotoxicityDOI: http://dx.doi.org/10.3329/sjps.v3i2.8035 S.J. Pharm. Sci 3(2): 29-36

scholarly journals Assessment of anti-oxidant activity of Ficus benghalensis leaves: an In-vitro design

2019 ◽  
Vol 9 (2) ◽  
pp. 20-24
Author(s):  
Aditi Pedgaonkar ◽  
Gadeela Manish Adithya ◽  
Panyala Sandhya Reddy ◽  
Kollu Thanuja ◽  
Lankadasari Divyashree ◽  
...  
Keyword(s):  
Free Radical ◽  
Methanolic Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Scavenging Activity ◽  
Ficus Benghalensis ◽  
Anti Oxidant ◽  
Free Radical Scavenging Assay ◽  
Radical Scavenging Assay

Background: Medicinal plants represent a rich source of natural anti-oxidants. The traditional medicine involves the use of different plant extracts of bioactive constituents. Ficus benghalensis is a large evergreen tree found throughout India. It is commonly called Banyan tree. It is used in traditional system of medicine like Ayurveda and homoeopathy. Ficus is a huge tropical deciduous or evergreen tree with more than 800 species. Objective: Anti-oxidant effect of ethnomedicinal important plant species Ficus benghalensis (Family-Moraceae) was screened. The aim of this study was to assess the in-vitro potential of methanolic extract of Ficus benghalensis leaves as a natural anti-oxidant. Method: Assessment of in vitro anti-oxidant activity of methanolic leaves extract of Ficus benghalensis was determined by DPPH free radical scavenging assay. Results: The methanolic extract of Ficus benghalensis leaves demonstrates a remarkable amount of phenolic content (54 μg/ml of GAE/100gm of extract) by using Folin-ciocalteu reagent. In-vitro anti-oxidant activity of methanolic leaves extract of Ficus benghalensis was determined by DPPH free radical scavenging assay, which showed significant anti-oxidant activity compared to standard anti-oxidant (ascorbic acid). A direct correlation between total phenol and anti-oxidant activity indicates polyphenols are the main anti-oxidants. Conclusion: These findings suggest the excellent medicinal bio-activity of Ficus benghalensis and explain the popularity of this plant in the folk medicine as a remedy for different disorders, thus supporting its folklore application as preventive remedy as an anti-oxidant. The present study shows that Ficus benghalensis leaves have radical scavenging activity and can be considered as good sources of natural anti-oxidants for medicinal and commercial uses. Keywords: Ficus benghalensis, anti-oxidant, DPPH scavenging activity, Folin-ciocalteu reagent.

scholarly journals In –vitro Antioxidant Activity of Methanolic Extract of the Roots of Bergenia ciliata

2018 ◽  
Vol 1 (4) ◽  
pp. 31-34
Author(s):  
Suman Lal Shrestha ◽  
Suresh Awale ◽  
Surya Kant Kalauni
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Methanolic Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Ic50 Value ◽  
Free Radical Scavenging Assay ◽  
Radical Scavenging Assay ◽  
In Vitro Antioxidant Activity

Bergenia ciliata is an essential medicinal plant used in regions where western medicines are inaccessible due to their unavailability and high cost. The methanolic extract of Bergenia ciliataroots was separated for phytochemical elements and in-vitro antioxidant activity. The plant extract showed the rich outgrowth of secondary metabolites that play the role for biological activities. The higher antioxidant functioning of the plant is due to the occurrence of reactive elements like phenols and flavonoids. The antioxidant functioning of the plant extract was measured by DPPH free radical scavenging assay. In DPPH free radical scavenging assay the IC50 value of Bergenia ciliata was found to be 11.21μg/mL, while the IC50 value of standard ascorbic acid was found to be 45.93μg/mL

Bacterial endosymbiont inhabiting Leucaena leucocephala leaves and their antioxidant and antidiabetic potential

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Sridevi Chigurupati ◽  
Shantini Vijayabalan ◽  
Kesavanarayanan Krishnan Selvarajan ◽  
Ahmad Alhowail ◽  
Fatema Kauser
Keyword(s):  
Free Radical ◽  
Crude Extract ◽  
Leucaena Leucocephala ◽  
Endophytic Bacteria ◽  
Radical Scavenging ◽  
16S Rrna Gene Sequencing ◽  
Free Radical Scavenging ◽  
Rrna Gene ◽  
Standard Drug

AbstractObjectivesResearch on endosymbionts is emerging globally and is considered as a potential source of bioactive phytochemicals. The present study examines the antioxidant and antidiabetic of the endophytic crude extract isolated from Leucaena leucocephala leaves.MethodsEndophytic bacteria were isolated from the leaves of L. leucocephala and 16S rRNA gene sequencing was used to establish their identity. The in vitro antioxidant effect of endophytic crude extract (LL) was evaluated using 2-diphenyl-1-picrylhydrazyl (DPPH) and 2, 2′-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) free radical scavenging methods. The in vitro antidiabetic properties of LL were evaluated using α-amylase and α-glucosidase enzyme inhibition assay.ResultsThe isolated endophytic bacteria were identified as Cronobacter sakazakii. LL displayed potent free radical scavenging effect against ABTS and DPPH radicals with an inhibitory concentration 50% (IC50) value of 17.49 ± 0.06 and 11.3 ± 0.1 μg/mL respectively. LL exhibited α-amylase and α-glucosidase inhibition with an IC50 value of 23.3 ± 0.08 and 23.4 ± 0.1 μg/mL respectively compared to the standard drug (acarbose). Both glucose loaded normoglycemic rats and STZ induced diabetic rats treated with LL (200 mg/kg) exhibited a considerable reduction in blood glucose levels p<0.01 after 8 h of treatment when compared to normal and diabetic control rats respectively.ConclusionsThus, the study shows that LL has a wellspring of natural source of antioxidants, and antidiabetic agents and phytoconstituents present in endophytes could be the rich source for bioactive compounds.

scholarly journals In Vitro and In Vivo Antioxidant Properties of Taraxacum officinale in Nω-Nitro-l-Arginine Methyl Ester (L-NAME)-Induced Hypertensive Rats

Antioxidants ◽  
2019 ◽  
Vol 8 (8) ◽  
pp. 309
Author(s):  
Olukayode O. Aremu ◽  
Adebola O. Oyedeji ◽  
Opeoluwa O. Oyedeji ◽  
Benedicta N. Nkeh-Chungag ◽  
Constance R. Sewani Rusike
Keyword(s):  
Oxidative Stress ◽  
Free Radical ◽  
Methyl Ester ◽  
Leaf Extract ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Hypertensive Rats ◽  
Total Antioxidant

Oxidative stress has gained attention as one of the fundamental mechanisms responsible for the development of hypertension. The present study investigated in vitro and in vivo antioxidant effects of 70% ethanol-water (v/v) leaf and root extracts of T. officinale (TOL and TOR, respectively). Total phenolic and flavonoid content of plant extracts were assessed using Folin Ciocalteau and aluminium chloride colorimetric methods; while, 2,2-diphenyl-1-picrlhydrazyl (DPPH), 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid (ABTS) and ferric reducing antioxidant power (FRAP) protocols were used to determine the free radical scavenging and total antioxidant capacities (TAC), respectively. The in vivo total antioxidant capacity and malondialdehyde acid (MDA) levels for lipid peroxidation tests were performed on organ homogenate samples from Nω-nitro-L-arginine methyl ester (L-NAME)-induced hypertensive rats treated with leaf extract, TOL (500 mg/kg/day) and TOR (500 mg/kg/day) for 21 days. Results showed that compared to TOR, TOL possessed significantly higher (p < 0.01) polyphenol (4.35 ± 0.15 compared to 1.14 ± 0.01) and flavonoid (23.17 ± 0.14 compared to 3 ± 0.05) content; free radical scavenging activity (EC50 0.37 compared to 1.34 mg/mL) and total antioxidant capacities (82.56% compared to 61.54% ABTS, and 156 ± 5.28 compared to 40 ± 0.31 FRAP) and both extracts showed no toxicity (LD50 > 5000 mg/kg). TOL and TOR significantly (p < 0.01) elevated TAC and reduced MDA levels in targets organs. In conclusion, T. officinale leaf extract possesses significant anti-oxidant effects which conferred significant in vivo antioxidant protection against free radical-mediated oxidative stress in L-NAME-induced hypertensive rats.

Effect of 1-MCP on Bioavailability of Lingwu Long Jujube In Vitro Digestion

2012 ◽  
Vol 554-556 ◽  
pp. 1357-1360
Author(s):  
Zhong Li Jiang ◽  
Ai Li Wang ◽  
Xi Hong Li ◽  
Min Peng Zhu ◽  
Jun Wei Wang
Keyword(s):  
Free Radical ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Total Phenolic ◽  
Radical Scavenging Capacity ◽  
Scavenging Capacity ◽  
Control Samples

The present study investigated the effect of 1-MCP on bioavailability of Lingwu long jujube stored at 0 °C for 60 days. At the end of the storage, compared with the control samples, Lingwu long jujube treated with 1-MCP exhibited higher Vc bioaccessibility, total phenolic content and free radical scavenging capacity, which demonstrated that 1-MCP treatment could provide a better effect on maintaining the bioavailability of Lingwu long jujube.

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