Abstract
Background: Plant-derived phytochemicals consisting of phenols and flavonoids possess antioxidant properties, eventually rendering a lucrative tool to scavenge reactive oxygen species. This study was carried out to evaluate in vitro antioxidant and cytotoxic potential of methanolic extract and petroleum ether extracts of Smilax zeylanica L. stems.
Methods: Phytochemical screening was done following standard procedures. Antioxidant activity was tested using several in vitro assays, viz., 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay, NO assay, H2O2 assay, CUPRAC assay, FRAP assay and total antioxidant capacity assay. Total phenol and flavonoid contents were determined by colorimetric method. Brine shrimp lethality and MTT cell viability assays were used for cytotoxic potential.
Results: Preliminary phytochemical study revealed the presence of flavonoids and glycosides in both extracts. Methanolic extract was found to possess stronger antioxidant potential than petroleum ether extracts in all assays. The IC50 value of methanolic extract was 29.14±0.39 μg/mL, 120.30±3.32 μg/mL and 78.41±5.53 μg/mL in DPPH assay, NO assay and H2O2 assay, respectively. Likewise, total phenol [56.78 mg/g gallic acid (GAE)] and flovonoid [125.69 mg/g quercetin equivalents (QE)] were higher in methanolic extract. In cytotoxicity assays, petroleum ether extract showed stronger activity in both brine shrimp lethality (LC50 2.85±0.13 μg/mL) and MTT cell viability assay (IC50 15.49±1.18 μg/mL).
Conclusions: These findings demonstrate that methanolic extracts could be considered as potential sources of natural antioxidant, whereas petroleum ether extracts could be explored for promising anticancer molecules.
Acknowledgments
The authors would like to thank native English speaker, Mr. Jason Chau, School of Pharmacy, University of Waterloo, Ontario, Canada, for critically revising the English of the manuscript, and Mohammad Ehsanul Haque Mazumder, Discipline of Biomedical Science, School of Medical Sciences, The University of Sydney, Australia, for his valuable information, suggestions and critical reading of the manuscript.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
Competing interests: The funding organization(s) played no role in the study design; in the collection, analysis, and interpretation of data; in the writing of the report; or in the decision to submit the report for publication.
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©2015 by De Gruyter
Articles in the same Issue
- Frontmatter
- Review
- Implications of sodium hydrogen exchangers in various brain diseases
- Mini Review
- A perspective on role of calcium and vitamin D in cardiovascular outcomes and lipid profile
- Cardiovascular Function
- Space weather and human deaths distribution: 25 years’ observation (Lithuania, 1989–2013)
- Cardiovascular-Pulmonary Interactions
- Comparative study of the efficacy and safety of theophylline and doxofylline in patients with bronchial asthma and chronic obstructive pulmonary disease
- Oxidative Stress
- Antioxidant and cytotoxic activity of stems of Smilax zeylanica in vitro
- Hepatoprotective and antioxidant activity of hydromethanolic extract of Daniella oliveri leaves in carbon tetrachloride-induced hepatotoxicity in rats
- Inhibition of metalloproteinase and proteasome activities in colon cancer cells by citrus peel extracts
- Inflammation
- Analgesic and anti-inflammatory activity of Tectona grandis Linn. stem extract
- Cyperus rotundus L. prevents non-steroidal anti-inflammatory drug-induced gastric mucosal damage by inhibiting oxidative stress
- Evaluation of the analgesic, anti-inflammatory, anti-oxidant, phytochemical and toxicological properties of the methanolic leaf extract of commercially processed Moringa oleifera in some laboratory animals
- Jobelyn® exhibited anti-inflammatory, antioxidant, and membrane-stabilizing activities in experimental models
- Phytotherapy
- Effect of Saraca asoca (Asoka) on estradiol-induced keratinizing metaplasia in rat uterus
- Others
- The effect of nicotine and cotinine on human gingival fibroblasts attachment to root surfaces
- Congress Abstracts
- Israel Society for Auditory Research (ISAR) 2015 Annual Scientific Conference
Articles in the same Issue
- Frontmatter
- Review
- Implications of sodium hydrogen exchangers in various brain diseases
- Mini Review
- A perspective on role of calcium and vitamin D in cardiovascular outcomes and lipid profile
- Cardiovascular Function
- Space weather and human deaths distribution: 25 years’ observation (Lithuania, 1989–2013)
- Cardiovascular-Pulmonary Interactions
- Comparative study of the efficacy and safety of theophylline and doxofylline in patients with bronchial asthma and chronic obstructive pulmonary disease
- Oxidative Stress
- Antioxidant and cytotoxic activity of stems of Smilax zeylanica in vitro
- Hepatoprotective and antioxidant activity of hydromethanolic extract of Daniella oliveri leaves in carbon tetrachloride-induced hepatotoxicity in rats
- Inhibition of metalloproteinase and proteasome activities in colon cancer cells by citrus peel extracts
- Inflammation
- Analgesic and anti-inflammatory activity of Tectona grandis Linn. stem extract
- Cyperus rotundus L. prevents non-steroidal anti-inflammatory drug-induced gastric mucosal damage by inhibiting oxidative stress
- Evaluation of the analgesic, anti-inflammatory, anti-oxidant, phytochemical and toxicological properties of the methanolic leaf extract of commercially processed Moringa oleifera in some laboratory animals
- Jobelyn® exhibited anti-inflammatory, antioxidant, and membrane-stabilizing activities in experimental models
- Phytotherapy
- Effect of Saraca asoca (Asoka) on estradiol-induced keratinizing metaplasia in rat uterus
- Others
- The effect of nicotine and cotinine on human gingival fibroblasts attachment to root surfaces
- Congress Abstracts
- Israel Society for Auditory Research (ISAR) 2015 Annual Scientific Conference