Phytochemical, Antibacterial and Antioxidant Activity of Camellia Sinensis Methanolic and Aqueous Extracts
Journal Title: IOSR Journal of Pharmacy and Biological Sciences (IOSR-JPBS) - Year 2016, Vol 11, Issue 6
Abstract
This study evaluated the antioxidant and antibacterial activity of green tea by using the methanolic and aqueous extract. phytochemical analysis also detected. Free radical scavenging activity was evaluated using 1,1-diphenyl-2-picrylhydrazyl(DPPH) free radical. The methanolic crude extracts of green tea (Camellia sinensis) was the strongest, The EC50 of the methanolic extracts was 2.9 μg/ml and that of ascorbic acid was 2.9 μg/ml. Followed by BHT with value 4.0 μg/ml while The EC50 of the aqueous extracts was 6.5 μg/ml that showed less free radical scavenging activity with the DPPH method. The study reveals that the consumption of green tea has several beneficial effects by virtue of their antioxidant activity.Phytochemical analysis revealed the presence flavonoids, alkaloid, tannins and absence of glycosides, terpens and saponins. Camellia sinensis can inhibit the growth of Gram-positive and Gram-negative bacterial species with moderate potency. The study was carried out on E coli and Staphylococcus aureus, Pseudomonas aeriginosa and Bacillus subtilus and shows that the methanolic extract have better inhibitory effect than aqueous one in a concentration (40 mg/ml) against Escherichia coli and Staphylococcus aureus, the diameter of the inhibition zones was (15and 16 mm) respectively and show a lesser extent to Bacillus subtilus and Pseudomonas aeriginosa.
Authors and Affiliations
Noor S. Latteef
Keywords
Related Articles
- EP ID EP387197
- DOI 10.9790/3008-110606113119
- Views 89
- Downloads 0
The Isolation and Structural Determination of Flavonoids from Justicia Gendarussa
The current study was intended for isolation of bioactive polyphenolic compounds from methanol extract of Justicia Gendarussa and their subsequent characterization. The flavonoid compounds were isolated and identified by...
Qualitative Evaluation of Phytochemicals and Antifungal Activity of “Solanum Xanthocarpum” (Schrad. &Wendl.)
Solanum xanthocarpum is a well-known medicinal herb in Asia, belongs to family Solanaceae. The Solanum Xanthocarpum is reported to have good medicinal values in traditional system of medicines. This present study deals w...
Superoxide radical scavenging activity and reducing capacity assessment of some important medicinal plants of Gujarat, India
Free radicals and other reactive oxygen species are recognized as agents involved in the pathogenesis of many ailments. They are responsible for creating oxidative stress and stress related diseases and disorders. Antiox...
Use of Withania somnifera root powder for production of monosex Nile tilapia, Oreochromis niloticus
Three days old mixed sex juveniles of Nile tilapia (mean weight 0.025 ± 0.009 g; mean length 1.25 ± 0.012 cm) were fed diets containing root powder of Withania somnifera at the concentrations of 0.0, 2.0, 3.0, 3.5, 5.0,...
Bacteriuria in Pregnant and Non Pregnant Women in Benghazi Acomparative Study
Background: Bacteriuria is associated with significant maternal and foetal risks. However, its prevalence is not well known in our community. Objectives: Determine the prevalence and predictors of bacteriuria in women of...