Antimicrobial Activity of the Essential Oil and the Fractional Samples Obtained from the Leaves and Seeds of Phyllanthus amarus (Euphorbiaceae)

Ogunlesi, M.; Okiei, W.; Osibote, E. A. S.; Muotoh, C.

doi:10.3923/rjphyto.2009.77.84

Cited by 19 publications

(16 citation statements)

References 23 publications

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“…The result is consistent with that of Ogunlesi et al (2009) who tested the oil extracts of the leaf and seeds of P. amarus for antimicrobial activity. However, the results obtained by them indicated that there was no activity against P. aeruginosa.…”

Section: Discussionsupporting

confidence: 91%

“…It has been reported to inhibit chemically induced liver tumor in rats (Joy and Khuttan, 1988), increase the life span of rats with hepatocellular carcinoma (Rajeshkumar and Kuttan, 2000); exert protective effect on gentamicin and acetaminophen induced nephrotoxic rats (Adeneye and Berebo, 2008). It exhibits gastro-intestinal potentials in human subjects (Odetola and Akojenu, 2000) and possess some antimalarial activity (Tona et al, 1999 Ogunlesi et al (2009) to possess antimicrobial activity.…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, many of the reports of the antimicrobial activities of the plants have either utilized the oil extract alone (Ogunlesi et al, 2009) or used plants collected from Asia (Joy and Khutta, 1988;Tona et al, 1999). There is the need to carry out these tests with plants obtainable from our locality.…”

Section: Introductionmentioning

confidence: 99%

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Antibacterial and antifungal activities of leaf extracts of Phyllanthus amaru Schum and Thonn.

Senjobi¹,

Ettu²,

Otujo³

2017

J. Pharmacognosy Phytother.

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The leaf extracts of Phyllanthus amarus Schum and Thonn. a common Western Nigerian weed, was investigated for phytochemical constituents and antimicrobial activities. Hexane extracts demonstrated the highest extraction of 59% followed by Acetone (57%) and water (48%). Saponins, tannins, alkaloid flavonoids, balsam, anthraquinones and phenols were extracted in an acidic medium. Twelve microorganisms (8 bacterial species and 4 fungal species) were investigated for antimicrobial activities. Generally, the fungal species showed lower minimum inhibitory concentration (MIC) than the bacterial species. The test organisms showed close susceptibility to the leaf extracts when compared with Bacitracin and Erythromycin. Generally, the combination of the leaf extract with either bacitracin or erythromycin alone demonstrated synergistic effect thus showing the potential benefit of combining these standard antibiotics with the leaf extracts of P. amarus for combating infections.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Antibacterial and antifungal activities of leaf extracts of Phyllanthus amaru Schum and Thonn.

Senjobi¹,

Ettu²,

Otujo³

2017

J. Pharmacognosy Phytother.

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“…All the samples of essential oil and fractions demonstrated activity (11-20 mm diameter zone of inhibition) against the microorganisms except P. aeruginosa. 0.05% ciprofloxacin (≥21 mm diameter zone of inhibition) was used as positive control (Ogunlesi et al, 2009). Crude aqueous (hot and cold water) and ethanolic extracts of leaves of P. amarus was investigated for antimicrobial activity against S. typhi.…”

Section: Antibacterial Activitymentioning

confidence: 99%

Phyllanthus amarus: Ethnomedicinal uses, phytochemistry and pharmacology: A review

Patel

Tripathi²,

Sharma

et al. 2011

Journal of Ethnopharmacology

288

183

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“…To identify varieties with better adaptation to any particular location, it is important to compare the yield potential during different growing seasons. Together with morphological and ecological characterization and yield evaluation, antioxidant activity also can be used as a relatively novel index for the selection of superior varieties [8]. Therefore, yield potential, some nutritional aspects, antioxidant properties and postharvest keeping quality of some promising accessions of A. tricolor were studied with the aim of selecting better varieties for commercial cultivation.…”

Section: Introductionmentioning

confidence: 99%

Yield, Keeping Quality, Antioxidant Content and Some Nutritional Aspects of Selected Accessions of AmaranthusTricolor

Malathy¹,

Suraweera²,

Daundasekara³

et al. 2012

IJBBB

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Abstract-The Department of Agriculture (DOA), Sri Lanka has given priorities to identify new leafy vegetable varieties with high yielding capacity and superior in nutritional quality. As a part of this activity, yield potential, nutritional values and antioxidant properties of some promising accessions of Amaranthus tricolor were studied with the aim of selecting better varieties. Experiments were carried out using three new accessions; 'DOA Red', 'Pure green' and 'Diyapalagoda' along with the recommended variety, 'DOA green'. Yield potential was determined through growth and yield parameters. Comparison of leaf protein levels was done by Kjeldahl method. Carotenoid, anthocyanin, chlorophyll levels and the antioxidant activity of the leaves of four accessions was determined by UV-spectrophotometry. Postharvest keeping quality among accessions was compared under three storage condition: cut stem ends dipped in water and stored under ambient conditions, packaged in Low Density Polyethylene (LDPE) film and stored under ambient conditions, packaged in LDPE and stored under 10°C and 90% RH. Shelf life was determined using visual quality. 'DOA Red' contained higher amount of chlorophyll, anthocyanin and the greatest antioxidant activity. 'DOA green' and 'DOA Red' contained relatively higher percentage of crude protein. 'DOA Red' exhibited significantly longer shelf life under all three storage conditions. Polyethylene film packaging, combined with low temperature storage extended the keeping quality by 4.8 -8 fold in A. tricolor. 'Pure green' exhibited higher growth and yield performance and wider adaptability, hence it could be recommended for commercial cultivation.Index Terms-Amaranthus, antioxidant, leafy vegetables, shelf life. I. INTRODUCTIONLeafy vegetables are source of macro-and micronutrients that play a major role in maintaining healthy life. Daily dietary intake of leafy vegetables would help reducing the malnutrition problem since they provide essential minerals, vitamins and amino acids that are absent in the rice-based diet. They are less expensive and easily found in any part of this country compared to other vegetables. Amaranthus tricolor (Amaranth) is one of the popular leafy vegetables in Sri Lanka due to its easiness in culture, fast growth rate, In Sri Lanka, different selections of A. tricolor are cultivated by farmers, but very little information is available on their growth and yield performance, nutritional value and other quality characteristics. This may lead to cultivation of poor quality varieties with low yield [7]. Hence, several accessions of A. tricolor have been collected from farmer fields, purified and subjected to yield and quality evaluation at the Horticultural Crops Research and Development Institute (HORDI). To identify varieties with better adaptation to any particular location, it is important to compare the yield potential during different growing seasons. Together with morphological and ecological characterization and yield evaluation, antioxidant activity also can be used...

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Antimicrobial Activity of the Essential Oil and the Fractional Samples Obtained from the Leaves and Seeds of Phyllanthus amarus (Euphorbiaceae)

Cited by 19 publications

References 23 publications

Antibacterial and antifungal activities of leaf extracts of Phyllanthus amaru Schum and Thonn.

Antibacterial and antifungal activities of leaf extracts of Phyllanthus amaru Schum and Thonn.

Phyllanthus amarus: Ethnomedicinal uses, phytochemistry and pharmacology: A review

Yield, Keeping Quality, Antioxidant Content and Some Nutritional Aspects of Selected Accessions of AmaranthusTricolor

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