Evaluation to the antioxidant activity of total flavonoids extract from Syzygium jambos seeds and optimization by response surface methodology

Ni, Zheng; Wang, Zhao-Yu; Chen, Feng; Lin, Jiantao

doi:10.5897/ajpp11.691

Cited by 12 publications

(5 citation statements)

References 18 publications

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“…Compounds such as flavonoids, which contain hydroxyl functional groups, are responsible for the antioxidant effects of plants [39]. The present results are in accordance with the previous report of Zheng et al [40] who stated that the flavonoid content in Syzygium jambos extracts was responsible for their antioxidant activity, and a high amount of total flavonoids in the extract suggested that Syzygium jambos possesses high antioxidant activity.…”

Section: Resultssupporting

confidence: 93%

Antioxidant and Antibacterial Activities of Crude Extracts and Essential Oils of Syzygium cumini Leaves

2013

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This research highlights the chemical composition, antioxidant and antibacterial activities of essential oils and various crude extracts (using methanol and methylene chloride) from Syzygium cumini leaves. Essential oils were analyzed by gas chromatography-mass spectrometry (GC-MS).The abundant constituents of the oils were: α-pinene (32.32%), β-pinene (12.44%), trans-caryophyllene (11.19%), 1, 3, 6-octatriene (8.41%), delta-3-carene (5.55%), α-caryophyllene (4.36%), and α-limonene (3.42%).The antioxidant activities of all extracts were examined using two complementary methods, namely diphenylpicrylhydrazyl (DPPH) and ferric reducing power (FRAP). In both methods, the methanol extract exhibited a higher activity than methylene chloride and essential oil extracts. A higher content of both total phenolics and flavonoids were found in the methanolic extract compared with other extracts. Furthermore, the methanol extract had higher antibacterial activity compared to methylene chloride and the essential oil extracts. Due to their antioxidant and antibacterial properties, the leaf extracts from S. cumini may be used as natural preservative ingredients in food and/or pharmaceutical industries.

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Section: Resultssupporting

confidence: 93%

Antioxidant and Antibacterial Activities of Crude Extracts and Essential Oils of Syzygium cumini Leaves

2013

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“…Todaro et al (2009), obtuvo un resultado similar de contenido de antocianinas de 76.44 mg/100g de cascara. Con los resultados obtenidos, utilizando el modelo de superficie de respuesta aplicado, se pueden apreciar cómo el tiempo y la temperatura del proceso influyen significativamente en la capacidad antioxidante de las muestras de extracto de berenjena y es evidente que a medida que el factor tiempo se incrementan, aumenta la capacidad antioxidante, posiblemente debido a que a mayor tiempo de contacto de la matriz con el solvente, mayor extracción de compuestos fenólicos y antocianos, los cuales son responsables de la capacidad antioxidante Zheng et al, 2011).…”

Section: Extracción De Antocianinas a Partir De Cáscara De Berenjenasunclassified

Optimización del Proceso de Extracción de Antocianinas y Evaluación de la Capacidad Antioxidante de Berenjena (Solana melonera L.)

Heras¹,

Alvis²,

Arrázola³

2013

Inf. tecnol.

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El objetivo de esta investigación fue optimizar el proceso de extracción de antocianinas obtenidas de berenjena (Solanum melongena L.) y evaluar su capacidad antioxidante. A extractos de piel y pulpa se le realizaron análisis fisicoquímicos, contenido en fenoles y antocianos. Para la optimización del proceso de extracción de las antocianinas se empleó la metodología de superficie de respuesta con tres factores: concentración de solvente etanol acidificado 1% ácido ortofosfórico (50 a 90% v/v), temperatura extracción (30 a 60°C) y tiempo extracción (4 a 12 horas). La evaluación de la capacidad antioxidante se realizó empleando el método ABTS (6-sulfonato-3-etilbenzotiazolina). El proceso de extracción de antocianinas de la cáscara sigue un modelo cuadrático, mientras que la capacidad antioxidante tuvo un comportamiento lineal. La optimización del modelo mostró que las condiciones de extracción con 50% de solvente acidificado, tiempo de proceso de 4 horas y temperatura de 30 °C presentó los mayores contenidos de antocianinas, alcanzando 62 mg/100g.

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“…Flavonoids are very important constituents of plants because of the scavenging ability conferred by their hydroxyl groups. The flavonoids may contribute directly to antioxidative action (Zheng et al, 2011). In the present study, we demonstrated and optimization the total flavonoids extract from P. villosa possesses considerable amounts of flavonoids by response surface methodology (8.1987 mg/g rutin equivalent of extract after optimization).…”

Section: Resultsmentioning

confidence: 76%

Evaluation to the antifungal activity of total flavonoids extract from Patrinia Villosa Juss and optimization by response surface methodology

Ni¹

2012

Afr. J. Microbiol. Res.

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The purpose of this work was to assess the antifungal activity of total flavonoids extract from Patrinia Villosa Juss. Response surface methodology was employed to optimize the main extraction conditions including extraction time, ethanol concentration and solid-liquid ratio. The effect of total flavonoids extract from P. villosa on Microsporum gypseum, Trichophyton mentagrophytes and Trichophyton rubrun were studied. We found that under the conditions of extraction time 25.51 min, solvent concentration 62.82% and solid-liquid ratio to be 27.39:1, it possesses considerable amounts of flavonoids of 8.1987 mg/g rutin equivalent of extract. The effects of antifungal activity of P. villosa on Trichophyton were more sensitive than Microsporum, but less effective than the positive control ketoconazole. In conclusion, total flavonoids extract from P. villosa possess potent anti-dermatophyte activities. These activities could contribute, at least in part, to the traditionally claimed therapeutic benefits of P. villosa.

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Evaluation to the antioxidant activity of total flavonoids extract from Syzygium jambos seeds and optimization by response surface methodology

Cited by 12 publications

References 18 publications

Antioxidant and Antibacterial Activities of Crude Extracts and Essential Oils of Syzygium cumini Leaves

Antioxidant and Antibacterial Activities of Crude Extracts and Essential Oils of Syzygium cumini Leaves

Optimización del Proceso de Extracción de Antocianinas y Evaluación de la Capacidad Antioxidante de Berenjena (Solana melonera L.)

Evaluation to the antifungal activity of total flavonoids extract from Patrinia Villosa Juss and optimization by response surface methodology

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