Comparative evaluation of the antioxidant potential of some Iranian medicinal plants

Bouayed, Jaouad; Piri, Khosro; Rammal, Hassan; Dıcko, Amadou; Desor, Frédéric; Younos, C.; Soulimani, Rachid

doi:10.1016/j.foodchem.2006.11.069

Cited by 71 publications

(43 citation statements)

References 27 publications

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“…Many researchers have studied the content of phenolic metabolites in medicinal plants, and the results of these studies have confirmed the hypothesis that these compounds contribute significantly to the antioxidant activity (BOUAYED et al, 2007;KATALINIC et al, 2006, OBOH, 2006 and nutritional properties (IWALEWA et al, 2005;ODUKOYA et al, 2007) and the characteristics of the environment (FREITAS et al, 2004;PEIXOTO SOBRINHO et al, 2008;YARIWAKE et al, 2005). Antioxidant enzymes (produced by the body) and antioxidant nutrients (found in foods) can scavenge/deactivate reactive free radicals, transforming them to harmless substances (CHU et al, 2002).…”

Section: Introductionmentioning

confidence: 82%

The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd

et al. 2015

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ABSTRACT. The purpose of this study was to evaluate the influence of planting and harvesting times on the polyphenol content and antioxidant capacity of Talinum triangulare cultivated during two different seasons (winter or summer) and harvested 30 or 60 days after seedling establishment. Polyphenol content was quantified with the Folin-Ciocalteu method, and antioxidant activity was quantified with free-radical DPPH (1,1-diphenyl-2-picrilhidrazina). The highest levels of polyphenols were obtained from winter planting and from harvesting at 30 days. Antioxidant activity differed significantly in response to variation in planting and harvesting times, reaching 56.97% in extracts of plants produced in the winter and harvested at 30 days after planting. The times of planting and harvesting markedly influenced the content of polyphenols, and thus the antioxidant activity, of T. triangulare.Keywords: portulacaceae, waterleaf, DPPH, polyphenol.Efeito da época de plantio e colheita sobre o teor de fenólicos totais e atividade antioxidante de Talinum triangulare (Jacq.) Willd RESUMO. O objetivo deste estudo foi avaliar a influência das épocas de plantio e colheita no teor de polifenóis e capacidade antioxidante de Talinum triangulare cultivadas em duas estações do ano (inverno e verão) e coletadas 30 e 60 dias após plantio. A quantificação dos polifenóis foi realizada pelo método de Folin-Ciocalteu e a atividade antioxidante por DPPH. Níveis elevados de polifenóis foram obtidos na semeadura de inverno e colheita em 30 dias. A atividade antioxidante variou significativamente entre as épocas de plantio e colheita de plantas, chegando a 56,97% nos extratos das plantas produzidas no inverno e colhidas aos 30 dias após a semeadura. Os dados mostraram que a época de plantio e de colheita influenciou o teor de polifenóis e, por conseguinte, a atividade antioxidante de T. triangulare.

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Section: Introductionmentioning

confidence: 82%

The influence of planting and harvesting times on the total phenolic content and antioxidant activity of Talinum triangulare (Jacq.) Willd

et al. 2015

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“…Phytochemicals from natural products possess potent antioxidant activity that are capable of prevention of the onset and/or progression of many human diseases by counteracting reactive oxygen species (ROS) (Palasuwan et al, 2005;Cai et al, 2006;Bouayed et al, 2007;Liu et al, 2007). It has been reported that the Catharanthus roseus possesses anticancer alkaloids Vinblastine and Vincristine, anti-diabetic property, antioxidant property, Anti helminthic property, Anti-ulcer property, Hypertensive property and Anti-diarrheal property (Monika Sain and Vandana Sharma, 2013).…”

Section: Resultsmentioning

confidence: 99%

Hypoglycemic Efficacy of Catharanthus roseus and Opuntia ficusindica in Mice Diabetic Model

Jaya¹,

Kumar²

2017

Int.J.Curr.Microbiol.App.Sci

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“…Phytochemicals from natural products possess potent antioxidant activity that are capable of prevention of the onset and/or progression of many human diseases by counteracting reactive oxygen species (ROS) (Palasuwan et al, 2005;Cai et al, 2006;Bouayed et al, 2007;Liu et al, 2007). An alcoholic extract of O. sanctum was found to reduce significantly the blood sugar in normal mice and in STZ induced diabetes mice.…”

Section: Resultsmentioning

confidence: 99%

Diabetes Mellitus and its Control by Ocimum sanctum Extract in Mice Diabetic Model

Kumar¹,

Kumar²

2016

Int.J.Curr.Microbiol.App.Sci

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Comparative evaluation of the antioxidant potential of some Iranian medicinal plants

Cited by 71 publications

References 27 publications

<b>The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i>Talinum triangulare</i> (Jacq.) Willd

<b>The influence of planting and harvesting times on the total phenolic content and antioxidant activity of <i>Talinum triangulare</i> (Jacq.) Willd

Hypoglycemic Efficacy of Catharanthus roseus and Opuntia ficusindica in Mice Diabetic Model

Diabetes Mellitus and its Control by Ocimum sanctum Extract in Mice Diabetic Model

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