Antioxidant activity of some algerian medicinal plants extracts containing phenolic compounds

Djeridane, Amar; Yousfi, Mohamed; Nadjemi, B.; Boutassouna, D.; Stocker, Pierre; Vidal, Nicolás

doi:10.1016/j.foodchem.2005.04.028

Cited by 1,448 publications

(931 citation statements)

References 22 publications

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“…As one of the most important antioxidant plant components, phenolic compounds have been widely investigated in many medicinal plants, fruits, and vegetables (Djeridane et al, 2006). This antioxidant activity is believed to be mainly because of their redox properties (Zheng & Wang, 2001), which play an important role in adsorbing and neutralizing free radicals (Laranjinha, Vieira, Madeira, & Almeida, 1995), quenching singlet and triplet oxygen (Hatano, Shoyama, & Nishioka, 1989) or decomposing peroxides (Das and Pereira, 1990;Rice-Evans et al, 1995).…”

Section: Results and Discussion Total Phenolic Contentmentioning

confidence: 99%

Antioxidant activity and total phenolic compounds of myrtle extracts Actividad antioxidante y contenido de compuestos fenólicos totales en extractos de myrtus

Amensour

Sendra

Abrini

et al. 2010

CyTA - Journal of Food

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The total phenolic content, flavonoid content and antioxidant activity of methanol, ethanol, water and ethyl acetate extracts of the leaves and berries of myrtle (Myrtus communis) were measured. Total phenolic content was assessed by the Folin-Ciocalteau assay, total flavonoid content was assessed by a colorimetric method using rutin as standard flavonoid, whereas antioxidant activity was assessed by measuring the ability of the extracts to scavenge the 2,2 0 -azinobis (3-ethylbenzothiazoline-6-sulphonic acid) diammonium salt (ABTS þ ) radical. The results pointed to the significant antioxidant activities of the methanol and water extracts, the overall strength being in the order of methanol 4 water 4 ethanol 4 ethyl acetate in both, leaf and berry extracts. In all cases, the extracts obtained from leaves showed higher antioxidant activity and higher total phenolic and flavonoid contents than the corresponding extracts obtained from berries. The phenolic content exhibited a strong association (r 2 ¼ 0.9452) with antioxidant activity.Keywords: Myrtus communis; antioxidant activity; phenolic compounds; flavonoid Se determino´el contenido de compuestos feno´licos totales y de flavonoides, ası´como la actividad antioxidante de diferentes extractos (metanol, etanol, acetil e´ter y agua) de hojas y frutos de myrtus (Myrtus communis). El contenido de compuestos feno´licos totales se determino´mediante el me´todo de Folin-Ciocalteau, el contenido de flavonoides mediante un me´todo colorime´trico usando como flavonoide esta´ndar la rutina, mientras que la actividad antioxidante se determino´midiendo la capacidad de los extractos para captar el radical ABTS þ . Los resultados mostraron una significante actividad antioxidante de los extractos metano´licos y acuosos, siendo la intensidad de dicha actividad antioxidante en el siguiente orden: metanol 4 agua 4 etanol 4 acetil e´ter, tanto en el caso de los extractos procedentes de hojas como de frutos. Para todos los extractos, los procedentes de las hojas de myrtus presentaron mayor actividad antioxidante y mayor contenido en polifenoles totales y en flavonoides que los correspondientes extractos de frutos. El contenido total de compuestos feno´licos totales presento´una alta correlacio´n (r 2 ¼ 0,9452) con la actividad antioxidante.

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Section: Results and Discussion Total Phenolic Contentmentioning

confidence: 99%

Antioxidant activity and total phenolic compounds of myrtle extracts Actividad antioxidante y contenido de compuestos fenólicos totales en extractos de myrtus

Amensour

Sendra

Abrini

et al. 2010

CyTA - Journal of Food

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“…The amount of total flavonoids was determined according to the method described by Djeridane et al (2006). One mL of extract (0.5 mg/mL) was mixed with 1 mL aluminum chloride 2 %.…”

Section: Total Flavonoidsmentioning

confidence: 99%

Allelopathic momilactones A and B are implied in rice drought and salinity tolerance, not weed resistance

Xuan

Minh

Anh

et al. 2016

Agron. Sustain. Dev.

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Momilactones A and B are allopathic phytoalexins that are involved in weed resistance of rice. There is little knowledge on the roles of momilactones A and B on drought and salinity tolerance. Here we analyzed the contents of momilactones A and B in 30 rice cultivars of various origins including hybrid, foreign, sticky, local, upland sticky, and upland rice of the two subtypes Indica and Japonica. Momilactone contents were compared with salinity tolerance, drought tolerance, weed resistance, total flavonoids, total phenols, and antioxidant capacity. Results show that, contrary to the current knowledge, momilactones A and B have very low correlation with weed resistance, with r coefficients of 0.001 and 0.09, respectively. Correlation was higher with drought tolerance, of 0.65 for momilactones A and 0.27 for momilactones B. Overall we conclude that the development of bioactive reagents derived from momilactones A and B is more potent to reduce salinity and drought stresses than weed tolerance in rice.

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“…The total phenol content of the samples was determined using the Folin-Ciocalteau reagent (Djeridane et al, 2006). Briefly, 100 μL of extracts in methanol (1 g/L) were mixed with 1.0 mL of distilled water and 0.5 mL of Folin-Ciocaleu's (1:10 v/v) reagent.…”

Section: Total Phenol Contentmentioning

confidence: 99%

Contents of constituents and antioxidant activity of seed and pulp extracts of Annona coriacea and Annona sylvatica

et al. 2015

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The antioxidant potential of fruit pulp and seeds of extracts of the Annona coriacea, and A. sylvatica (Annonaceae) were investigated, as well contents total phenolics, flavonoids, condensed tannins and ascorbic acid. Was used to determine the antioxidant activity the 1,1-diphenyl-1-picrylhydrazyl free radical (DPPH), β-carotene bleaching and ABTS radical cation method. The total phenol, total flavonoid, condensed tannin, and ascorbic acid contents were measured spectrophotometrically. In this study, the pulp and seeds of the fruits were extracted using methanol/water (8:2) for maceration. The seed extracts of A. coriacea demonstrated a moderate antioxidant effect with free radical scavenging activity of 31.53%, by the DPPH test, 51.59% by the β-carotene bleaching test and 159.50 µM trolx/g of extract in the ABTS assay. We found that the hydromethanolic seed extract of A. coriacea had high total phenol (147.08 ± 4.20 mg of GAE/g of extract) and flavonoid (131.18 ± 2.31 mg of QE/g of extract) content. This indicated that the antioxidant activity of the extracts was related to the contents of these constituents.Keywords: Annona, antioxidant activity, phytochemistry. Conteúdo

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Antioxidant activity of some algerian medicinal plants extracts containing phenolic compounds

Cited by 1,448 publications

References 22 publications

Antioxidant activity and total phenolic compounds of myrtle extracts Actividad antioxidante y contenido de compuestos fenólicos totales en extractos de myrtus

Antioxidant activity and total phenolic compounds of myrtle extracts Actividad antioxidante y contenido de compuestos fenólicos totales en extractos de myrtus

Allelopathic momilactones A and B are implied in rice drought and salinity tolerance, not weed resistance

Contents of constituents and antioxidant activity of seed and pulp extracts of Annona coriacea and Annona sylvatica

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