Variation in antioxidant activity and phenolic content in different organs of two Tunisian cultivars of Olea europaea L.

Brahmi, Faten; Mechri, Beligh; Dhibi, Madiha; Hammami, Mohamed

doi:10.1007/s11738-013-1397-4

Cited by 18 publications

(18 citation statements)

References 27 publications

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“…Gallic and p ‐hydroxybenzoic acids were present in the tested WOLE in similar amounts (1.40 and 1.41 mg/g dw, respectively). Phenolic acids identified so far in olive leaves by others covered acids such as 3‐hydroxybenzoic, vanillic, protocatechuic, gallic, syringic, phenylacetic, hydroxyphenylacetic, cinnamic, o ‐, m ‐, and p ‐coumaric, ferulic, caffeic, 5‐caffeoylquinic, chlorogenic and rosmarinic acid . Similar quantitative analysis results for three Tunisian cultivars revealed protocatechuic (1.6 – 2.97 mg/100 g dw), vanillic (0.75 – 0.92 mg/100 g dw), gallic (1.75 – 1.77 mg/100 g dw), and 4‐hydroxybenzoic (0.16 – 0.38 mg/100 g dw) acids .…”

Section: Resultssupporting

confidence: 57%

“…[12 -14] Similar quantitative analysis results for three Tunisian cultivars revealed protocatechuic (1.6 -2.97 mg/100 g dw), vanillic (0.75 -0.92 mg/100 g dw), gallic (1.75 -1.77 mg/100 g dw), and 4-hydroxybenzoic (0.16 -0.38 mg/100 g dw) acids. [14] When compared to this study, the acids content in the examined WOLE was found to be significantly higher.…”

Section: Determination Of Flavonoids and Phenolic Acids And Their Dercontrasting

confidence: 63%

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Identification of Predominant Phytochemical Compounds and Cytotoxic Activity of Wild Olive Leaves (Olea europaea L. ssp. sylvestris) Harvested in South Portugal

Makowska-Wąs

Galanty

Gdula‐Argasińska

et al. 2017

Chemistry & Biodiversity

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This study has been aimed at providing a qualitative and quantitative evaluation of selected phytochemicals such as phenolic acids, flavonoids, oleuropein, fatty acids profile, and volatile oil compounds, present in wild olive leaves harvested in Portugal, as well as at determining their antioxidant and cytotoxic potential against human melanoma HTB-140 and WM793, prostate cancer DU-145 and PC-3, hepatocellular carcinoma Hep G2 cell lines, as well as normal human skin fibroblasts BJ and prostate epithelial cells PNT2. Gallic, protocatechuic, p-hydroxybenzoic, vanillic acids, apigenin 7-O-glucoside, luteolin 7-O-glucoside, and rutin were identified in olive leaves. The amount of oleuropein was equal to 22.64 g/kg dry weight. (E)-Anethole (32.35%), fenchone (11.89%), and (Z)-3-nonen-1-ol (8%) were found to be the main constituents of the oil volatile fraction, whereas palmitic, oleic, and alpha-linolenic acid were determined to be dominating fatty acids. Olive leaves methanol extract was observed to exerted a significant, selective cytotoxic effect on DU-145 and PC-3 cell lines. Except the essential oil composition, evaluated wild olive leaves, with regard to their quantitative and qualitative composition, do not substantially differ from the leaves of other cultivars grown for industrial purposes and they reveal considerable antioxidant and cytotoxic properties. Thus, the wild species may prove to be suitable for use in traditional medicine as cancer chemoprevention.

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Section: Resultssupporting

confidence: 57%

Section: Determination Of Flavonoids and Phenolic Acids And Their Dercontrasting

confidence: 63%

Identification of Predominant Phytochemical Compounds and Cytotoxic Activity of Wild Olive Leaves (Olea europaea L. ssp. sylvestris) Harvested in South Portugal

Makowska-Wąs

Galanty

Gdula‐Argasińska

et al. 2017

Chemistry & Biodiversity

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“…Due to its simplicity and low cost, UV‐vis spectroscopy has been applied to the authentication of plant materials (Brahmi et al ., ). Since the smartphone metabolomics approach also uses visible light, we first tested if the visible light can be used for differentiating our Schisandra sinensis samples with this reported method.…”

Section: Resultsmentioning

confidence: 99%

“…Due to its simplicity and low cost, UV-vis spectroscopy has been applied to the authentication of plant materials (Brahmi et al, 2014).…”

Section: Uv-vis Spectrometry Analysismentioning

confidence: 99%

Application of a Smartphone Metabolomics Platform to the Authentication of Schisandra sinensis

Kwon

Phan

et al. 2016

Phytochemical Analysis

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“…Antioxidant capacity of olive leaf infusions has been positively linked with the phenolics (Abaza et al, 2011;Generalić Mekinić et al, 2014). The main classes of phenolic content present in olives leaves are phenyl ethyl alcohols, simple phenols, flavo- (1) (Lee et al, 2009;Hayes et al, 2011;Brahmi et al, 2014). A number of methods have been proposed for the extraction of phenolic content from olive leaves, including the use of advanced technologies, such as microwave, pressurized liquid extraction and ultra-sonic extraction methods (Rafiee et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Phenolic content and antioxidant capacity of istrian olive leaf infusions

et al. 2017

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Original scientific paper Izvorni znanstveni članak SUMMARY The influence of commonly used steeping times and leaf size on the phenolic content and antioxidant capacity of olive leaf infusions from three Istrian olive cultivars (Buža, Rosinjola and Istarska Bjelica) were studied. Infusions were prepared from whole, rough or finely ground olive leaves immersed in boiled water for 5, 15, or 30 minutes. Extraction efficiency was quantified in terms of the total phenolic, flavonoid, non-flavonoid contents and antioxidant capacity. The phenolic content was primarily affected by infusion time, followed by particle size. The highest total values of phenolic and non-flavonoids were determined in finely ground leaf infusions from cultivars Rosinjola and Buža, while the highest total flavonoids value was detected in Istarska Bjelica after 30 minutes infusion. Particle size provided the highest effect on antioxidant capacity in all cultivars, exhibiting higher values in finely ground leaf infusions. The Rosinjola and I. Bjelica infusions exhibited the highest antioxidant capacity according to ABTS and FRAP assay, respectively. Antioxidant capacity in investigated olive infusions was correlated to TP and TNF, while TF had poor or no effect except in Rosinjola infusions. The results indicate that olive leaves infusion from three Istrian olive cultivars could be a valuable supplement to a daily intake of bioactive compounds.

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Variation in antioxidant activity and phenolic content in different organs of two Tunisian cultivars of Olea europaea L.

Cited by 18 publications

References 27 publications

Identification of Predominant Phytochemical Compounds and Cytotoxic Activity of Wild Olive Leaves (Olea europaea L. ssp. sylvestris) Harvested in South Portugal

Identification of Predominant Phytochemical Compounds and Cytotoxic Activity of Wild Olive Leaves (Olea europaea L. ssp. sylvestris) Harvested in South Portugal

Application of a Smartphone Metabolomics Platform to the Authentication of Schisandra sinensis

Phenolic content and antioxidant capacity of istrian olive leaf infusions

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