The study of the aqueous extract of leaves of Pancratium Foetidum Pom as: Characterization of polyphenols, flavonoids, antioxidant activities and Ecofriendly corrosion inhibitor

Bendaif, H.; Melhaoui, Ahmed; Bouyanzer, A.; Hammouti, B.; Ouadi, Y. El

doi:10.26872/jmes.2017.8.12.473

Cited by 5 publications

(4 citation statements)

References 17 publications

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“…HPLC analysis confirmed the presence of extensive number of phenolic compounds with reasonable amounts. Recently, many studies have examined the cytotoxicity, antioxidant and antihyperglycemic activities of phenolic compounds (25)(26)(27). Chromatographic examination of the 70% methanol extract of P. timorense bark resulted in the isolation and identification of seven compounds for the first time from the bark.…”

Section: Discussionmentioning

confidence: 99%

Phytoconstituents and bioactivities of the Bark of Pleiogynium timorense (DC.) Leenh (Anacardiaceae)

Raoof

Said

Younes

et al. 2020

J Herbmed Pharmacol

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Introduction: The purpose of this study was to evaluate the phytoconstituents and various bioactivities of Pleiogynium timorense bark as a step towards the production of a new drug from natural origin to overcome the complications of the synthetic drugs. Methods: The phenolic compounds were isolated and identified by chromatographic and spectroscopic methods as ultraviolet (UV) and nuclear magnetic resonance (NMR) spectra. The isolated compounds, as well as 70% methanol extract of P. timorense bark were tested for cytotoxicity against human colon carcinoma (HCT 116), human hepatocellular liver carcinoma (HepG2), normal melanocytes (HFB-4) and human breast carcinoma (MCF-7) cell lines. In addition, the methanol extract was evaluated for renal protective, hepatoprotective, antioxidant and antihyperglycaemic activities. Results: Seven phenolic compounds were isolated from the bark of the plant for the first time which were identified as; pyrogallol, catechin, gallic acid, kaempferol, quercetin, rutin and quercetrin. Moreover, the methanol extract of the bark showed a promising cytotoxic effect against HepG2 cell line more than that of the isolated compounds comparing with doxorubicin (a positive control), where catechin and gallic acid showed moderate effects. In addition, the methanol extract showed potent antioxidant, hepatorenal protective and antihyperglycaemic effects. Conclusion: Pleiogynium timorense extract possesses a potent cytotoxic effect against HepG2 cell line and significant antioxidant, hepatorenal protective and antihyperglycaemic effects.

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Section: Discussionmentioning

confidence: 99%

Phytoconstituents and bioactivities of the Bark of Pleiogynium timorense (DC.) Leenh (Anacardiaceae)

Raoof

Said

Younes

et al. 2020

J Herbmed Pharmacol

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“…Analisis menggunakan FTIR dilakukan untuk mendukung fakta bahwa penghambatan korosi baja dalam media asam sebagian disebabkan oleh adsorpsi molekul inhibitor pada permukaan baja (Bendaif et al, 2016). baja sehingga dapat mengurangi laju korosi baja (Anees et al, 2018;Emriadi etal., 2016;Zakaria et al, 2016;Patricia et al, 2018;Jokar et al, 2016).…”

Section: Analisis Fourier Transform Infra Red (Ftir)unclassified

Efek Sinergetik Ekstrak Daun Jambu Bol (Syzygium malaccense) dan Iodida terhadap Korosi Baja dalam Larutan Asam

Untari

2021

chempublish

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Research on the synergistic effect of jambu bol leaves extract and iodide on the corrosion of mild steel in acid solution has been carried out by weight loss, potentiodynamic polarization measurements, Fourier transform infrared (FTIR), scanning electron microscopy (SEM) analysis, and X-Ray Diffraction (XRD) characterization. The inhibition efficiency increased with increasing iodide concentration and temperature. The highest inhibition efficiency was 92.05% in inhibitor of 5 g / L jambu bol leaves extract with the addition of 0.08 g / L of iodide. Adsorption of jambu bol leaves extract and iodide following the Langmuir isotherm adsorption. Potentiodynamic polarization measurements show the combination of jambu bol leaves inhibitor and iodide was a type of mixture inhibitor in hydrochloric acid solution. The synergistic effect of guava bol extract and potassium iodide was studied using thermodynamic and kinetic parameters. Keywords: Jambu bol leaves, corrosion inhibitor, weight loss, synergistic effect, Langmuir isotherm

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“…The antioxidant activity and the inhibiting property increases with increasing of the phenolic compounds content in the extract. Samples that have a high content of phenolic substances, usually have good results for antioxidant activity [77,78]. All the plants extracts examined have a protective power and act as mixed type inhibitors for carbon steel corrosion in alkaline solution containing chlorides.…”

Section: Determination Of the Anticorrosion And Antioxidant Propertiementioning

confidence: 99%

Relationship between the inhibition and antioxidant properties of the plant and biomass wastes extracts – A Review

Vorobyova¹,

Скіба²,

Shakun³

et al. 2019

Int. J. Corros. Scale Inhib.

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Corrosion inhibitors are the only most widely applied method for corrosion protection of metallic materials and are of particular importance in industry. Nowadays, the synthesis of corrosion inhibitors using traditional multistep reactions is highly restricted because of the increasing demands of "green chemistry". Plant materials and biomass wastes are ideal green candidatures to replace traditional toxic corrosion inhibitors. Literature survey reveals that different extracts of the plant and agro-food wastes contain naturally phytochemical compounds which have antioxidant properties have been effectively employing as sustainable inhibitors for the corrosion of different metals and alloys. Nevertheless, despite the numerous research papers, the reviews in which the correlation between the antioxidant/free radical scavenging activity of the extracts and their inhibition action is explained are not represented in the literature. This paper provides a brief overview of current knowledge in what kind of methods are used to estimate the antioxidant content, which classes of compounds provide higher antiradical activity and poses questions that we need to answer in order to use parameter of the antioxidant activity as a predictive index for performance evaluation of the plants/biomass wastes extracts as corrosion inhibitors. The conclusion is that no single mechanism of antioxidant actions and anticorrosive protection is operative in plant/wastes extracts. The high inhibitory efficiency is predicated on a number of complementary processes working holistically. By developing the theoretical basis and mechanism of action between the anticorrosive and antioxidant properties of plant extracts, it is possible to create predictive tools for selecting plant extract and further obtaining anti-corrosion protection based on it.

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The study of the aqueous extract of leaves of Pancratium Foetidum Pom as: Characterization of polyphenols, flavonoids, antioxidant activities and Ecofriendly corrosion inhibitor

Cited by 5 publications

References 17 publications

Phytoconstituents and bioactivities of the Bark of Pleiogynium timorense (DC.) Leenh (Anacardiaceae)

Phytoconstituents and bioactivities of the Bark of Pleiogynium timorense (DC.) Leenh (Anacardiaceae)

Efek Sinergetik Ekstrak Daun Jambu Bol (Syzygium malaccense) dan Iodida terhadap Korosi Baja dalam Larutan Asam

Relationship between the inhibition and antioxidant properties of the plant and biomass wastes extracts – A Review

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