Unravelling the antioxidant potential and the phenolic composition of different anatomical organs of the marine halophyte Limonium algarvense

Rodrigues, Maria João; Soszynski, Ambre; Martins, Alice; Rauter, Amélia P.; Neng, Nuno R.; Nogueira, J.M.F.; Varela, João; Barreira, Luísa; Custódio, Luísa

doi:10.1016/j.indcrop.2015.08.061

Cited by 72 publications

(94 citation statements)

References 58 publications

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“…On the other hand, the most abundant compounds in L. quesadense extracts were 15 and 16 (gallo(epi)catechin-O-gallate monomer and dimer), followed by myricetin glycosides. Epigallocatechin gallate has been previously reported as the potential mainly responsible for the bioactive properties of L. brasiliense and L. algarvense [11,14].…”

Section: Phytochemical Characterizationmentioning

confidence: 99%

“…Some species are cultivated as ornamental plants, whereas others have important medicinal properties [5,6]. Research on species of this genus has revealed important bioactivity concerning the free radical scavenging [7,8], antioxidant [5,[9][10][11], anti-inflammatory [10], antibacterial [12], antimicrobial [9], and antiviral [13] properties. e main phenolics identified as responsible for these activities were gallic acid, epigallocatechin gallate, and myricetin and isorhamnetin flavonoids [7,8,10,11,14].…”

Section: Introductionmentioning

confidence: 99%

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Phenolic Profile, Antioxidant Activity, and Enzyme Inhibitory Properties ofLimonium delicatulum(Girard) Kuntze andLimonium quesadenseErben

Ruiz-Riaguas

Zengin

Sinan

et al. 2020

Journal of Chemistry

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In this work, we report the phytochemical composition and bioactive potential of methanolic and aqueous extracts of leaves from Limonium delicatulum (Girard) Kuntze and Limonium quesadense Erben. The characterization and quantitation of individual phytochemicals were performed with liquid chromatography with diode array and electrospray-tandem mass spectrometry detection. Myricetin glycosides were abundant in L. delicatulum, whereas L. quesadense was rich in gallo(epi)catechin-O-gallate. Total phenolics, flavonols, and flavonoids were assayed with conventional methods. Antioxidant and radical scavenging assays (phosphomolybdenum, DPPH, ABTS, CUPRAC, FRAP, and metal chelating activity), as well as enzyme inhibitory assays (acetylcholinesterase, butyrylcholinesterase, tyrosinase, amylase, glucosidase, and lipase), were performed to evaluate the potential bioactivity. The methanolic extracts of both species presented higher phenolic content and bioactivity than the aqueous extracts. Overall, L. quesadense extracts exhibited the most potent activity for most assays, representing a potential source of bioactive compounds for the pharmaceutical and food industries.

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Section: Phytochemical Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phenolic Profile, Antioxidant Activity, and Enzyme Inhibitory Properties ofLimonium delicatulum(Girard) Kuntze andLimonium quesadenseErben

Ruiz-Riaguas

Zengin

Sinan

et al. 2020

Journal of Chemistry

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“…2.4.1. Total polyphenols (TPC), flavonoids (TFC) and condensed tannin (CTC) content TPC was determined by the Folin-Ciocalteau assay according to Velioglu et al (1998), adapted to 96-well plates (described in Rodrigues et al, 2015). Absorbance was measured at 725 nm using gallic acid as standard and results were expressed as milligrams of gallic acid equivalents per grams of biomass dried weight (mg GAE/g dw).…”

Section: Phytochemical Composition Of the Extractsmentioning

confidence: 99%

“…2.5.1. Radical scavenging activities (RSA) on DPPH, nitric oxide (NO) and ABTS radicals The capacity to scavenge the free radicals DPPH, NO and ABTS was evaluated according to Brand-Williams et al (1995), Baliga et al (2003) and Re et al (1999), respectively, adapted to 96-well plates as described by Rodrigues et al (2015). BHT (1 mg/mL) was used as positive control.…”

Section: Antioxidant Activitymentioning

confidence: 99%

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Profiling of antioxidant potential and phytoconstituents of Plantago coronopus

et al. 2016

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The halophyte species Plantago coronopus has several described ethnomedicinal uses, but few reported biological activities. This work carried out for the first time a comparative analysis of P. coronopus organs in terms of phenolic composition and antioxidant activity of organic and water extracts from roots, leaves and flowers. The leaves contents in selected nutrients, namely amino acids and minerals, are also described. Roots (ethyl acetate and methanol extracts) had the highest radical scavenging activity (RSA) towards 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals, while leaves (hexane extract) had higher RSA on nitric oxide radical and iron chelating ability. High performance liquid chromatography (HPLC) analysis identified eighteen phenolics from which salicylic acid and epicatechin are here firstly described in Plantago species. Leaves had mineral levels similar to those of most vegetables, proving to be a good source for elements like calcium, sodium, iron and magnesium, and also for several of the essential amino acids justifying it use as food. Our results, especially those regarding the phenolics composition, can explain the main traditional uses given to this plantain and, altogether, emphasize the potential of P. coronopus as a source of bioactive molecules particularly useful for the prevention of oxidative stress-related diseases.

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