Antioxidant properties of some filamentous green algae (Chaetomorpha Genus)

Farasat, Massoumeh; Khavari-Nejad, R. A.; Nabavi, Seyed Mohammad Bagher; Namjooyan, Foroogh

doi:10.1590/s1516-89132013000600005

Cited by 27 publications

(16 citation statements)

References 21 publications

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“…Previous studies have shown the antioxidant activity to be higher in solvents with lower polarity as they dissolve higher molecular weight phenols giving the extract stronger antioxidant effects. 29 The observed negative correlation between the total phenolic/flavonoid content with the antioxidant IC 50 value is consistent with a research by Farasat et al 30 which shows that the higher the phenolic/flavonoid content, the lower the IC 50 value and hence the higher the antioxidant activity per gram of extract. Other studies have confirmed the direct relationship between phenolic content and antioxidant activity 28 and this lends credence that the observed antioxidant activity in the studied plants may be largely due to the phenolic content in the extracts.…”

Section: Discussionsupporting

confidence: 90%

Evaluation of the Antioxidant Activity of Nine Plants Used Medicinally by the Ilkisonko Maasai Community of Kenya

Kimondo

Mutai

Njogu

et al. 2019

FRA

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Objectives: Many plants used in ethnomedicinal interventions have anti-inflammatory, antibacterial, antiviral, anti-aging and anticancer activities attributed to their antioxidant properties. The antioxidant properties may be attributed to high polyphenol content of the plants. The Ilkisonko Maasai are a pastoralist community from Kenya known to ingest certain select plant decoctions for prevention or treatment of targeted illnesses. This study evaluated the antioxidant properties of organic and aqueous extracts of these select plants. Methods: The antioxidant potential was evaluated by 1, 1-diphenyl-2-picrylhydrazyl free radical (DPPH) scavenging method. Total phenolic and flavonoid content were determined using the Folin-Ciocalteu's assay and aluminium chloride colorimetric test, respectively. Results: The organic extracts had significantly higher phenolic and flavonoid content than the aqueous extracts except for Pappea capensis in which the converse was observed. Among the studied plant extracts, Acacia nilotica had the highest phenolic content in the methanol and water extracts (237.26±1.83 mg and 149.66±0.60 mg tannic acid equivalent/g of extract) and the highest antioxidant activity in both the methanol and water extracts with an IC 50 of 54.61µg/mL and 102.96µg/mL, respectively. The standard, ascorbic acid, had an IC 50 of 50.32µg/mL. In both the methanol and water extracts, Acacia reficiens had the highest flavonoid content (130.62±1.78 and 99.80±1.73 mg catechin equivalents/g of extract, respectively). The correlation between the total phenolic content and antioxidant activity was statistically significant (Pearson's r=-0.841). Conclusion: This study found that select plants used by the Ilkisonko Maasai as medicinal plants exhibited high phenolic content and antioxidant activity, giving credence to their ethnomedicinal use.

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Section: Discussionsupporting

confidence: 90%

Evaluation of the Antioxidant Activity of Nine Plants Used Medicinally by the Ilkisonko Maasai Community of Kenya

Kimondo

Mutai

Njogu

et al. 2019

FRA

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“…On contrary, Vimala and Poonghuzhali (2015) reported only 1.38 µg/g of carotenoid content in Ulva reticulata Forsskal. Similar results were observed in Chaetomorpha sp., (6.743±0.1 to 18.17±2.2) by Farasat, Nejad, Seyed, and Namjooyan (2013) and Codium adharens C. Agardh (38.5 µg/g) by Seenivasan et al (2013). The high content of these phytochemicals could exp lain its high radical scavenging activity.…”

Section: Results and Discussion Total Phenol Flavonoi D And Carotenomentioning

confidence: 90%

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Sivaramakrishnan¹,

Swain²,

Saravanan³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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Total phenol, flavonoid, carotenoid and antioxidant activity of four green macroalgae (Halimeda tuna, Halimeda macroloba, Enteromorpha sp. and Acetabularia acetabulum) collected from South Andaman coast were analysed in this study. The results revealed that methanol extract of Enteromorpha sp. showed maximum phenolic, flavonoid and carotenoid content of 5.72±0.13 mg GAE/g, 21.15±1.05 mg RE/g and 47.78±0.46 µg/g respectively. All the analysed macroalgae species exhibited antioxidant activities in dose dependent manner among which Enteromorpha sp. demonstrated greater antioxidant potential. A. acetabulum exhibited greater ABTS (2, 2-azinobiz-3-ethylbenthiazoline-6-sulfonic acid) radical scavenging ability (92%) as evident by its low IC 50 (6.30 mg/ml) in comparison to other species. Based on factor analysis, up to two principal components were chosen to explain variability in 10 independent phytochemicals. The antioxidant potential reveals their potential for future applications in medicine, dietary supplements as well as the natural source of immunostimulants.

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“…These compounds are widely distributed in plants and are known to be potent antioxidants. Therefore, these metabolites may help slugs in the intertidal zone with a high level of oxidative stress induced by desiccation during low tides 30 , 31 . Indeed, genistein showed antimutagenic effects with DNA damage agents at a concentration of 10 μM 32 .…”

Section: Discussionmentioning

confidence: 99%

From Persian Gulf to Indonesia: interrelated phylogeographic distance and chemistry within the genus Peronia (Onchidiidae, Gastropoda, Mollusca)

Maniei

Moghaddam

Crüsemann

et al. 2020

Sci Rep

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the knowledge of relationships between taxa is essential to understand and explain the chemical diversity of the respective groups. Here, twelve individuals of the panpulmonate slug Peronia persiae from two localities in persian Gulf, and one animal of P. verruculata from Bangka island, indonesia, were analyzed in a phylogenetic and chemotaxonomic framework. Based on the ABGD test and haplotype networking using coi gene sequences of Peronia specimens, nine well-supported clades were found. Haplotype network analysis highlighted a considerable distance between the specimens of P. persiae and other clades. Metabolomic analysis of both species using tandem mass spectrometrybased GnpS molecular networking revealed a large chemical diversity within Peronia of different clades and localities. While P. persiae from different localities showed a highly similar metabolome, only few identical chemical features were found across the clades. the main common metabolites in both Peronia species were assigned as polypropionate esters of onchitriols and ilikonapyrones, and osmoprotectant amino acid-betaine compounds. On the other hand, the isoflavonoids genistein and daidzein were exclusively detected in P. persiae, while cholesterol and conjugated chenodeoxycholic acids were only found in P. verruculata. flavonoids, bile acids, and amino acid-betaine compounds were not reported before from onchidiidae, some are even new for panpulmonates. our chemical analyses indicate a close chemotaxonomic relation between phylogeographically distant Peronia species. Peronia Fleming, 1822, a panpulmonate slug genus, is typically distributed in tropical and subtropical regions of the Indo-Pacific ocean 1. The genus Peronia, with ten acknowledged species, has been reported from many localities ranging from the Indo-Pacific to the East Coast of Africa and to Hawaii 2-4. Due to undetected cryptic speciation, species diversity is often underestimated while the widespread distributions attributed to species is often overestimated 5. The integration of molecular and morphological methods has led to numerous discoveries of cryptic species complexes 6. This is also true for the genus Peronia, as was shown by Maniei et al. 3. To date, only three Peronia species are well investigated by molecular and/or morphology data, i.e.

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Antioxidant properties of some filamentous green algae (Chaetomorpha Genus)

Abstract: The antioxidant activity and the contents of total phenolics and flavonoids were quantified in the methanolic extracts of four Chaetomorpha species including C. aerea, C. crassa, C. linum and C. brachygona.

Cited by 27 publications

References 21 publications

Evaluation of the Antioxidant Activity of Nine Plants Used Medicinally by the Ilkisonko Maasai Community of Kenya

Evaluation of the Antioxidant Activity of Nine Plants Used Medicinally by the Ilkisonko Maasai Community of Kenya

Untitled

From Persian Gulf to Indonesia: interrelated phylogeographic distance and chemistry within the genus Peronia (Onchidiidae, Gastropoda, Mollusca)

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