Comparison of antioxidant activity and phenolic content of three lichen species

Odabaşoğlu, Fehmi; Aslan, Ali; Çakır, Ahmet; Süleyman, Halis; Karagöz, Yalçın; Halici, Mesut; Bayır, Yasin

doi:10.1002/ptr.1488

Cited by 147 publications

(87 citation statements)

References 17 publications

(16 reference statements)

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“…In most lichens, phenols including depsides, depsidones and dibenzofurans are, important components with antioxidant activity [7,9,27]. In this study, we found that the content of phenol in the methanol extract of different species is very different.…”

Section: Discussionmentioning

confidence: 73%

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Antioxidant and antimicrobial properties of the lichens Anaptychya ciliaris, Nephroma parile, Ochrolechia tartarea and Parmelia centrifuga

Ranković

Kosanić

et al. 2010

Open Life Sciences

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Abstract:The aim of this study was to characterize the antioxidant and antimicrobial activity of the methanol extracts of: Anaptychya ciliaris, Nephroma parile, Ochrolechia tartarea and Parmelia centrifuga. The methanol extract of the P. centrifuga showed a strong antioxidant activity, in comparison to the extracts from A. ciliaris, O. tartarea and N. parile which were relatively weaker. Furthermore, the methanol extract of the lichen P. centrifuga was shown to contain the highest total phenol content (54.19 mg/g of the dry extract). Interestingly, a statistically significant positive relationship between the antioxidant activity and the total phenol content was observed. The minimum inhibitory concentration (MIC) against six bacterial and eleven fungi was established for the methanol extracts from each of species of lichens. The methanol extracts of the lichens P. centrifuga and O. tartarea showed the strongest both antibacterial and antifungal activity. Taken together, the results from this study suggest that the lichens P. centrifuga and O. tartarea may be used as a natural source of antioxidants in addition to providing certain antimicrobial features.

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Section: Discussionmentioning

confidence: 73%

“…Consequently, an alternative solution is to use naturally occurring antioxidants as additives in food as well as traditional medicines [3][4][5]. In accordance with identifying a suitable natural antioxidant, the antioxidant activity of many organisms has been demonstrated which includes some species of lichens [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and antimicrobial properties of the lichens Anaptychya ciliaris, Nephroma parile, Ochrolechia tartarea and Parmelia centrifuga

Ranković

Kosanić

et al. 2010

Open Life Sciences

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“…Also, there is a good correlation between flavonoid compounds of the tested extracts and free radical scavenging activity, reducing power and superoxide anion radical scavenging (r=0.92, r=0.81 and r=0.74). Previous researches also showed a high correlations between antioxidative activities and phenolic content (Odabasoglu et al 2004;Hodzic et al 2009). The strong relationships between total phenolic contents of tested extracts and the antioxidative activities suggest that phenolics might be the major antioxidant compounds in studied extracts.…”

Section: Correlations Between Total Phenolic Content and Antioxidativmentioning

confidence: 87%

Antioxidant properties of some lichen species

2010

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Antioxidant activity of the acetone, methanol and aqueous extracts of the lichens Cladonia furcata, Hypogymnia physodes, Lasallia pustulata, Parmelia caperata and Parmelia sulcata has been screened in vitro by using different methods (DPPH radical scavenging, superoxide anion radical scavenging, reducing power, determination of total phenolic compounds and determination of total flavonoid content). Of the lichens tested, Lasallia pustulata had powerful antioxidant activities. Acetone, methanol and aqueous extracts of this lichen showed 90.93, 69.87 and 65.08% DPPH radical scavenging activities. Moreover, the tested extracts had effective reducing power and superoxide anion radical scavenging. Those various antioxidant activities were compared to standard antioxidants such as ascorbic acid, butylated hydroxyanisole (BHA) and α-tocopherol. In addition, total content of phenol and flavonoid in extracts were determined as pyrocatechol equivalent, and as rutin equivalent, respectively. The strong relationships between total phenolic and flavonoid contents and the antioxidative activities of tested extracts suggest that these compounds play important role in antioxidant activity. The present stady shows that tested lichen species demonstrated a strong antioxidant activity and can be considered as good sources of natural antioxidants.

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“…Numerous researches reported a significant correlation between antioxidative activities of lichens and phenolic content (Behera et al 2009;Ranković et al 2012). However, some authors believe that the antioxidant activity of extracts may not necessarily correlate with the content of polyphenolics (Odabasoglu et al 2004), suggesting that the antioxidant activity of different lichens may also depend on other, non-phenol components. Gulcin et al (2002) investigated aqueous extract of C. islandica which showed effective reducing power, superoxide anion radical scavenging and free radical scavenging activities.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of in vitro antioxidant, antimicrobial, genotoxic and anticancer activities of lichen Cetraria islandica

et al. 2014

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In this study, the antioxidant, antimicrobial, genotoxic and anticancer activities of Cetraria islandica methanol extract were determined by using free radical and superoxide anion scavenging activity, reducing power, determination of total phenolic compounds and flavonoid contents, broth microdilution minimal inhibitory concentration against five bacterial and five fungal species, cytokinesis block micronucleus (MN) assay on peripheral blood lymphocytes (PBLs) and the microculture tetrazolium test on FemX (human melanoma) and LS174 (human colon carcinoma) cell lines. As a result of the study, we found that C. islandica methanol extract exhibited moderate free-radical-scavenging activity with IC 50 values 678.38 lg/ml. Moreover, the tested extract had effective reducing power and superoxide anion radical scavenging. The minimal inhibitory concentration values against the tested microorganisms ranged from 0.312 to 5 mg/ml. The extract increased MN frequency in a dose dependent manner, but it was significant in higher tested concentrations (50, 100 and 200 lg/ml). No significant differences were observed between NDI values in all treatments and untreated PBLs. In addition, the tested extract had strong anticancer activity towards both cell lines with IC 50 values of 22.68 and 33.74 lg/ml. It can be concluded that the tested extract exhibited a certain level of in vitro antioxidant, antimicrobial, genotoxic and anticancer activities.

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Comparison of antioxidant activity and phenolic content of three lichen species

Cited by 147 publications

References 17 publications

Antioxidant and antimicrobial properties of the lichens Anaptychya ciliaris, Nephroma parile, Ochrolechia tartarea and Parmelia centrifuga

Antioxidant and antimicrobial properties of the lichens Anaptychya ciliaris, Nephroma parile, Ochrolechia tartarea and Parmelia centrifuga

Antioxidant properties of some lichen species

Evaluation of in vitro antioxidant, antimicrobial, genotoxic and anticancer activities of lichen Cetraria islandica

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