Lichens as possible sources of antioxidants.
Pak J Pharm Sci. 2011 Apr; 24(2):165-70.PJ

Abstract

Acetone, methanol and aqueous extracts of the lichen Cetraria islandica, Lecanora atra, Parmelia pertusa, Pseudoevernia furfuraceae and Umbilicaria cylindrica were investigated for antioxidant activity by five different methods: DPPH radical scavenging, superoxide anion radical scavenging, reducing power, determination of total phenolic compounds and determination of total flavonoid content. Different antioxidant activities of the tested extracts were studied in comparison to known antioxidants such as ascorbic acid, butylated hydroxyanisole (BHA) and α-tocopherol. The tested extracts had strong antioxidant activity. The DPPH radical scavenging activity ranging from 32.68-94.70%. For reducing power, measured values of absorbance varied from 0.016 to 0.109. The superoxide anion scavenging activity for different extracts was 7.31-84.51%. In addition, the high contents of total phenolic compounds (12-76.42 μg of pyrocatechol equivalent) and total flavonoids (1.37-54.77 μg of rutin equivalent) suggests that phenols and flavonoids might be the major antioxidant compounds in studied extracts. Tested lichen species were found to possess effective antioxidant activities and can be used as good natural sources of antioxidants.

Authors+Show Affiliations

Kosanić M

Department of Biology, Faculty of Science, University of Kragujevac, Kragujevac, Radoja Domanovića 12, Serbia. marijanakosanic@yahoo.com

Ranković B

No affiliation info available

MeSH

AntioxidantsFlavonoidsFree Radical ScavengersLichensPhenols

Pub Type(s)

Journal Article

Language

eng

PubMed ID

21454165

Citation

Kosanić, Marijana, and Branislav Ranković. "Lichens as Possible Sources of Antioxidants." Pakistan Journal of Pharmaceutical Sciences, vol. 24, no. 2, 2011, pp. 165-70.

Kosanić M, Ranković B. Lichens as possible sources of antioxidants. Pak J Pharm Sci. 2011;24(2):165-70.

Kosanić, M., & Ranković, B. (2011). Lichens as possible sources of antioxidants. Pakistan Journal of Pharmaceutical Sciences, 24(2), 165-70.

Kosanić M, Ranković B. Lichens as Possible Sources of Antioxidants. Pak J Pharm Sci. 2011;24(2):165-70. PubMed PMID: 21454165.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Lichens as possible sources of antioxidants. AU - Kosanić,Marijana, AU - Ranković,Branislav, PY - 2011/4/2/entrez PY - 2011/4/2/pubmed PY - 2011/5/17/medline SP - 165 EP - 70 JF - Pakistan journal of pharmaceutical sciences JO - Pak J Pharm Sci VL - 24 IS - 2 N2 - Acetone, methanol and aqueous extracts of the lichen Cetraria islandica, Lecanora atra, Parmelia pertusa, Pseudoevernia furfuraceae and Umbilicaria cylindrica were investigated for antioxidant activity by five different methods: DPPH radical scavenging, superoxide anion radical scavenging, reducing power, determination of total phenolic compounds and determination of total flavonoid content. Different antioxidant activities of the tested extracts were studied in comparison to known antioxidants such as ascorbic acid, butylated hydroxyanisole (BHA) and α-tocopherol. The tested extracts had strong antioxidant activity. The DPPH radical scavenging activity ranging from 32.68-94.70%. For reducing power, measured values of absorbance varied from 0.016 to 0.109. The superoxide anion scavenging activity for different extracts was 7.31-84.51%. In addition, the high contents of total phenolic compounds (12-76.42 μg of pyrocatechol equivalent) and total flavonoids (1.37-54.77 μg of rutin equivalent) suggests that phenols and flavonoids might be the major antioxidant compounds in studied extracts. Tested lichen species were found to possess effective antioxidant activities and can be used as good natural sources of antioxidants. SN - 1011-601X UR - https://www.unboundmedicine.com/medline/citation/21454165/Lichens_as_possible_sources_of_antioxidants_ L2 - https://medlineplus.gov/antioxidants.html DB - PRIME DP - Unbound Medicine ER -

Tags

Lichens as possible sources of antioxidants.Pak J Pharm Sci. 2011 Apr; 24(2):165-70.PJ