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Total phenolic and flavonoid contents, antioxidant and antimicrobial activities of Alnus glutinosa (L.) Gaertn., Alnus incana (L.) Moench and Alnus viridis (Chaix) DC. extracts.
Nat Prod Res. 2014; 28(24):2317-20.NP

Abstract

The objective of this study was to determine total phenolic and flavonoid contents, antioxidant and antimicrobial activities of methanolic extracts from the leaves and barks of three Alnus species. The phenolic and flavonoid contents of extracts were determined spectrophotometrically using Folin-Ciocalteau and aluminium chloride methods, respectively. In addition, antioxidant activity of the extracts was determined using 1,1-diphenyl-2-picrylhydrazyl radical scavenging method. The antimicrobial activity was performed by disc diffusion assay against six reference bacterial strains including Gram-negative and Gram-positive bacteria and two fungal strains. Extract of Alnus viridis bark contained the highest amounts of total phenolics (780 mg CAT/g), while extract of A. viridis leaves had the highest amount of flavonoids (30.01 mg RUT/g). All extracts showed antioxidant activity higher than thymol, which was used as a positive probe. The largest diameters of inhibition zone (25 mm) were recorded with Bacillus subtilis 168 M and Staphylococcus aureus ATCC 6538.

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Authors+Show Affiliations

Dahija S
a Department of Biology , Faculty of Science, University of Sarajevo , Sarajevo , Bosnia and Herzegovina.
Cakar J
No affiliation info available
Vidic D
No affiliation info available
Maksimović M
No affiliation info available
Parić A
No affiliation info available

MeSH

AlnusAnti-Bacterial AgentsAnti-Infective AgentsAntioxidantsBiphenyl CompoundsFlavonoidsMicrobial Sensitivity TestsPhenolsPicratesPlant BarkPlant ExtractsPlant LeavesPseudomonas aeruginosaStaphylococcus aureus

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24969264

Citation

Dahija, Sabina, et al. "Total Phenolic and Flavonoid Contents, Antioxidant and Antimicrobial Activities of Alnus Glutinosa (L.) Gaertn., Alnus Incana (L.) Moench and Alnus Viridis (Chaix) DC. Extracts." Natural Product Research, vol. 28, no. 24, 2014, pp. 2317-20.
Dahija S, Cakar J, Vidic D, et al. Total phenolic and flavonoid contents, antioxidant and antimicrobial activities of Alnus glutinosa (L.) Gaertn., Alnus incana (L.) Moench and Alnus viridis (Chaix) DC. extracts. Nat Prod Res. 2014;28(24):2317-20.
Dahija, S., Cakar, J., Vidic, D., Maksimović, M., & Parić, A. (2014). Total phenolic and flavonoid contents, antioxidant and antimicrobial activities of Alnus glutinosa (L.) Gaertn., Alnus incana (L.) Moench and Alnus viridis (Chaix) DC. extracts. Natural Product Research, 28(24), 2317-20. https://doi.org/10.1080/14786419.2014.931390
Dahija S, et al. Total Phenolic and Flavonoid Contents, Antioxidant and Antimicrobial Activities of Alnus Glutinosa (L.) Gaertn., Alnus Incana (L.) Moench and Alnus Viridis (Chaix) DC. Extracts. Nat Prod Res. 2014;28(24):2317-20. PubMed PMID: 24969264.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Total phenolic and flavonoid contents, antioxidant and antimicrobial activities of Alnus glutinosa (L.) Gaertn., Alnus incana (L.) Moench and Alnus viridis (Chaix) DC. extracts. AU - Dahija,Sabina, AU - Cakar,Jasmina, AU - Vidic,Danijela, AU - Maksimović,Milka, AU - Parić,Adisa, Y1 - 2014/06/27/ PY - 2014/6/28/entrez PY - 2014/6/28/pubmed PY - 2015/2/24/medline KW - Alnus KW - antibacterial activity KW - antifungal activity KW - antioxidant activity KW - flavonoids KW - phenolics SP - 2317 EP - 20 JF - Natural product research JO - Nat Prod Res VL - 28 IS - 24 N2 - The objective of this study was to determine total phenolic and flavonoid contents, antioxidant and antimicrobial activities of methanolic extracts from the leaves and barks of three Alnus species. The phenolic and flavonoid contents of extracts were determined spectrophotometrically using Folin-Ciocalteau and aluminium chloride methods, respectively. In addition, antioxidant activity of the extracts was determined using 1,1-diphenyl-2-picrylhydrazyl radical scavenging method. The antimicrobial activity was performed by disc diffusion assay against six reference bacterial strains including Gram-negative and Gram-positive bacteria and two fungal strains. Extract of Alnus viridis bark contained the highest amounts of total phenolics (780 mg CAT/g), while extract of A. viridis leaves had the highest amount of flavonoids (30.01 mg RUT/g). All extracts showed antioxidant activity higher than thymol, which was used as a positive probe. The largest diameters of inhibition zone (25 mm) were recorded with Bacillus subtilis 168 M and Staphylococcus aureus ATCC 6538. SN - 1478-6427 UR - https://www.unboundmedicine.com/medline/citation/24969264/Total_phenolic_and_flavonoid_contents_antioxidant_and_antimicrobial_activities_of_Alnus_glutinosa__L___Gaertn__Alnus_incana__L___Moench_and_Alnus_viridis__Chaix__DC__extracts_ L2 - https://www.tandfonline.com/doi/full/10.1080/14786419.2014.931390 DB - PRIME DP - Unbound Medicine ER -