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Antioxidant activity of inflorescences, leaves and fruits of three Sorbus species in relation to their polyphenolic composition.
Nat Prod Res 2009; 23(16):1507-21NP

Abstract

The antioxidant potential of 70% methanolic extracts from the inflorescences, leaves and fruits of Sorbus aucuparia, S. aria and S. intermedia was evaluated using three in vitro test systems (DPPH: 2,2-diphenyl-1-picryl hydrazyl; TEAC: trolox equivalent antioxidant capacity and FRAP: ferric reducing/antioxidant power). High activities found were expressed as micromoles trolox equivalents per gram dry weight and were in the range of 86.9-956.2 for the DPPH test, 65.3-577.2 for the TEAC assay and 221.1-1915.2 for the FRAP method. Significant linear correlations (R(2) in the range of 0.75-0.98) between these values and the contents of total phenolics, total flavonoids, total proanthocyanidins and chlorogenic acid isomers showed that the listed phenolic compounds are determinants of the antioxidant capacity tested. As the superior activity and the highest phenolic levels (11.83% of total phenolics calculated as gallic acid equivalents, 4.35% of chlorogenic acid isomers, 5.01% of proanthocyanidins and 1.28% of flavonoid aglycones) were found for S. aucuparia inflorescence, this plant material has the greatest potential as a source for natural health products.

Authors+Show Affiliations

Department of Pharmacognosy, Faculty of Pharmacy, Medical University of Łódź, Łódź, Poland. monika.olszewska@umed.lodz.plNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19844825

Citation

Olszewska, Monika A., and Piotr Michel. "Antioxidant Activity of Inflorescences, Leaves and Fruits of Three Sorbus Species in Relation to Their Polyphenolic Composition." Natural Product Research, vol. 23, no. 16, 2009, pp. 1507-21.
Olszewska MA, Michel P. Antioxidant activity of inflorescences, leaves and fruits of three Sorbus species in relation to their polyphenolic composition. Nat Prod Res. 2009;23(16):1507-21.
Olszewska, M. A., & Michel, P. (2009). Antioxidant activity of inflorescences, leaves and fruits of three Sorbus species in relation to their polyphenolic composition. Natural Product Research, 23(16), pp. 1507-21. doi:10.1080/14786410802636177.
Olszewska MA, Michel P. Antioxidant Activity of Inflorescences, Leaves and Fruits of Three Sorbus Species in Relation to Their Polyphenolic Composition. Nat Prod Res. 2009;23(16):1507-21. PubMed PMID: 19844825.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antioxidant activity of inflorescences, leaves and fruits of three Sorbus species in relation to their polyphenolic composition. AU - Olszewska,Monika A, AU - Michel,Piotr, PY - 2009/10/22/entrez PY - 2009/10/22/pubmed PY - 2010/1/14/medline SP - 1507 EP - 21 JF - Natural product research JO - Nat. Prod. Res. VL - 23 IS - 16 N2 - The antioxidant potential of 70% methanolic extracts from the inflorescences, leaves and fruits of Sorbus aucuparia, S. aria and S. intermedia was evaluated using three in vitro test systems (DPPH: 2,2-diphenyl-1-picryl hydrazyl; TEAC: trolox equivalent antioxidant capacity and FRAP: ferric reducing/antioxidant power). High activities found were expressed as micromoles trolox equivalents per gram dry weight and were in the range of 86.9-956.2 for the DPPH test, 65.3-577.2 for the TEAC assay and 221.1-1915.2 for the FRAP method. Significant linear correlations (R(2) in the range of 0.75-0.98) between these values and the contents of total phenolics, total flavonoids, total proanthocyanidins and chlorogenic acid isomers showed that the listed phenolic compounds are determinants of the antioxidant capacity tested. As the superior activity and the highest phenolic levels (11.83% of total phenolics calculated as gallic acid equivalents, 4.35% of chlorogenic acid isomers, 5.01% of proanthocyanidins and 1.28% of flavonoid aglycones) were found for S. aucuparia inflorescence, this plant material has the greatest potential as a source for natural health products. SN - 1478-6427 UR - https://www.unboundmedicine.com/medline/citation/19844825/Antioxidant_activity_of_inflorescences_leaves_and_fruits_of_three_Sorbus_species_in_relation_to_their_polyphenolic_composition_ L2 - http://www.tandfonline.com/doi/full/10.1080/14786410802636177 DB - PRIME DP - Unbound Medicine ER -