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Variation in antioxidant activity of extracts of Acacia confusa of different ages.
Nat Prod Commun. 2010 Jan; 5(1):73-6.NP

Abstract

The antioxidant activity of extracts of Acacia confusa of different ages has been evaluated. Ethanolic extracts of bark, twigs, branches (2- and 5 cm-diameter branch-bark, 2- and 5 cm-diameter branch-wood), and leaves of 15-, 25-, and 35-year-old A. confusa were examined. Results indicate that the ethanolic extracts of 5 cm-diameter branch-bark and bark of A. confusa exhibited stronger antioxidant activities, and higher phenolic and proanthocyanidin contents than the other plant parts. Furthermore, twig, 2 cm-diameter branch-wood, 2 cm-diameter branch-bark, and 5 cm-diameter branch-wood extracts of 35-year-old specimens showed better antioxidant activities and higher phenolic contents, followed by the 25- and 15-year-old specimens tested. This reveals that the composition of extracts and their differential antioxidant activities are dependent on the age of A. confusa. In addition, the total phenolic content of A. confusa ethanolic extracts has a high positive correlation with the DPPH free-radical scavenging activity (R2 = 0.83), superoxide radical-scavenging activity (R2 = 0.66), ferrous ion-chelating effect (R2 = 0.67), and reducing power (R2 = 0.92).

Authors+Show Affiliations

School of Forestry and Resource Conservation, National Taiwan University, Taipei, Taiwan.No affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

20184025

Citation

Tung, Yu-Tang, and Shang-Tzen Chang. "Variation in Antioxidant Activity of Extracts of Acacia Confusa of Different Ages." Natural Product Communications, vol. 5, no. 1, 2010, pp. 73-6.
Tung YT, Chang ST. Variation in antioxidant activity of extracts of Acacia confusa of different ages. Nat Prod Commun. 2010;5(1):73-6.
Tung, Y. T., & Chang, S. T. (2010). Variation in antioxidant activity of extracts of Acacia confusa of different ages. Natural Product Communications, 5(1), 73-6.
Tung YT, Chang ST. Variation in Antioxidant Activity of Extracts of Acacia Confusa of Different Ages. Nat Prod Commun. 2010;5(1):73-6. PubMed PMID: 20184025.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Variation in antioxidant activity of extracts of Acacia confusa of different ages. AU - Tung,Yu-Tang, AU - Chang,Shang-Tzen, PY - 2010/2/27/entrez PY - 2010/2/27/pubmed PY - 2010/4/9/medline SP - 73 EP - 6 JF - Natural product communications JO - Nat Prod Commun VL - 5 IS - 1 N2 - The antioxidant activity of extracts of Acacia confusa of different ages has been evaluated. Ethanolic extracts of bark, twigs, branches (2- and 5 cm-diameter branch-bark, 2- and 5 cm-diameter branch-wood), and leaves of 15-, 25-, and 35-year-old A. confusa were examined. Results indicate that the ethanolic extracts of 5 cm-diameter branch-bark and bark of A. confusa exhibited stronger antioxidant activities, and higher phenolic and proanthocyanidin contents than the other plant parts. Furthermore, twig, 2 cm-diameter branch-wood, 2 cm-diameter branch-bark, and 5 cm-diameter branch-wood extracts of 35-year-old specimens showed better antioxidant activities and higher phenolic contents, followed by the 25- and 15-year-old specimens tested. This reveals that the composition of extracts and their differential antioxidant activities are dependent on the age of A. confusa. In addition, the total phenolic content of A. confusa ethanolic extracts has a high positive correlation with the DPPH free-radical scavenging activity (R2 = 0.83), superoxide radical-scavenging activity (R2 = 0.66), ferrous ion-chelating effect (R2 = 0.67), and reducing power (R2 = 0.92). SN - 1934-578X UR - https://www.unboundmedicine.com/medline/citation/20184025/Variation_in_antioxidant_activity_of_extracts_of_Acacia_confusa_of_different_ages_ L2 - https://medlineplus.gov/antioxidants.html DB - PRIME DP - Unbound Medicine ER -
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