Antioxidant content, antioxidant activity, and antibacterial activity of five plants from the commelinaceae family

Joash Ban Lee Tan, Wei Jin Yap, Shen Yeng Tan, Yau Yan Lim, Sui Mae Lee

Research output: Contribution to journalArticleResearchpeer-review

24 Citations (Scopus)

Abstract

Commelinaceae is a family of herbaceous flowering plants with many species used in ethnobotany, particularly in South America. However, thus far reports of their bioactivity are few and far between. The primary aim of this study was to quantify the antioxidant and antibacterial activity of five Commelinaceae methanolic leaf extracts. The antioxidant content was evaluated by the total phenolic content (TPC), total tannin content (TTC), and total flavonoid content (TFC) assays. The antioxidant activities measured were DPPH free radical scavenging (FRS), ferric reducing power (FRP), and ferrous ion chelating (FIC); of the five plants, the methanolic leaf extract of Tradescantia zebrina showed the highest antioxidant content and activity, and exhibited antibacterial activity against six species of Gram-positive and two species of Gram-negative bacteria in a range of 5–10 mg/mL based on the broth microdilution method.

Original languageEnglish
Pages (from-to)758-769
Number of pages12
JournalAntioxidants
Volume3
Issue number4
DOIs
Publication statusPublished - Dec 2014

Keywords

  • Antibacterial
  • Antioxidant
  • Commelinaceae
  • Methanolic extracts

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