ANTIOXIDANT AND FREE RADICAL SCAVENGING ACTIVITY OF HIBISCUS ACETOSELLA LEAVES EXTRACTS

  • THISAKORN DUMRONGPHUTTIDECHA Department of Thai Traditional Medicine, Rajamangala University of Technology Thanyaburi, Pathumthani, Thailand.
  • SURADWADEE THUNGMUNGMEE Department of Thai Traditional Medicine, Rajamangala University of Technology Thanyaburi, Pathumthani, Thailand.
  • WARACHATE KHOBJAI Department of Thai Traditional Medicine, Rajamangala University of Technology Thanyaburi, Pathumthani, Thailand
  • NAKUNTWALAI WISIDSRI Department of Thai Traditional Medicine, Rajamangala University of Technology Thanyaburi, Pathumthani, Thailand.
  • SURACHAI TECHAEOI Department of Thai Traditional Medicine, Rajamangala University of Technology Thanyaburi, Pathumthani, Thailand

Abstract

Objective: Hibiscus acetosella (HA) or Chaba Maple is native plant and cultivated in tropical western in Africa and north of America. The characteristics
of HA are red to purple in stem, leaf, and flower that are the pigment of antioxidant compound as anthocyanins. Anthocyanins are in the group
of flavonoid and have the role as functional foods which have several health benefits such as obesity and diabetes control, cardiovascular disease
prevention, and others. Hence, the aim of this study was to investigate the antioxidant and free radical scavenging activity of HA leaves extracts.
Materials and Methods: HA (Chaba Maple) leaves were collected in Pathum Thani province, Thailand, and were dried and extracted by maceration
technique with three solvents – water, ethanol, and methanol. The antioxidant properties of extracts were carried out using 2,2’-azino-bis(3-
ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging assay and ferric reducing antioxidant power (FRAP) assay. The extracts were
examined for their scavenging effect on hydroxyl radical (•OH) using hydroxyl radical scavenging assay and nitric oxide (NO) radical (•NO) using NO
radical scavenging assay.
Results: For ABTS, FRAP, and hydroxyl radical scavenging assay, ethanol extract showed the highest antioxidant property which the percentage
inhibitions were 69.04%, 2381.84 μM/mg extract, and 62.88 mg/ml, respectively. For NO scavenging activity, methanol extract showed highest ability
to scavenge NO which percentage inhibition was 101.28±0.73 mg/ml.
Conclusion: The results of this study showed that ethanolic, methanolic, and water extract of HA leaves had scavenge and reducing antioxidant
properties.

Keywords: Hibiscus acetosella, Antioxidants, Radical scavenging activity, Nitric oxide radical

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DUMRONGPHUTTIDECHA, T., THUNGMUNGMEE, S., KHOBJAI, W., WISIDSRI, N., & TECHAEOI, S. (2019). ANTIOXIDANT AND FREE RADICAL SCAVENGING ACTIVITY OF HIBISCUS ACETOSELLA LEAVES EXTRACTS. International Journal of Applied Pharmaceutics, 11(5), 86-89. https://doi.org/10.22159/ijap.2019.v11s5.T0057
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