THE TOTAL PHENOLICS CONTENTS AND FREE RADICAL SCAVENGING CAPACITY IN FREE AND BOUND EXTRACTS OF PIPER SARMENTOSUM (PUCUK KADUK)

Authors

  • HANAPI MAT JUSOH DEPT NUTRITION SCIENCES, KULLIYYAH OF ALLIED HEALTH SCIENCES
  • NORMAH HARON

DOI:

https://doi.org/10.31436/ijahs.v3i4.184

Abstract

Introduction: Piper sarmentosum is one of the herbaceous plants that has been used as natural antioxidant to treat diseases. This study was conducted to determine the total phenolic content (TPC) and free radical scavenging capacity in free and bound (soluble and insoluble) of P. sarmentosum. Methods: The TPC was determined by using Folin-Ciocalteu assay and is expressed as Gallic Acid equivalent (GAE) in miligrams per gram extracts. The antioxidant scavenging capacity was determined by using DPPH (2, 2-diphenyl-1-picrylhydrazyl) assay. Results: Insoluble bound phenolic extract of P. sarmentosum showed the highest TPC value (1.54 ± 0.04 mg GAE/g DW) followed by soluble phenolic extract and free extract (1.13 ± 0.10 and 0.57 ± 0.06 mg GAE/g DW, respectively). The soluble phenolic fraction has expressed the highest radical scavenging capacity (76.57± 4.12%) followed by insoluble (69.79± 2.33 %) and free extracts (58.15± 4.44 %). The IC50 values for free, soluble and insoluble bound phenolic were 24.05 ± 3.81, 16.17 ± 1.84 and 18.49 ± 1.92 mg/ml, respectively. Conclusions: It can be concluded that different extracts of phenolic give different TPC value and antioxidant activity.

 

KEYWORDS: TPC, radical scavenging, DPPH assay.

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Published

2019-12-31

How to Cite

MAT JUSOH, H., & HARON, N. (2019). THE TOTAL PHENOLICS CONTENTS AND FREE RADICAL SCAVENGING CAPACITY IN FREE AND BOUND EXTRACTS OF PIPER SARMENTOSUM (PUCUK KADUK). INTERNATIONAL JOURNAL OF ALLIED HEALTH SCIENCES, 3(4), 876–883. https://doi.org/10.31436/ijahs.v3i4.184

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