Phytochemical Screening, Antioxidant Activity and Phenolic Content of Different Plant Parts of Brucea javanica (L.)

Authors

  • Hamidah Jaafar Sidek Faculty of Applied Sciences, Universiti Teknologi MARA Perlis Branch, Arau Campus
  • Hidayatul Atiqah Abd Karim Atta-ur-Rahman Institute for Natural Product Discovery (AuRIns), Universiti Teknologi MARA Puncak Alam
  • Zurina Mahmud Faculty of Applied Sciences, Universiti Teknologi MARA Perlis Branch, Arau Campus

DOI:

https://doi.org/10.24191/ji.v14i2.215

Keywords:

Brucea javanica (L.), simaroubaceae, phytochemical screening, antioxidant activity, phenolic content

Abstract

In this study, phytochemical screening, antioxidant activity as well as phenolic content in the leaves,twigs and barks of Brucea javanica (L.) were determined using standard phytochemical screeningmethod, DPPH radical scavenging assay and Folin-Ciocalteu reagent method, respectively. Methanolicextracts of these different plant parts were prepared by maceration method. Phytochemical screeningrevealed the presence of flavonoids, terpenoids and tannins in all plant parts. This test also revealed thepresence of alkaloids and saponins in all plant parts except they were absent in the twigs and barks parts,respectively. On the other hand, steroids was absent in all plant parts. DPPH method was used toevaluate the antioxidant properties of the plant parts by measuring the absorbance at 517 nm. Theantioxidant activity was then compared with standard ascorbic acid. Among all parts, methanolic extractof leaves of Brucea javanica (L.) exhibited the highest antioxidant activity at the concentration of 100ppm with 86.19 ± 0.20% inhibition which was comparable with standard ascorbic acid with 97.62 ±0.13% inhibition at the same concentration. The IC50 value of the methanolic extract of leaves was 54.52± 0.16 ppm while the other parts were more than 100 ppm. All plant parts showed IC50 value higher thanthe standard ascorbic acid which recorded IC50 of 9.04 ± 0.09 ppm. The methanolic extract of the leavesalso exhibited the highest total phenolic content which was 105.58 ± 0.21 mg GAE/g extract compared tothe other parts. This result correlated well with the higher antioxidant activity exhibited by themethanolic extract of the leaves. Thus, the leaves part of methanolic extract of Brucea javanica (L.)exhibited the highest antioxidant activity compared to the other plant parts. Keywords: Brucea javanica (L.), simaroubaceae, phytochemical screening, antioxidant activity, phenolic content

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Published

2019-11-29

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