Antioxidant activity of pitcher extracts from three Nepenthes species

Muhammad Aqil Fitri Rosli, Kamalrul Azlan Azizan, Hoe Han Goh

Research output: Contribution to journalArticle

Abstract

Nepenthes, locally known as ‘periuk kera’in Malaysia, is a fascinating species due to uniqueness in their morphology in having pitcher organ for carnivorous diet. The pitcher plant has been used for cooking traditional delicacies and as traditional remedies to treat illness. Hence, this species might possess beneficial health properties. This study aimed to compare the antioxidant activity of the pitcher extracts from Nepenthes ampullaria, Nepenthes rafflesiana and their hybrid, Nepenthes × hookeriana. The samples were extracted using methanol:chloroform:water (3:1:1) via sonication assisted extraction and the extracts were subjected to three different antioxidant assays, namely 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing power (FRAP) and total phenolic content (TPC). Extract from N. ampullaria exhibited the strongest radical scavenging activity (0.148 ± 0.04 mg/mL) with the highest ferric reducing power (0.009 ± 0.003 mg GA/mg dry weight) among the three species, whereas that of N. rafflesiana possessed the highest phenolic content (0.057 ± 0.017 mg GA/mg dry weight). However, the antioxidant capacities of the pitcher extracts were not significantly different (p>0.05) between the three species and were much lower than the gallic acid as a standard reference.

Original languageEnglish
Pages (from-to)3069-3075
Number of pages7
JournalSains Malaysiana
Volume47
Issue number12
DOIs
Publication statusPublished - 1 Dec 2018

Fingerprint

Nepenthes
Nepenthes rafflesiana
antioxidant activity
extracts
antioxidants
reference standards
gallic acid
chloroform
Malaysia
cooking
methanol
assays
diet
water
sampling
Nepenthes ampullaria

Keywords

  • Antioxidants activity
  • DPPH assay
  • Ferric reducing power assay
  • Nepenthes sp
  • Total phenolic content

ASJC Scopus subject areas

  • General

Cite this

Antioxidant activity of pitcher extracts from three Nepenthes species. / Rosli, Muhammad Aqil Fitri; Azizan, Kamalrul Azlan; Goh, Hoe Han.

In: Sains Malaysiana, Vol. 47, No. 12, 01.12.2018, p. 3069-3075.

Research output: Contribution to journalArticle

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