Open AccessPhytochemical screening and antioxidant activity of Melastoma malabathricum and Chromolaena odorata by DPPH radical scavenging method
Author(s) -
Noriszura Ismail,
Nurul Amira,
Siti Noor Hajjar Md Latip,
Wan Zuraida Wan Mohd Zain,
S.N.A. Aani,
Nurain Aziman
Publication year - 2021
Publication title -
food research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.218
H-Index - 7
ISSN - 2550-2166
DOI - 10.26656/fr.2017.5(s4).006
Subject(s) - chromolaena odorata , dpph , phytochemical , chemistry , antioxidant , terpenoid , traditional medicine , weed , botany , food science , biology , organic chemistry , biochemistry , medicine
Melastoma malabathricum and Chromolaena odorata are classified under broad-leavedweeds that are widely spread in the open land area. Melastoma malabathricum iscommonly known as ‘‘senduduk’’, and C. odorata is locally known as “Pokok KapalTerbang”. Both weeds are categorized as potential weeds as they have high nutritive valueand are rich in chemical compounds. This study aimed to determine their chemicalconstituents and possible potential for antioxidant activity as these weeds have beenreported to possess antioxidant properties. Screening of the plants was performed usingstandard methods and revealed the existence of various secondary metabolites such assaponins, terpenoids, phenols, tannins, and flavonoids of both weed extracts. Antioxidantactivity was validated by the DPPH radical scavenging assay of M. malabathricum and C.odorata crude ethanol extract. The IC50 values for the percentage radical scavengingeffects for the extracts were determined. The IC50 value of M. malabatrichum extract was81.116 μg/mL, C. odorata was 312.903 μg/mL, Vitamin C was 31.023 μg/mL and BHAwas 71.521 μg/mL respectively. The study showed that the antioxidant activity of M.malabatrichum was more potent and better than C. odorata.