Journal
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
Volume 12, Issue 9, Pages 6077-6088Publisher
MDPI
DOI: 10.3390/ijms12096077
Keywords
Moringa oleifera; antioxidative activity; extract; season
Funding
- National Science Council of the Republic of China [NSC 93-2214-E-254-001, NSC 97-2313-B-019-007-MY3]
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Moringa oleifera, Lam. (Moringaceae) is grown world-wide in the tropics and sub-tropics of Asia and Africa and contains abundant various nutrients. This study describes the effect of different parts (leaf, stem and stalk) and seasons (summer and winter) on the chemical compositions and antioxidant activity of M. oleifera grown in Taiwan. The results showed that the winter samples of Moringa had higher ash (except the stalk part), calcium and phenolic compounds (except the leaf part) and stronger antioxidative activity than summer samples. The methanolic extract of Moringa showed strong scavenging effect of DPPH radicals and reducing power. The trend of antioxidative activity as a function of the part of Moringa was: leaf > stem > stalk for samples from both seasons investigated. The Moringa extract showed strong hydrogen peroxide scavenging activity and high Superoxide Dismutase (SOD) activity except the stalk part.
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