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Int. J. Mol. Sci. 2011, 12(9), 6077-6088; doi:10.3390/ijms12096077

Effect of Different Parts (Leaf, Stem and Stalk) and Seasons (Summer and Winter) on the Chemical Compositions and Antioxidant Activity of Moringa oleifera

1
Department of Food, Health and Nutrition Science, Chinese Culture University, 55 Hwa Kang Road, Taipei 11192, Taiwan
2
Department of Food Science, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 20224, Taiwan
*
Author to whom correspondence should be addressed.
Received: 16 June 2011 / Revised: 30 August 2011 / Accepted: 13 September 2011 / Published: 19 September 2011
(This article belongs to the Section Biochemistry, Molecular Biology and Biophysics)
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Abstract

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.
Keywords: Moringa oleifera; antioxidative activity; extract; season Moringa oleifera; antioxidative activity; extract; season
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Shih, M.-C.; Chang, C.-M.; Kang, S.-M.; Tsai, M.-L. Effect of Different Parts (Leaf, Stem and Stalk) and Seasons (Summer and Winter) on the Chemical Compositions and Antioxidant Activity of Moringa oleifera. Int. J. Mol. Sci. 2011, 12, 6077-6088.

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