モリンガMoringa oleifera の葉に含まれるミネラル，ビタミンC，抗酸化成分の定量的評価

抄録

To quantitatively evaluate the constituents of Moringa (Drumstick tree, Moringa oleifera) leaves, the content of various minerals (potassium (K), calcium (Ca), iron (Fe), manganese (Mn), zinc (Zn) and copper (Cu)) and vitamin C in Moringa leaves and Aojiru (green juice) powder made from them were measured and compared with Aojiru powder made from other plants, and green tea powder. In addition, total polyphenol content and antioxidant activity were measured and evaluated. Compared to the estimated average requirement (EAR) or adequate intake (AI), except for manganese in pine needles, no Aojiru or tea powder, including moringa, were found to be a valuable source of minerals and vitamin C. The freeze-dried powder of fresh Moringa leaves had a higher vitamin C content than the Aojiru powder, but the minerals content was comparable. Total polyphenol content and antioxidant activity were generally correlated, with green tea powder having the highest in both. Although Moringa contains some minerals, vitamin C, and antioxidants, the amount of these components were not found to be superior to those of other Aojiru ingredients and tea leaves. We concluded that Moringa is insignificant as a food rich in minerals, vitamin C, and antioxidants.