Abstract
Lutein, a type of xanthophyll, possesses antioxidative properties that contribute to the prevention of various diseases. Preliminary screening has shown that Japanese mugwort (Artemisia princeps Pamp.) contains high amounts of lutein. In this study, we evaluated the lutein concentration in a processed mugwort product (mugwort paste). By using high-performance liquid chromatography coupled with visible light detection or mass spectrometry, the lutein concentration in mugwort paste was determined as 38 mg/100 g dry weight, which indicates that mugwort is a potentially valuable natural food source of lutein. We also investigated the effects of the manufacturing process and found that the lutein content was significantly increased by the boiling and dehydrating processes during the production of mugwort paste. Mugwort paste that is rich in lutein may therefore serve as an effective nutraceutical.
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