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KMID : 1134820130420030363
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Journal of the Korean Society of Food Science and Nutrition
2013 Volume.42 No. 3 p.363 ~ p.368
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Nutrients and Antioxidative Activities of Metasequoia glyptostroboides
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Bae Young-Il
Lee Ju-Won
Ha Tae-Jung
Hwang Seung-Ha
Shin Chang-Sik
Jeong Chang-Ho
Kim Il-Hun
Shim Ki-Hwan
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Abstract
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The nutrients and antioxidative activities of fruits and leaves from Metasequoia glyptostroboides were investigated to provide basic data for the future development of functional foods. The nitrogen-free extract contents of fruit and leaves were 69.04% and 50.47%, respectively. Total phenolic content was higher in leaves (21.75 mg/GAE g) compared to the fruit (19.95 mg/GAE g). The mineral components of fruit and leaves mainly consisted of calcium (2,136.08 and 304.85 mg/100 g, respectively), potassium (1,355.53 and 1,144.04 mg/100 g, respectively), and phosphorous (426.30 and 350.50 mg/100 g, respectively). In terms of amino acid composition, aspartic acid, glutamic acid, proline, and leucine were relatively high, but methionine and cystine were low. The hot water extract from leaves was a more potent free radical-scavenger and had higher reducing activities than extracts from fruit. Thus, phenolics of M. glyptostroboides leaves can be utilized as an effective functional food substance for its natural antioxidant properties.
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KEYWORD
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Metasequoia glyptostroboides, fruit, leaf, nutrient, antioxidative activity
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