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참나무류 종실 9종의 영양성분 및 항산화 기능성 물질 비교 분석
Donghwan Shim,Sang Urk Han,Il Hwan Lee,Jinjoong Kim,Youngki Park 한국약용작물학회 2017 한국약용작물학술대회 발표집 Vol.2017 No.05
Background : Native oak tree species dominated the deciduous forests of South Korea. The acorns of them represent the main food source for wildlife species as well as human being, and they have 28 species. We analyzed and compared to the antioxidants including total phenolics and functional nutrients components among the acorns of nine kinds of oak trees (Quercus acutissima, Q. aliena, Q. mongolica, Q. variabilis, Q. serrata, Q, palustris, Q. rubra, Q. glauca, and Q. acuta). Methods and Results : Acorns were collected from each tree species, which were grown in a seed orchard. Contents of both total phenolic content (TPC) in acorns of Q. serrata were higher than others. Interestingly, Q. serrata contained the highest amount of water soluble tannins and the lowest levels of water insoluble tannins among 9 oak species, resulting that acorns of Q. serrata had the lowest proportion of insoluble tannins. Among 9 oak species tested, Q. aliena acorns contained the highest levels of total flavonoids content (TFC). Conclusion : Our result showed that nutritional composition of acorns was significantly different between oak species, indicating that tastes or nutritional values might be different as well among major oak species in Korea.