National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Republic of Korea.
J Agric Food Chem. 2010 Dec 22;58(24):12804-9. doi: 10.1021/jf103277g. Epub 2010 Nov 19.
Flavonoids and carotenoids of pigmented rice ( Oryza sativa L.), including five black cultivars and two red cultivars, from Korea were characterized to determine the diversity among the phytochemicals and to analyze the relationships among their contents. Black cultivars were higher in flavonoids and carotenoids than the red and white cultivars. The profiles of eight phytochemicals identified from the rice grains were subjected to principal component analysis (PCA) to evaluate the differences among cultivars. PCA could fully distinguish between these cultivars. The Heugjinjubyeo (BR-1) and Heugseolbyeo (BR-2) cultivars were separated from the others based on flavonoid and carotenoid concentrations. Flavonoid contents had a positive correlation with carotenoid contents among all rice grains. The BR-1 and BR-2 cultivars appear to be good candidates for future breeding programs because they have simultaneously high flavonoid and carotenoid contents.
韩国五种黑米和两种红米品种的色素稻米（Oryza sativa L.）的类黄酮和类胡萝卜素的特征，以确定其植物化学物质的多样性，并分析其含量之间的关系。黑米品种的类黄酮和类胡萝卜素含量高于红米和白米品种。从稻米中鉴定出的八种植物化学物质的图谱进行主成分分析（PCA），以评估品种间的差异。PCA 可以完全区分这些品种。Heugjinjubyeo（BR-1）和 Heugseolbyeo（BR-2）品种根据类黄酮和类胡萝卜素的浓度与其他品种分开。所有稻米中类黄酮含量与类胡萝卜素含量呈正相关。BR-1 和 BR-2 品种似乎是未来育种计划的良好候选品种，因为它们同时具有高含量的类黄酮和类胡萝卜素。
