title: Variation and correlation analysis of flavonoids and carotenoids in Korean pigmented rice (Oryza sativa L.) cultivars.
abstract: 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.
authors.affiliation: National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Republic of Korea.
authors.forename: Jae Kwang
authors.initials: JK
authors.lastname: Kim
authors.forename: Si Young
authors.initials: SY
authors.lastname: Lee
authors.forename: Sang Mi
authors.initials: SM
authors.lastname: Chu
authors.forename: Sun Hyung
authors.initials: SH
authors.lastname: Lim
authors.forename: Seok-Cheol
authors.initials: SC
authors.lastname: Suh
authors.forename: Young-Tack
authors.initials: YT
authors.lastname: Lee
authors.forename: Hyun Suk
authors.initials: HS
authors.lastname: Cho
authors.forename: Sun-Hwa
authors.initials: SH
authors.lastname: Ha
mesh_terms: D001947:Breeding; D002338:Carotenoids / Q000032:analysis*; D005419:Flavonoids / Q000032:analysis*; D007723:Korea; D012275:Oryza / Q000737:chemistry* / Q000235:genetics; D010858:Pigmentation; D010936:Plant Extracts / Q000032:analysis*
chemical_list: D005419:Flavonoids; D010936:Plant Extracts; D002338:Carotenoids