title: Polyphenols in whole rice grain: genetic diversity and health benefits.
abstract: Polyphenols, such as phenolic acid, anthocyanin and proanthocyanidins, have both nutraceutical properties and functional significance for human health. Identification of polyphenolic compounds and investigation of their genetic basis among diverse rice genotypes provides the basis for the improvement of the nutraceutical properties of whole rice grain. This review focuses on current information on the identification, genetic diversity, formation and distribution patterns of the phenolic acid, anthocyanin, and proanthocyanidins in whole rice grain. The genetic analysis of polyphenol content and antioxidant capacity allows the identification of several candidate genes or quantitative trait loci (QTL) responsible for polyphenol variation, which may be useful in improvement of these phytochemicals by breeding. Future challenges such as how to mitigate the effects of climate change while improving nutraceutical properties in whole grain, and how to use new technology to develop new rice high in nutraceutical properties are also presented.
authors.affiliation: China National Rice Research Institute, Hangzhou 310006, China; Institute of Nuclear Agricultural Sciences, Zhejiang University, Huajiachi Campus, Hangzhou 310029, China.
authors.forename: Yafang
authors.initials: Y
authors.lastname: Shao
authors.affiliation: Institute of Nuclear Agricultural Sciences, Zhejiang University, Huajiachi Campus, Hangzhou 310029, China. Electronic address: jsbao@zju.edu.cn.
authors.forename: Jinsong
authors.initials: J
authors.lastname: Bao
mesh_terms: D000975:Antioxidants / Q000032:analysis*; D014644:Genetic Variation; D005838:Genotype; D007342:Insurance Benefits; D012275:Oryza / Q000235:genetics*; D059808:Polyphenols / Q000737:chemistry*
chemical_list: D000975:Antioxidants; D059808:Polyphenols
keywords: Genetics; Health benefits; Nutraceutical property; Polyphenols; Rice (Oryza sativa L.)