Tailoring Grain Storage Reserves for a Healthier Rice Diet and its Comparative Status with Other Cereals

Int Rev Cell Mol Biol. 2016:323:31-70. doi: 10.1016/bs.ircmb.2015.12.003. Epub 2016 Feb 10.

Abstract

A global rise of diet-related noncommunicable diseases calls for a focus on diet-based nutritional intervention across the entire socioeconomic consumer spectrum. We review recent reports in the area of healthier rice aimed at developing rice grains with improved dietary fiber compositions (increased amounts of nonstarch polysaccharides and resistant starch), and less digestible starch (higher amylose and phospholipid complex in the endosperm) resulting in reduced glycemic impact upon grain consumption. We furthermore elaborate on the interconnections of elevated amounts of protein and a balanced composition of essential amino acids. The importance of a nutritious aleurone layer and its role in lipid storage and micronutrient composition is discussed briefly in the context of brown rice benefits. We identify gene targets for precision breeding that will facilitate the production of rice grains and rice-based products to mitigate the impact of nutrition-related preventable diseases.

Keywords: amylopectin; amylose; hidden hunger; malnutrition; nutritional quality; obesity; over/under nutrition; rice-breeding target; seed-storage proteins.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Diet*
  • Edible Grain*
  • Humans
  • Oryza / genetics
  • Oryza / metabolism*
  • Plant Breeding
  • Plant Proteins, Dietary / biosynthesis*
  • Plant Proteins, Dietary / genetics
  • Polysaccharides / biosynthesis*
  • Polysaccharides / genetics
  • Seed Storage Proteins / biosynthesis*
  • Seed Storage Proteins / genetics

Substances

  • Plant Proteins, Dietary
  • Polysaccharides
  • Seed Storage Proteins