Phenolic compounds and bioactivities of pigmented rice

Crit Rev Food Sci Nutr. 2013;53(3):296-306. doi: 10.1080/10408398.2010.529624.

Abstract

The pigmented rice has been consumed in China, Japan, and Korea for a long time. It has been used for strengthening kidney function, treating anemia, promoting blood circulation, removing blood stasis, treating diabetes, and ameliorating sight in traditional Chinese medicine. The extracts from pigmented rice are used as natural food colorants in bread, ice cream, and liquor as well as functional food. The pigmented rice is mainly black, red, and dark purple rice, and contains a variety of flavones, tannin, phenolics, sterols, tocols, γ-oryzanols, amino acids, and essential oils. Anthocyanins are thought as major functional components of pigmented rice. Several anthocyanins have been isolated and identified from the pigmented rice, including cyanidin 3-glucoside, cyanidin 3-galactoside, cyanidin 3-rutinoside, cyanidin 3,5-diglucoside, malvidin 3-galactoside, peonidin 3-glucoside, and pelargonidin 3,5-diglucoside. This review provides up-to-date coverage of pigmented rice in regard to bioactive constituents, extraction and analytical methods, and bioactivities. Special attention is paid to the bioactivities including antioxidant and free radical scavenging, antitumor, antiatherosclerosis, hypoglycemic, and antiallergic activities.

Publication types

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

MeSH terms

  • Animals
  • Anthocyanins / analysis
  • Anti-Allergic Agents / analysis
  • Anti-Allergic Agents / pharmacology
  • Anticholesteremic Agents / analysis
  • Anticholesteremic Agents / pharmacology
  • Antineoplastic Agents / analysis
  • Antineoplastic Agents / pharmacology
  • Antioxidants / analysis
  • Antioxidants / pharmacology
  • China
  • Galactosides / analysis
  • Glucosides / analysis
  • Humans
  • Hypoglycemic Agents / analysis
  • Hypoglycemic Agents / pharmacology
  • Japan
  • Oryza / chemistry*
  • Phenols / pharmacology*
  • Pigmentation*
  • Plant Extracts / analysis
  • Plant Extracts / pharmacology
  • Republic of Korea

Substances

  • Anthocyanins
  • Anti-Allergic Agents
  • Anticholesteremic Agents
  • Antineoplastic Agents
  • Antioxidants
  • Galactosides
  • Glucosides
  • Hypoglycemic Agents
  • Phenols
  • Plant Extracts
  • cyanidin-3-O-beta-glucopyranoside
  • peonidin 3-glucoside
  • cyanidin 3-galactoside
  • malvidin 3-galactoside
  • cyanidin 3-rutinoside