Accumulation of gamma-aminobutyric acid in rice germ using protease

Biosci Biotechnol Biochem. 2006 May;70(5):1160-5. doi: 10.1271/bbb.70.1160.

Abstract

The accumulation of gamma-aminobutyric acid (GABA) in the rice germ by using protease was investigated. After the proteolytic hydrolysis of germ protein by trypsin, the amount of GABA reached about 2.26 g per 100 g of germ. This demonstrates that the GABA yield could be significantly increased by protease. Our method is efficient and safe for manufacturing health food enriched with GABA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Food Handling / methods*
  • Food, Fortified / analysis*
  • Hydrogen-Ion Concentration
  • Hydrolysis
  • Oryza / chemistry*
  • Plant Proteins / chemistry*
  • Seeds / chemistry
  • Trypsin / chemistry*
  • gamma-Aminobutyric Acid / analysis*

Substances

  • Plant Proteins
  • gamma-Aminobutyric Acid
  • Trypsin