Accumulation of γ-Aminobutyric Acid in Rice Germ Using Protease

Hui ZHANG; Hui-yuan YAO; Feng CHEN

doi:10.1271/bbb.70.1160

Bioscience, Biotechnology, and Biochemistry

Online ISSN : 1347-6947
Print ISSN : 0916-8451

Food & Nutrition Science Regular Papers

Accumulation of γ-Aminobutyric Acid in Rice Germ Using Protease

Hui ZHANG, Hui-yuan YAO, Feng CHEN

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Keywords: γ-aminobutyric acid, rice germ, glutamate decarboxylase, accumulation, trypsin

JOURNAL FREE ACCESS

2006 Volume 70 Issue 5 Pages 1160-1165

DOI https://doi.org/10.1271/bbb.70.1160

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Abstract

The accumulation of γ-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.

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