Abstract
The level of γ-aminobutyric acid (GABA) in pigmented rice was quantitatively and qualitatively determined by high pressure liquid chromatography/fluorescence detection (HPLC/FLD). In this study, the recovery rate and limit of detection (LOD) of GABA were 122.4±2.4% and 0.23 μg/g, respectively. The geminating pigmented rice samples, which were harvested in Paju, Korea, were soaked in water at 18°C for 20 hr. After soaking, the samples were germinated at 30°C for about 24 hr. GABA content was highest (293.0 μg/g) in the germinated red rice. Furthermore, GABA levels in the germinated rice increased significantly by up to 11.1 and 24.7-fold as compared to non-germinated rice and milled rice, respectively. The GABA concentrations of non-germinated rice, with the exception of red rice, were significantly higher than those of milled rice by 7.6-20.6-fold.
Original language | English |
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Pages (from-to) | 632-636 |
Number of pages | 5 |
Journal | Korean Journal of Food Science and Technology |
Volume | 42 |
Issue number | 5 |
State | Published - 2010 |
Keywords
- γ-aminobutyric acid (GABA)
- Black rice
- Germinated rice
- Pigmented rice
- Red rice