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KMID : 1134820100390010154
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Journal of the Korean Society of Food Science and Nutrition
2010 Volume.39 No. 1 p.154 ~ p.158
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Effects of Heat Treatment and Selected Medicinal Plant Extracts on GABA Content after GerminationGABA, germination, heat shock, medicinal plant, brown rice
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Jeon Keon-Wook
Lee Mi-Young
Yoon Jae-Min
Jang Sung-Ho
Jung Mi-Ri
Jeong Heon-Sang
Lee Jun-Soo
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Abstract
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The purposes of this work were to study germination conditions on γ-aminobutyric acid (GABA) contents and to develop a simple and effective technique for the production of germinated brown rice with an enhanced GABA levels. The samples were subjected to heat treatments at 40 and 45℃ before the soaking step. Moreover, four medicinal plant extracts including Schizandra chinensis, Dimocarpus longan Lour, Angelica dahurica, and Gastrodia elata Blume were used as soaking and germinating media. GABA levels were enhanced in the germinated brown rice compared to the non-germinated brown rice and the highest GABA contents were observed in heat treatment at 35℃. The brown rice soaked in Gastrodia elata Blume extract showed the highest GABA contents compared to the control sample. These results demonstrate that the GABA levels during germination could be significantly enhanced by the heat treatment and the treatment of medicinal plant extracts in the soaking step.
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KEYWORD
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GABA, germination, heat shock, medicinal plant, brown rice
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