Accumulation of γ-Aminobutyric Acid in Giant-Embryo Rice Grain in Relation to Glutamate Decarboxylase Activity and Its Gene Expression During Water Soaking

2005 ◽  
Vol 82 (2) ◽  
pp. 191-196 ◽  
Author(s):  
L. L. Liu ◽  
H. Q. Zhai ◽  
J.-M. Wan
Keyword(s):  
Gene Expression ◽  
Glutamate Decarboxylase ◽  
Aminobutyric Acid ◽  
Decarboxylase Activity ◽  
Rice Grain ◽  
Its Gene ◽  
Giant Embryo

The Enrichment Condition of γ-Aminobutyric Acid in Shelled Buckwheat by Soaking

2012 ◽  
Vol 554-556 ◽  
pp. 1293-1298
Author(s):  
Shu Xing Liu ◽  
Wei Na Jiao ◽  
Shuang Zhang
Keyword(s):  
Glutamate Decarboxylase ◽  
Calcium Concentration ◽  
Aminobutyric Acid ◽  
Decarboxylase Activity ◽  
Sodium Glutamate ◽  
Effects Of Temperature ◽  
Temperature Time ◽  
Enrichment Condition ◽  
Soaking Temperature

The effects of temperature, time, pH, calcium concentration and the ratio of shelling buckwheat and sodium glutamate were studied while using dipping treatment to accumulate γ-aminobutyric acid (GABA) in north-shaanxi shelled buckwheat. The results were as follows: Glutamate decarboxylase activity is 3.694u/g. The yield of GABA achieves in the largest respectively under the following conditions: Soaking temperature at 40°C, time of 10h, pH6.0, calcium concentration at 0.3mmol/L, the ratio of shelled buckwheat and sodium glutamate at 1800g/mol.

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