Table 6. GABA and free sugars contents and saccharification power of unhulled rice germinated at 30℃ for different time after steeping for 24 h (dry basis)

Samples GABA content(mg/100 g) Free sugar contents (%) Soluble sugar content of saccharified soln.2) (°Brix)
Fructose Glucose Maltose Sucrose Total
Non-germinated rice 7.73±0.21d1) - 1.68±0.08d - - 1.68±0.08c 4.6±0.2c2)
Germinated rice for 20 h 16.28±0.24a 0.36±0.03b 18.65±1.19a - - 19.00±1.20a 8.8±0.1b
Germinated rice for 24 h 13.86±0.91b - 17.89±1.00ab - - 17.89±1.00ab 9.7±0.2ab
Germinated rice for 28 h 9.88±0.84c 0.64±0.04a 15.93±0.91c - - 16.57±0.94b 10.2±0.1a
Germinated rice for 32 h 6.17±0.75d - 16.44±1.06bc - - 16.44±1.06b 9.9±0.3a
1)Values with different small letters in the same column are significantly different by Duncan's multiple range test (p<0.05). (a>b>c>d).
2)Saccharified solution was obtained by incubation of germinated rice in water at 45℃ for 20 min, at 60℃ for 25 min, at 65℃ for 80 min, at 72℃ for 15 min, and at 78℃ for 5 min.