Table 1. Chemical properties of nonsteamed rice mash prepared with various amylase products

Enzyme products Alcohol (%) Acidity (acetic acid, %) Amino acidity (glycine, %) Reducing sugar (%) Free amino nitrogen (mg/L)
White koji 19.69±0.02b1)2) 0.06±0.00d 0.04±0.00a 0.42±0.01a 1,634.64±5.83b
Modified nuruk 20.28±0.01a 0.05±0.00d 0.04±0.00a 0.11±0.01b 2,707.98±17.35a
Chung-moo PE3) 7.82±0.02f 0.12±0.00a 0.03±0.00b 0.09±0.01d 1,329.85±26.79c
Nurukzyme R400 16.40±0.04c 0.09±0.00c 0.02±0.00c 0.10±0.00cd 936.26±11.36e
Sanferm yield 9.50±0.03e 0.12±0.00a 0.03±0.00b 0.11±0.01bc 1,234.59±28.78d
Diazyme X4 11.80±0.02d 0.10±0.00b 0.02±0.00c 0.06±0.01e 636.48±4.05f
All values are mean±SD (n=3).
a-fMeans with different superscripts in the same column are significantly different at p<0.05 by Duncan’s multiple range test.
Chung-moo PE means Chung-moo purified enzyme.