Table 4. The quality properties of bottom-fermented beers (lager)

pH Total acid (%, citric acid) Amino acidity (mL/10 mL) Reducing sugar (%) Soluble solid (°Brix) Alcohol (%) Volatile acid (mg/L) Color (EBC)
1 4.07±0.011)f2) 0.14±0.00b 0.62±0.04h 0.08±0.00h 4.57±0.06j 4.27±0.06de 75.47±0.92b 8.03±0.68e
2 4.27±0.02d 0.10±0.01e 0.52±0.01i 0.12±0.00cd 5.60±0.00e 4.13±0.06ef 59.53±1.51d 6.69±0.08g
3 4.24±0.02d 0.10±0.00ef 0.65±0.05gh 0.11±0.00e 5.37±0.06f 4.20±0.00de 54.60±2.12e 6.14±0.18h
4 4.15±0.02e 0.11±0.01d 0.37±0.01j 0.14±0.00a 5.77±0.06c 3.83±0.12g 78.87±2.14a 11.79±0.13a
5 4.49±0.03a 0.15±0.00a 1.17±0.01b 0.12±0.00bc 6.37±0.06a 5.20±0.10a 66.93±0.83c 9.43±0.35c
6 4.40±0.03c 0.15±0.01a 1.03±0.01c 0.10±0.00g 5.20±0.00h 4.43±0.06cd 32.80±0.40h 5.48±0.48i
7 4.37±0.01c 0.13±0.01c 0.95±0.04d 0.15±0.00a 5.80±0.00c 3.90±0.10fg 43.47±0.61g 7.14±0.09fg
8 4.44±0.01b 0.15±0.00a 1.45±0.04a 0.12±0.00b 6.37±0.06a 4.73±0.15b 67.27±1.17c 10.60±0.13b
9 4.47±0.02ab 0.15±0.00a 0.84±0.03e 0.12±0.00d 5.90±0.00b 4.33±0.06de 50.60±2.78f 7.23±0.10f
10 4.18±0.01e 0.11±0.01d 0.56±0.02i 0.10±0.00g 5.30±0.00g 4.63±0.29bc 43.20±0.80g 8.05±0.17e
11 4.38±0.02c 0.10±0.01ef 0.69±0.03g 0.10±0.00g 5.10±0.00i 3.80±0.26g 33.53±1.17h 6.04±0.04h
12 4.44±0.02b 0.12±0.00d 0.74±0.03f 0.11±0.00f 5.70±0.00d 4.07±0.15efg 65.40±1.44c 8.64±0.09d
13 4.06±0.03f 0.10±0.00f 0.27±0.03k 0.11±0.00ef 4.13±0.06k 5.07±0.25a 75.80±1.25b 10.52±0.14b
All values are mean±standard deviation (n=3).
Means in a row by different superscripts are significantly different at 5% significance level by Duncan’s multiple range test.