Table 1
pH, titratable acidity and composition of organic acids in Omija fruits and Omija-cheong

Day pH Titratable acidity (%) Organic acid (g/L)
Citric acid Malic acid Succinic acid
Fresh fruit1) 3.07±0.02b2) 1.16±0.02a 19.2±1.62c 6.30±0.63c 159±5.40b
5 2.96±0.08a 1.18±0.06a 7.91±0.16a 2.64±0.23a 77.6±1.31a
19 2.93±0.04a 1.90±0.34b 15.7±1.55b 5.26±0.81b 154±3.85b
37 2.92±0.04a 2.26±0.19c 22.2±0.95d 9.25±0.32d 194±4.45c
68 2.87±0.05a 2.67±0.11d 23.2±0.49d 10.5±0.36e 209±4.91d
92 2.90±0.05a 2.70±0.13d 23.4±0.46d 10.8±0.68e 215±0.85d
138 2.88±0.03a 2.71±0.12d 23.2±0.53d 10.2±0.48e 222±2.05e
Soluble extract from fresh Omija fruits, a raw material for Omija-cheong processing.
The values with different superscripts within a column are significantly different (p<0.05) by Duncan’s multiple range tests