Table 7. Changes in oxidation-reduction potential and water activity of ‘Doenjang’ during fermentation

Component Fermentation time (weeks) ‘Doenjang’1)
Control T-0.5 T-1 T-2 T-3
Oxidation-reduction potential (−mV) 0 66.0±3.85c 69.0±4.83bc 76.0±5.60b 76.4±4.17b 85.0±3.48a
4 73.9±4.60b 75.4±4.74b 99.9±7.82b 103.5±9.15a 105.0±6.62a
8 508.7±79.39 504.9±41.65 510.7±58.68 455.5±51.93 454.4±41.88
12 570.8±60.63 562.3±48.33 564.6±82.12 562.8±29.72 556.2±32.70
Water activity 0 0.854±0.01 0.858±0.01 0.859±0.01 0.860±0.00 0.858±0.01
4 0.831±0.00a 0.835±0.01ab 0.835±0.00ab 0.840±0.00ab 0.834±0.01b
8 0.831±0.03 0.835±0.00 0.836±0.01 0.837±0.01 0.837±0.01
12 0.828±0.01 0.830±0.01 0.829±0.00 0.831±0.01 0.831±0.00
See the preparation of ‘Doenjang’ in Table 1.
Values are mean±SD (n=3).
Means with different letters in the same row are significantly different by Duncan’s multiple range test (p<0.05).