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Table 2 Urease activity and CaCO3 amount in liquid culture

From: The effect of isolated Bacillus ureolytic bacteria in improving the bio-healing of concrete cracks

Time (min)

EC (mS/m)

Time (days)

CaCO3 (g)

B1

 0

118 ± 0.29f

1

0.50 ± 0.03e

 10

120 ± 0.17e

3

0.79 ± 0.03c

 60

180.4 ± 0.12d

5

0.88 ± 0.01bc

 100

191.5 ± 0.23a

7

1.18 ± 0.06a

B2

 0

112 ± 0.12 h

1

0.60 ± 0.02de

 10

117 ± 0.23 g

3

0.65 ± 0.03d

 60

182 ± 0.29c

5

0.81 ± 0.06c

 100

186 ± 0.58b

7

0.98 ± 0.01b

  1. (a, b, …) Average in the same column having different subscripts are differ significantly (P ≤ 0.05)
  2. EC, Electric conductivity; mS/m, millisiemens/meter; B1, Bacillus wiedmannii; B2: Bacillus paramycoides