Table 1.
Relative enzyme activity (REA)a values produced by Bacillus spp. strains evaluated as enzyme producer candidates.
| Bacillus isolatesb | Amylase | Protease | Lipase | Phytase |
|---|---|---|---|---|
| AM0902 | 1.0 ± 0.00 | 1.0 ± 0.00 | 1.9 ± 0.15 | 1.0 ± 0.00 |
| AM0904 | 5.3 ± 0.19 | 2.7 ± 0.08 | 2.3 ± 0.06 | 1.2 ± 0.07 |
| AM0905 | 5.8 ± 0.44* | 3.0 ± 0.26 | 2.7 ± 0.17 | 1.6 ± 0.24 |
| AM0908 | 5.3 ± 0.06 | 2.1 ± 0.08 | 2.3 ± 0.07 | 1.4 ± 0.10 |
| AM0923 | 5.7 ± 0.19 | 2.8 ± 0.04 | 2.2 ± 0.26 | 1.5 ± 0.02 |
| AM0933 | 5.3 ± 0.21 | 2.3 ± 0.09 | 2.1 ± 0.07 | 1.3 ± 0.07 |
| AM0934 | 4.5 ± 0.18 | 3.1 ± 0.34 | 2.4 ± 0.35 | 1.2 ± 0.08 |
| AM0938 | 5.0 ± 0.50 | 3.4 ± 0.30* | 2.7 ± 0.17 | 2.1 ± 0.08 |
| AM0939 | 3.9 ± 0.12 | 2.9 ± 0.44 | 2.2 ± 0.12 | 1.4 ± 0.13 |
| AM0940 | 5.9 ± 0.27 | 1.8 ± 0.19 | 2.4 ± 0.21 | 1.4 ± 0.12 |
| AM0941 | 1.0 ± 0.00 | 1.7 ± 0.40 | 2.8 ± 0.27 | 2.0 ± 0.12 |
| AM1002 | 6.3 ± 0.12* | 2.8 ± 0.15 | 3.0 ± 0.35* | 2.1 ± 0.11 |
| AM1010 | 5.7 ± 0.16 | 2.1 ± 0.11 | 2.6 ± 0.21 | 1.5 ± 0.12 |
| AM1011 | 4.4 ± 0.30 | 3.0 ± 0.13 | 2.5 ± 0.29 | 1.3 ± 0.10 |
| AM1012 | 6.1 ± 0.18* | 2.5 ± 0.15 | 2.3 ± 0.17 | 1.4 ± 0.02 |
| AM1013 | 4.1 ± 0.08 | 2.3 ± 0.09 | 2.0 ± 0.09 | 1.3 ± 0.05 |
| AM1109A | 2.7 ± 0.27 | 1.8 ± 0.10 | 2.2 ± 0.11 | 1.4 ± 0.11 |
| AM1109B | 1.8 ± 0.42 | 1.0 ± 0.00 | 2.4 ± 0.21 | 1.4 ± 0.07 |
| B2/53 | 4.0 ± 0.64 | 2.7 ± 0.16 | 2.5 ± 0.08 | 1.6 ± 0.05 |
| BL | 2.2 ± 0.13 | 1.0 ± 0.00 | 1.0 ± 0.00 | 1.0 ± 0.00 |
| JD17 | 4.0 ± 0.29 | 2.9 ± 0.20 | 2.6 ± 0.11 | 2.3 ± 0.15* |
| JD19 | 3.4 ± 0.33 | 2.1 ± 0.17 | 2.2 ± 0.12 | 1.5 ± 0.01 |
| NP001 | 4.3 ± 0.19 | 2.3 ± 0.14 | 1.9 ± 0.11 | 1.1 ± 0.04 |
| NP002 | 3.0 ± 0.40 | 2.3 ± 0.29 | 2.1 ± 0.11 | 1.2 ± 0.12 |
| NP117B | 2.7 ± 0.48 | 3.0 ± 0.06 | 2.1 ± 0.14 | 1.3 ± 0.12 |
| NP121 | 3.1 ± 0.46 | 2.2 ± 0.13 | 2.0 ± 0.09 | 1.5 ± 0.14 |
| NP122 | 4.7 ± 0.36 | 2.8 ± 0.40 | 2.3 ± 0.15 | 1.3 ± 0.12 |
| NP124 | 1.6 ± 0.40 | 2.1 ± 0.29 | 2.2 ± 0.12 | 1.1 ± 0.00 |
| NP126 | 3.3 ± 0.23 | 2.5 ± 0.15 | 2.2 ± 0.12 | 1.2 ± 0.07 |
| MM65 | 3.8 ± 0.31 | 1.0 ± 0.00 | 3.0 ± 0.22 | 2.5 ± 0.06* |
| RW41 | 4.2 ± 0.88 | 1.3 ± 0.11 | 2.0 ± 0.04 | 1.2 ± 0.04 |
*Identified bacterial strains as superior enzyme producers with a higher REA value, P < 0.05.
aREA was calculated dividing the diameter of area of clearance by the diameter of the Bacillus colony. Organism were classified as excellent (REA > 0.5), good (REA > 2.0–5.0), or poor (REA < 2.0) enzyme producers. Data expressed as mean ± SE.
bAll Bacillus spp. isolates were tested by triplicate.