Table 2.
Multi-enzymatic activity of 24Streptomyces spp. strains isolates from lignocellulosic biomasses of Arundo donax, Eucalyptus camaldulensis and Populus nigra.
| Strain | C* | A§ | CE† | P* | X† | AB* | AZ† | L† | AD† |
|---|---|---|---|---|---|---|---|---|---|
| Streptomyces argenteolus AE58P | 40 ± 1.0a | + | − | 22 ± 1.0cd | + | − | − | − | − |
| Streptomyces albolongus AP71X | 36 ± 0.5b | ++ | − | − | ++ | − | − | − | − |
| Streptomyces argenteolus AE82P | 32 ± 0.0c | + | − | 28 ± 0.6a | ++ | − | − | − | − |
| Streptomyces argenteolus AA85A | 32 ± 1.0c | + | − | 26 ± 0.6b | + | − | − | − | − |
| Streptomyces argenteolus AP51A | 32 ± 0.5c | + | − | 26 ± 0.0b | ++ | 20 ± 0.3a | − | − | − |
| Streptomyces rubrogriseus AA74P | 30 ± 0.0d | + | − | 20 ± 1.0ef | + | − | − | − | − |
| Streptomyces fimicarius AA88P | 30 ± 0.6de | + | +/− | 18 ± 0.6f | +/− | − | − | − | − |
| Streptomyces flavogriseus AE53P | 30 ± 0.5d | + | − | 10 ± 0.3l | − | − | − | − | − |
| Streptomyces fimicarius AE73P | 30 ± 0.0d | + | + | 14 ± 1.0i | ++ | − | − | − | − |
| Streptomyces argenteolus AE612P | 30 ± 0.6de | + | − | 22 ± 0.3cd | ++ | − | − | − | − |
| Streptomyces argenteolus AA63A | 30 ± 0.6de | + | + | 28 ± 0.0a | + | − | − | − | − |
| Streptomyces argenteolus AE61P | 30 ± 0.5d | + | − | 20 ± 0.0ef | − | − | − | − | − |
| Streptomyces argenteolus AA64C | 30 ± 0.6de | + | − | 22 ± 1.0cd | + | − | − | − | − |
| Streptomyces fimicarius AE618X | 30 ± 0.0d | + | + | 22 ± 0.5cd | ++ | − | − | − | − |
| Streptomyces ambofaciens AE66P | 30 ± 0.5d | + | +/− | - | +/− | − | − | − | − |
| Streptomyces drozdowiczii AA86P | 28 ± 0.6fg | + | ++ | 22 ± 0.6c | + | − | − | − | − |
| Streptomyces flavogriseus AA62C | 28 ± 0.6fg | + | + | 16 ± 0.6gh | + | − | + | − | − |
| Streptomyces fimicarius AE78P | 28 ± 0.0ef | + | + | 20 ± 1.0ef | ++ | − | − | − | − |
| Streptomyces argenteolus AP71C | 26 ± 0.5gh | + | − | 20 ± 0.6de | + | − | − | − | − |
| Streptomyces argenteolus AE710A | 26 ± 0.0gh | ++ | +/− | 18 ± 0.3fg | + | − | − | − | − |
| Streptomyces flavogriseus AA714A | 26 ± 1.0gh | ++ | + | 10 ± 0.0l | + | − | − | − | − |
| Streptomyces argenteolus AP73A | 24 ± 0.6hi | ++ | + | 22 ± 0.6c | + | − | − | − | − |
| Streptomyces flavogriseus AA72A | 24 ± 0.5i | ++ | − | 16 ± 0.6gh | + | 20 ± 0.5a | − | − | − |
| Streptomyces argenteolus AP64C | 20 ± 0.0l | + | +/− | 16 ± 0.0h | + | − | − | − | − |
Enzymatic activities: C, endo-cellulase; A, exo-cellulase; CE, cellobiase; X, xylanase; P, pectinase; AB, laccase; AZ, peroxidase; L, ligninase with guaiacol and lignin alkali; AD, ligninase with guaiacol and Arundo donax;
*
ICMC oIPEC oILAC index, values represent the means ± SD of three replicates. Different letters after values indicate significant differences (P < 0.05);
§
growth;
†
−negative; + low intensity; ++ middle intensity.