| Source | Xylanase name | Optimal | Stability
| Tolerance
| Reference | Temp (°C) | pH | Temp | pH | Solvent | NaCl salt |
| Microbacterium trichothecenolyticum HY-17 from Gryllotalpa orientalis gut | rXylH | 60 | 9.0 | 55°C, 30% | pH 5.5–10, 80% | ND | ND | [46] |
| Paenibacillus macerans IIPSP3 from termite gut | IIPSP3 | 60 | 4.5 | 90°C, 70% | pH 3.5, 40% pH 9.5, 67% | ND | 10 mM, 119% | [47] |
| Sphingobacterium sp. TN19 from Batocera horsfieldi larvae gut | XynA19 | 45 | 6.5 | 40°C, 90% | ND | ND | 10 mM, 95% | [48] |
| Cellulosimicrobium sp. HY-13 from earthworm gut | XylK | 55 | 6.0 | ND | ND | ND | ND | [49] |
| Massilia sp. RBM26 from Rhinopithecus bieti feces | XynRBM26 | 45 | 5.5 | 30–50°C, 62% | pH 5.5–10.0, 80% | ND | 5 M, 86% | [26] |
| Caldicellulosiruptor bescii from geothermally heated freshwater pool | CbXyn10B | 70 | 7.2 | 60–75°C, 60% | pH 8.0, 50% | ND | ND | [50] |
| Bacteroides xylanisolvens from human gut | XB1A | 37 | 6.0 | 48°C, 80% | pH 9.0, 50% pH 5.0, 50% | ND | ND | [51] |
| Chicken gut metagenome | | 45 | 6.0 | 60°C, 72% | pH 3, 25% pH 8, 70% | 5 M acetone, 98% 5 M ethanol, 86% | 4 M, 96% | This study |
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