Compost-derived thermophilic microorganisms producing glycoside hydrolase activities as new potential biocatalysts for sustainable processes

Chemical and Biological Technologies in Agriculture

Table 2 Glycoside hydrolase (GH) activities (expressed as U mg⁻¹) detected through nitrophenyl glycosides in the extracellular ammonium-sulphate precipitates PP(NH₄)₂SO₄, cytosolic and cell-bound fractions of isolates

Units of GH activities, expressed as µmol of p-NP released under the assay conditions. 1 = p-nitrophenyl α-d-galactopyranoside; 2 = p-nitrophenyl β-d-galactopyranoside; 3 = o-nitrophenyl α-d-galactopyranoside; 4 = o-nitrophenyl β-d-galactopyranoside; 5 = p-nitrophenyl α-d-glucopyranoside; 6 = p-nitrophenyl β-d-glucopyranoside; 7 = o-nitrophenyl β-d-glucopyranoside, 8 = p-nitrophenyl α-d-maltoside; 9 = p-nitrophenyl β-d-maltoside; 10 = p-nitrophenyl α-l-arabinofuranoside; 11 = p-nitrophenyl α-l-arabinopyranoside; 12 = p-nitrophenyl β-d-xylopyranoside; 13 = p-nitrophenyl β-d-cellobioside; 14 = o-nitrophenyl β-d-cellobioside; 15 = p-nitrophenyl β-d-lactopyranoside. All values are averages of two determinations.