2.4.2.6	-20°C, purified recombinant enzyme, 1 mg/ml, at least 1 year without loss of activity	
2.4.2.6	-20°C, purified recombinant His-tagged enzyme, 180 days, about 23% activity remaining	
2.4.2.6	-50°C, stable for several months either in the lyophilized form or disolved in freshly distilled water	
2.4.2.6	-80°C, purified recombinant His-tagged enzyme, 180 days, about 23% activity remaining	
2.4.2.6	4°C, purified recombinant His-tagged enzyme, 180 days, 85% activity remaining	
2.4.2.6	4°C, the recombinant immobilized enzyme can be stored during almost 3 months without activity loss. When storage stability at 4°C s evaluated, Ni2+-Gx-LaNDT retains full activity for more than 78 days, whereas Ni2+-LaNDT is inactive after 65 days	
2.4.2.6	50°C, Ni2+-Gx-LaNDT biocatalyst is stable after 250 h of incubation at 50°C, a condition in which the ionic biocatalyst released part of its enzymatic charge during the first 6 h of incubation