10.1371/journal.pone.0104056.g002 Sheryl Lozel Arreola Sheryl Lozel Arreola Montira Intanon Montira Intanon Jasmina Suljic Jasmina Suljic Roman Kittl Roman Kittl Ngoc Hung Pham Ngoc Hung Pham Paul Kosma Paul Kosma Dietmar Haltrich Dietmar Haltrich Thu-Ha Nguyen Thu-Ha Nguyen pH stability of the β-galactosidases from <i>B. breve</i> β-gal I (•) and β-gal II (○) incubated at 37°C in Britton-Robinson buffer over a pH range of pH 5.0–9.0 for 4 h (solid lines) and 10 h (dashed lines). Public Library of Science 2014 Biochemistry enzymology enzymes hydrolases Glycoside hydrolases Enzyme chemistry Enzyme kinetics genetics gene expression ii incubated britton-robinson buffer ph 10 2014-08-04 03:13:37 Figure https://plos.figshare.com/articles/figure/_pH_stability_of_the_galactosidases_from_B_breve_gal_I_and_gal_II_incubated_at_37_C_in_Britton_Robinson_buffer_over_a_pH_range_of_pH_5_0_9_0_for_4_h_solid_lines_and_10_h_dashed_lines_/1126884 <p>The residual activity was measured after 4(B) and <i>o</i>NPG was used as substrate for the enzyme assay. Values are the mean of two independent experiments and the standard deviation was always less than 5%.</p>