Abstract
Several bacterial strains were isolated from soil and water in the current work and screened for glutaminase-free L-asparaginase activity. The selected strain was subjected to the production of glutaminase-free L-asparaginase and thereby purification. Before purification, pH scouting was performed, and 8.6 pH was the optimum working pH to carry out purification. The enzyme was purified using Sephadex G-200 gel filtration chromatography and up to 4.55-folds and its purity percentage was determined using UPLC. The purity of L-asparaginase was determined to be 99.2%. The enzyme was characterized using UV-Visible Spectrophotometer, DLS, ZP, DSC, TGA. The loss of the enzyme was 65% after sublimation, indicating its purity compared to the standard drug. The results report a developed process for the purification of L-asparaginase and its characterization, which can prove instrumental in the purification process of naturally occurring enzymes because today, most developed processes deal with recombinant enzymes.
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