Abstract
Lysozyme from Filipino venus (Ruditapes philippinarum) was purified by ion-exchange and gel filtration chromatography. The purification fold and yield were 3,402 and 32.4%, respectively. The molecular weight was determined to be 13.4 kDa by SDS-PAGE. The specific activity of lysozyme was 3.76×105 units/mg protein with Micrococcus lysodeikticus as a substrate. The optimum temperature and pH of lysozyme were 75°C and 5.5, respectively. Lysozyme activity was decreased with about 45% after heat treatment for 30 min at 80°C, and completely inactivated at 100°C. It was activated by NaCl (10–70 mM), MgCl2, and CaCl2 (2–5 mM) whereas it was inhibited by ZnCl2 (2–30 mM).
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Kim, M., Park, M. & Jeong, Y. Purification and characterization of lysozyme from filipino venus, Ruditapes philippinarum . Food Sci Biotechnol 21, 1463–1468 (2012). https://doi.org/10.1007/s10068-012-0193-z
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DOI: https://doi.org/10.1007/s10068-012-0193-z