{"id":274,"date":"2025-02-11T13:18:11","date_gmt":"2025-02-11T13:18:11","guid":{"rendered":"https:\/\/vingnanam.jfn.ac.lk\/?p=274"},"modified":"2025-02-12T13:35:09","modified_gmt":"2025-02-12T13:35:09","slug":"comparison-of-the-kinetic-properties-of-crude-and-purified-xylanase-from-bacillus-pumilus-with-commercial-xylanase-from-aspergillus-niger","status":"publish","type":"post","link":"https:\/\/vingnanam.jfn.ac.lk\/?p=274","title":{"rendered":"Comparison of the Kinetic Properties of Crude and Purified Xylanase from Bacillus pumilus with Commercial Xylanase from Aspergillus niger"},"content":{"rendered":"<h4>Authors<\/h4>\n<div>\n<div>R Kapilan, V Arasaratnam<\/div>\n<\/div>\n<h4>Abstract<\/h4>\n<div>\n<p class=\"Default\">Xylanases showing better stability at alkaline pH and higher temperatures have potential applications in several industrial processes. The objective of this study is to compare the kinetic properties and stability of crude and purified xylanase from\u00a0<em>Bacillus pumilus\u00a0<\/em>with commercial xylanase from\u00a0<em>Aspergillus niger<\/em>.\u00a0<em>Bacillus pumilus\u00a0<\/em>which can grow and produce xylanase above 40oC and pH 9.0 was selected for this study. Crude, purified and commercial xylanases showed zero order kinetics for 10 minutes and highest activity was obtained at 60\u00b0C and pH 9.0. The optimum pH for crude, purified and commercial xylanases were 9.0, 9.0 and 7.0 respectively at 60\u00b0C and the Michaelis constant by Lineweaver-Burk Plot for xylan were 3.1, 2.3 and 0.03gL<sup>-1<\/sup>\u00a0under the respective optimized conditions. The half-life of the crude and purified xylanase was highest at pH 9.0 and 50\u00b0C while that for the commercial enzyme was at pH 7.0 and at 60\u00b0C.<\/p>\n<\/div>\n<h4>Download<\/h4>\n<p id=\"9abmxfyas2g-d2h5hx2cd0b-jmqy6vx9hpa-mxxqdwvcfof\" class=\"dOmORn gluBBo jwcObW jweaqt iTTIjY\" tabindex=\"-1\"><a href=\"https:\/\/vingnanam.jfn.ac.lk\/wp-content\/uploads\/2025\/02\/10-1-1.pdf\">Article [PDF]<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Authors R Kapilan, V Arasaratnam Abstract Xylanases showing better stability at alkaline pH and higher temperatures have potential applications in several industrial processes. The objective of this study is to compare the kinetic properties and stability of crude and purified xylanase from\u00a0Bacillus pumilus\u00a0with commercial xylanase from\u00a0Aspergillus niger.\u00a0Bacillus pumilus\u00a0which can grow and produce xylanase above 40oC [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[50,46,47,51,49,52,48,45],"class_list":["post-274","post","type-post","status-publish","format-standard","hentry","category-10-1","tag-half-life","tag-kinetic-properties","tag-michaelis-constant","tag-r-kapilan","tag-stability","tag-v-arasaratnam","tag-vmax","tag-xylanase"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=\/wp\/v2\/posts\/274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=274"}],"version-history":[{"count":3,"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=\/wp\/v2\/posts\/274\/revisions"}],"predecessor-version":[{"id":381,"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=\/wp\/v2\/posts\/274\/revisions\/381"}],"wp:attachment":[{"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=274"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=274"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vingnanam.jfn.ac.lk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}