{"id":3026,"date":"2025-03-11T06:26:18","date_gmt":"2025-03-11T06:26:18","guid":{"rendered":"https:\/\/labone.vn\/bacterlab\/?post_type=product&#038;p=3026"},"modified":"2025-04-14T07:58:13","modified_gmt":"2025-04-14T07:58:13","slug":"bactertube-half-fraiser-broth-plates","status":"publish","type":"product","link":"https:\/\/labone.vn\/bacterlab\/en\/product\/bactertube-half-fraiser-broth-plates\/","title":{"rendered":"BacterTube\u2122  Half-Fraiser Broth"},"content":{"rendered":"<p><span style=\"color: #3366ff;\"><strong>INTENDED USE <\/strong><\/span><\/p>\n<ul>\n<li><strong>BacterTube\u2122 Half-Fraiser Broth <\/strong>The <strong>Half Fraser broth<\/strong> is used for selective primary enrichment and detection of <strong><em>Listeria<\/em><\/strong><strong> sp.<\/strong> in food and environmental samples.<\/li>\n<\/ul>\n<p><span style=\"color: #3366ff;\"><strong>PRINCIPLES<\/strong><\/span><\/p>\n<ul>\n<li><strong>BacterTube\u2122 Half-Fraiser Broth <\/strong>is a recovery medium for <em>Listeria monocytogenes<\/em>, ensured by the difference in the concentrations of nalidixic acid and acriflavine between Half-Fraser and Fraser, as well as the two-step enrichment process for <em>Listeria monocytogenes<\/em>. Half Fraser serves as the primary enrichment step, while Fraser Broth is used as the secondary enrichment step.<\/li>\n<li>Polypeptone, yeast extract, and meat extract provide the essential nutrients for the growth of <em>Listeria<\/em>. The high concentration of sodium chloride increases the selectivity of the medium. Phosphates act as a buffer to maintain the pH of the medium. Esculin is hydrolyzed by <em>Listeria<\/em> into glucose and esculetin, and the latter forms a black complex with ferric ions from ferric citrate, which is added just before use to support the growth of <em>Listeria<\/em>. Lithium chloride inhibits the growth of most <em>enterococci<\/em> that hydrolyze esculin. Nalidixic acid prevents DNA replication in bacteria sensitive to this antimicrobial agent. Additionally, Gram-positive bacteria are inhibited by acriflavine.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>The medium used for selective enrichment and differentiation (primary enrichment broth) of <em>Listeria monocytogenes<\/em> and <em>Listeria<\/em> spp.<\/li>\n<li><strong>Code:<\/strong> <strong>08045<\/strong><\/li>\n<li><strong>Packaging:<\/strong> 50 tubes\/ box or as per customer request.<\/li>\n<li><strong>Storage Conditions:<\/strong> 2\u20138\u00b0C.<\/li>\n<li><strong>Transportation:<\/strong> Ambient temperature.<\/li>\n<li><strong>Shelf Life:<\/strong>\u00a06 months from the date of manufacture.<\/li>\n<\/ul>\n","protected":false},"featured_media":3025,"template":"","meta":[],"product_cat":[486],"product_tag":[],"class_list":["post-3026","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-growth-medium"],"_links":{"self":[{"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/product\/3026","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/media\/3025"}],"wp:attachment":[{"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/media?parent=3026"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/product_cat?post=3026"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/labone.vn\/bacterlab\/wp-json\/wp\/v2\/product_tag?post=3026"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}