{"id":109288,"date":"2024-07-15T15:18:53","date_gmt":"2024-07-15T21:18:53","guid":{"rendered":"https:\/\/purmabiologics.com\/blog\/?post_type=product&#038;p=109288"},"modified":"2026-07-23T10:49:46","modified_gmt":"2026-07-23T16:49:46","slug":"minimum-essential-media-mem-in-earles-buffer","status":"publish","type":"product","link":"https:\/\/purmabiologics.com\/blog\/product\/minimum-essential-media-mem-in-earles-buffer\/","title":{"rendered":"Minimum Essential Media (MEM) in Earle\u2019s Buffer"},"content":{"rendered":"<h2>Background<\/h2>\n<p>Minimum Essential Media (MEM) in Earle\u2019s Buffer is a modification of Basal Medium Eagle (BME) which was originally developed by Harry Eagle. It also includes higher concentrations of amino acids for cultured mammalian cells. Moreover, Minimum Essential Media (MEM) in Earle\u2019s Buffer is available with Earle\u2019s salts for use in a CO2 incubator, or with Hanks&#8217; salts for use without CO2.<\/p>\n<h2>PurMa\u2122 MEM media includes Earle&#8217;s Buffer<\/h2>\n<p>As the composition of Earle&#8217;s buffer, it contains:<\/p>\n<ul>\n<li>Calcium chloride<\/li>\n<li>Magnesium sulfate<\/li>\n<li>Potassium chloride<\/li>\n<li>Sodium bicarbonate<\/li>\n<li>Sodium chloride<\/li>\n<li>Sodium Phosphate, monobasic<\/li>\n<\/ul>\n<h2>PurMa Biologics manufactures 118 types of MEM, it also includes:<\/h2>\n<ul>\n<li>Low level of glucose (1.00 g\/ liter)<\/li>\n<li>Sodium bicarbonate (2.2 g\/L)<\/li>\n<li>2 mM L-glutamine (292 mg\/L)<\/li>\n<\/ul>\n<h2>Why PurMa Biologics? Why we stand behind our cell culture media:<\/h2>\n<p>Our products are the outcome of 30 years of experience in cutting edge science. We routinely manufacture over 1500 media. We have the most comprehensive collection of cell and tissue culture media. Moreover, We utilize %99 pure amino acids. This will significantly increase the consistency among your experiments, and the result of your lab. Considering the highest quality, our prices certainly are extremely reasonable.<\/p>\n<h2>Application:<\/h2>\n<p>Minimum Essential Media (MEM) in Earle\u2019s Buffer\u00a0has been used for cell lines such as HeLa, BHK-21, 293, HEP-2, HT-1080, MCF-7, and fibroblasts as well as primary rat astrocytes. Additionally, MEM in Earle&#8217;s buffer uses a sodium bicarbonate buffer system (2.2 g\/L) that requires a 5\u201310% CO2 environment to maintain physiological pH.<\/p>\n<h2>Formulation<\/h2>\n<p>For detailed formulation visit &#8220;the formulation Tab&#8221; as well as by clicking here: <a href=\"https:\/\/purmabiologics.com\/blog\/wp-content\/uploads\/2023\/06\/MEM-Formulation-in-Earls-Buffer-P3S310122.pdf\" target=\"_blank\" rel=\"noopener\"><strong><span style=\"color: #0000ff;\">MEM Formulation in Earl&#8217;s Buffer<\/span><\/strong><\/a><\/p>\n<h2>References<\/h2>\n<ol>\n<li><span style=\"color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/3401543\/\" rel=\"nofollow noopener\" target=\"_blank\">Culture of granulosa cells in collagen gels: the influence of cell shape on steroidogenesis. <\/a><\/span>Carnegie et al. Biol Reprod. 1988 May;38(4):881-90. doi: 10.1095\/biolreprod38.4.881. PMID: 3401543<\/li>\n<li><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/3654371\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"color: #0000ff;\">Myelin formation in rat dorsal root ganglion cultured in a serum-free medium<\/span>. <\/a>Ninomiya et al. J Anat. 1987 Jun;152:209-13. PMID: 3654371<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<div class=\"table-2\">\n<table width=\"100%\">\n<thead>\n<tr>\n<th align=\"left\">Parameter<\/th>\n<th align=\"left\">Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td align=\"left\">Appearance<\/td>\n<td align=\"left\">Red, clear liquid<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">pH<\/td>\n<td align=\"left\">7.2 \u00b1 0.1<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Osmolality<\/td>\n<td align=\"left\">275-360 mOsm\/L<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Endotoxin<\/td>\n<td align=\"left\">NMT&lt; 2EU\/mL<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Mycoplasma<\/td>\n<td align=\"left\">Negative<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Suitability<\/td>\n<td align=\"left\">\u00a0Suitable for mammalian cell culture<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Additive<\/td>\n<td align=\"left\">N\/A<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Indicator<\/td>\n<td align=\"left\">Phenol red<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Mycoplasma Detection<\/td>\n<td align=\"left\">Negative<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Sterility Tested<\/td>\n<td align=\"left\">Sterile filtered using 0.22 \u00b5m filter<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Form<\/td>\n<td align=\"left\">Liquid<\/td>\n<\/tr>\n<tr>\n<td align=\"left\">Shipping Condition<\/td>\n<td align=\"left\">\u00a0Room temperature<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Minimum Essential Media (MEM) in Earle\u2019s Buffer was originally developed by Harry Eagle. MEM is available with Earle\u2019s salts for use in a CO2 incubator, or with Hanks&#8217; salts for use without CO2.<\/p>\n","protected":false},"featured_media":127440,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[283,603],"product_tag":[581,519,520,682,527,545,683,594,546],"class_list":["post-109288","product","type-product","status-publish","has-post-thumbnail","product_cat-cell-culture-media","product_cat-minimum-essential-media-mem-in-earles-buffer","product_tag-cell-culture","product_tag-earles-buffer","product_tag-ebss","product_tag-glucose","product_tag-mem","product_tag-phenol-red","product_tag-sodium-bicarbonate","product_tag-standard","product_tag-without-phenol-red","entry","has-media","first","instock","sale","taxable","shipping-taxable","purchasable","product-type-variable","has-product-nav","col","span_1_of_4","owp-content-center","owp-thumbs-layout-horizontal","owp-btn-normal","owp-tabs-layout-horizontal","has-no-thumbnails"],"acf":[],"_links":{"self":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product\/109288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/comments?post=109288"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/media\/127440"}],"wp:attachment":[{"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/media?parent=109288"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_brand?post=109288"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_cat?post=109288"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/purmabiologics.com\/blog\/wp-json\/wp\/v2\/product_tag?post=109288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}