Williams’ E Medium – Max contains L-Alanyl-L-Glutamine, therefore supplying a longer shelf life while significantly improving cell viability and growth. We manufacture several types of Williams’ E Medium based on your requirements.
Williams’ E Medium – Max
$43.82 – $826.46
Description
Williams’ E Medium – Max
Background
Williams’ E Medium – Max is a commonly used media for Mammalian cell culture.
Advantages
The advantages of Williams’ E Medium – Max over Williams’ E Medium are:
- Higher PH Capacity
- Moreover, it contains 4 mM L-Alanyl-L-Glutamine (0.869 g/L) instead of L-Glutamine and therefore:
- Possess longer shelf life.
- More importantly, minimizes toxic ammonia build-up.
- Significantly improves cell viability and growth.
- Remains stable across a wide range of temperatures.
- Improves the culture of primary cells.
Mechanism
Although L-glutamine is a vital amino acid, it degrades, resulting in the generation of toxic ammonia and pyrrolidine carboxylic acid. One way to minimize L-glutamine degradation in media is to gradually add these amino acids to your cell culture. However, keeping track of time to keep the amount of L-glutamine at the same level is tedious, if not impossible.
Alternatively, L-alanyl-L-glutamine can be used because it is much more stable in aqueous solutions. More importantly, it does not easily degrade and gradually releases aminopeptidases. As a result, L-glutamine and L-alanine are then used by the cells for protein production in the TCA cycle.
In addition to our Max formulation products, we manufacture PurMaTM GluaSup (Cat# P3S210 559) is a combination of L-alanyl-L-glutamine which prevents degradation of L-glutamine.
Contents
Williams’ E Medium – Max contains:
- 5 mM sodium pyruvate
- High glucose (4.5g/L)
- Non-Essential Amino Acids
- 3.7 g/L Sodium Bicarbonate; PurMa Biologics Manufactures several types of William’s E Medium based on the amount of Sodium Bicarbonate and HEPES (PH capacity)
- Phenol Red
Williams’ E Medium – Max contains no proteins, lipids, or growth factors. Therefore, it requires supplementation, commonly with 10% Fetal bovine Serum (FBS).
Formulation
For complete formulation click here: Williams’ E Medium-MAX Formulation
References
- Isolation and long-term cell culture of epithelial-like cells from rat liver. Williams GM, Weisburger EK, Weisburger JH. Exp Cell Res. 1971 Nov;69(1):106-12. doi: 10.1016/0014-4827(71)90316-8. PMID:
- Growth and continuous passage of COMMA-D mouse mammary epithelial cells in hormonally defined serum-free medium. Riss TL, Sirbasku DA. Cancer Res. 1987 Jul 15;47(14):3776-82. PMID: 3297308.
- Primary in vitro antibody responses by purified murine B lymphocytes in serum-free defined medium. Mosier DE. J Immunol. 1981 Oct;127(4):1490-3. PMID: 6792277
Parameter | Specification |
---|---|
Appearance | Red, clear liquid |
pH | 7.2 ± 0.1 |
Osmolality | 275-360 mOsm/L |
Endotoxin | NMT< 2EU/mL |
Mycoplasma | Negative |
Suitability | Â Suitable for mammalian cell culture |
Additive | Sodium pyruvate |
Indicator | Phenol red |
Mycoplasma Detection | Negative |
Sterility Tested | Sterile filtered using 0.22 µm filter |
Form | Liquid |
Shipping Condition | Â Room temperature |
Formulation
Quality Control
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Leibovitz’s L-15 Medium – MAX
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filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0"][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" align_self="auto" content_layout="column" align_content="flex-start" valign_content="flex-start" content_wrap="wrap" spacing="" center_content="no" column_tag="div" link="" target="_self" link_description="" min_height="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" type_medium="" type_small="" order_medium="0" order_small="0" dimension_spacing_medium="" dimension_spacing_small="" dimension_spacing="" dimension_margin_medium="" dimension_margin_small="" margin_top="" margin_bottom="" padding_medium="" padding_small="" padding_top="" padding_right="" padding_bottom="" padding_left="" hover_type="none" border_sizes="" border_color="" border_style="solid" border_radius="" box_shadow="no" dimension_box_shadow="" box_shadow_blur="0" box_shadow_spread="0" box_shadow_color="" box_shadow_style="" z_index_subgroup="regular" z_index="" z_index_hover="" overflow="" background_type="single" gradient_start_color="" gradient_end_color="" gradient_start_position="0" gradient_end_position="100" gradient_type="linear" radial_direction="center center" linear_angle="180" background_color="" background_image="" background_image_id="" lazy_load="none" skip_lazy_load="" background_position="left top" background_repeat="no-repeat" background_blend_mode="none" render_logics="" sticky="off" sticky_devices="small-visibility,medium-visibility,large-visibility" sticky_offset="" absolute="off" absolute_props="" filter_type="regular" filter_hover_element="self" filter_hue="0" filter_saturation="100" filter_brightness="100" filter_contrast="100" filter_invert="0" filter_sepia="0" filter_opacity="100" filter_blur="0" filter_hue_hover="0" filter_saturation_hover="100" filter_brightness_hover="100" filter_contrast_hover="100" filter_invert_hover="0" filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0" transform_type="regular" transform_hover_element="self" transform_scale_x="1" transform_scale_y="1" transform_translate_x="0" transform_translate_y="0" transform_rotate="0" transform_skew_x="0" transform_skew_y="0" transform_scale_x_hover="1" transform_scale_y_hover="1" transform_translate_x_hover="0" transform_translate_y_hover="0" transform_rotate_hover="0" transform_skew_x_hover="0" transform_skew_y_hover="0" transform_origin="" transition_duration="300" transition_easing="ease" transition_custom_easing="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" last="true" border_position="all" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset=""]Leibovitz’s L-15 Medium - MAX
Background
Leibovitz’s L-15 Medium - MAX is one of the commonly used Media for Mammalian cell culture.Advantages
The advantages of Leibovitz’s L-15 MAX over Leibovitz’s L-15 are:
- Higher PH Capacity
- Moreover, it contains 4 mM L-Alanyl-L-Glutamine (0.869 g/L) instead of L-Glutamine and therefore:
- Possess longer shelf life.
- More importantly, minimizes toxic ammonia build-up.
- Significantly improves cell viability and growth.
- Remains stable across a wide range of temperatures.
- Improves the culture of primary cells.
Mechanism
Although L-glutamine is a vital amino acid, it degrades, generating toxic ammonia and pyrrolidine carboxylic acid. Therefore, one way to minimize L-glutamine degradation in media is to gradually add these amino acids to your cell culture. Â Unfortunately, maintaining a consistent level of L-glutamine by tracking time can be a tedious and potentially impossible task. Alternatively, L-alanyl-L-glutamine can be used since it is much more stable in aqueous solutions. More importantly, it does not easily degrade and gradually releases aminopeptidases. As a result, L-glutamine and L-alanine are used by the cells for protein production in the TCA cycle. In addition to our Max formulation products, we manufacture PurMaTM GluaSup (Cat# P3S210 559) is a combination of L-alanyl-L-glutamine that prevents the degradation of L-glutamine.Contents
Leibovitz’s L-15 Medium - MAX contains:
- 5 mM sodium pyruvate
- High glucose (4.5g/L)
- Non-Essential Amino Acids
- 3.7 g/L Sodium Bicarbonate; PurMa Biologics Manufactures several types of Leibovitz’s L-15 MAX based on the amount of Sodium Bicarbonate and HEPES (PH capacity)
- Phenol Red
Formulation
The complete formulation is here: Leibovitz's L-15 MAX FormulationReferences
- The effects of insulin, transferrin and androgens on rat prostate explants in serum-free organ culture. Nguyen-Le XK, Brière N, Corcos J. 1997;6(3):339-49. doi: 10.1002/biof.5520060304. PMID: 9288404.
- Expression of differentiation molecules is preserved in human fetal kidneys during culture. Brière N, Droz D.Acta Histochem. 1990;89(2):157-66. doi: 10.1016/s0065-1281(11)80351-x.PMID: 2093265
Parameter Specification Appearance Red, clear liquid pH 7.2 ± 0.1 Osmolality 275-360 mOsm/L Endotoxin NMT< 2EU/mL Mycoplasma Negative Suitability  Suitable for mammalian cell culture Additive Sodium pyruvate Indicator Phenol red Mycoplasma Detection Negative Sterility Tested Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition  Room temperature Advanced Eagle’s Minimal Essential Medium (A-EMEM)
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filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0"][fusion_builder_row][fusion_builder_column type="1_1" layout="1_1" align_self="auto" content_layout="column" align_content="flex-start" valign_content="flex-start" content_wrap="wrap" spacing="" center_content="no" column_tag="div" link="" target="_self" link_description="" min_height="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" type_medium="" type_small="" order_medium="0" order_small="0" dimension_spacing_medium="" dimension_spacing_small="" dimension_spacing="" dimension_margin_medium="" dimension_margin_small="" margin_top="" margin_bottom="" padding_medium="" padding_small="" padding_top="" padding_right="" padding_bottom="" padding_left="" hover_type="none" border_sizes="" border_color="" border_style="solid" border_radius="" box_shadow="no" dimension_box_shadow="" box_shadow_blur="0" box_shadow_spread="0" box_shadow_color="" box_shadow_style="" z_index_subgroup="regular" z_index="" z_index_hover="" overflow="" background_type="single" gradient_start_color="" gradient_end_color="" gradient_start_position="0" gradient_end_position="100" gradient_type="linear" radial_direction="center center" linear_angle="180" background_color="" background_image="" background_image_id="" lazy_load="none" skip_lazy_load="" background_position="left top" background_repeat="no-repeat" background_blend_mode="none" render_logics="" sticky="off" sticky_devices="small-visibility,medium-visibility,large-visibility" sticky_offset="" absolute="off" absolute_props="" filter_type="regular" filter_hover_element="self" filter_hue="0" filter_saturation="100" filter_brightness="100" filter_contrast="100" filter_invert="0" filter_sepia="0" filter_opacity="100" filter_blur="0" filter_hue_hover="0" filter_saturation_hover="100" filter_brightness_hover="100" filter_contrast_hover="100" filter_invert_hover="0" filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0" transform_type="regular" transform_hover_element="self" transform_scale_x="1" transform_scale_y="1" transform_translate_x="0" transform_translate_y="0" transform_rotate="0" transform_skew_x="0" transform_skew_y="0" transform_scale_x_hover="1" transform_scale_y_hover="1" transform_translate_x_hover="0" transform_translate_y_hover="0" transform_rotate_hover="0" transform_skew_x_hover="0" transform_skew_y_hover="0" transform_origin="" transition_duration="300" transition_easing="ease" transition_custom_easing="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" last="true" border_position="all" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset=""]Advanced Eagle’s Minimal Essential Medium (A-EMEM)
Background
PurMaTM Advanced Eagle’s Minimal Essential Medium (A-EMEM) contains components that allow for a 60–90% reduction in FBS supplementation. More importantly, using synthetic components such as recombinant insulin, albumin, and transferrin increase consistency. This results in less variation amongst lot-to-lot serum changes. In A-EMEM, L-Alanyl-L-Glutamine is used as the source of glutamine. Additionally, reducing FBS requirements lowers the cost of cell culture experiments.Contents
Advanced EMEM Contains:
- includes all twenty essential and non-essential amino acids with higher concentrations than regular and MAX formulations.
- A-EMEM incorporates elements that significantly reduce the need for a serum for cell culture.
Crucial Ingredients:
- PurMaTM Human Transferrin (Holo): prevents Improper iron storage and delivery in cell culture systems which is a major contributor to oxidative stress and protein damage.
- PurMaTM Insulin Recombinant
- Trace of other elements which mimic the elements in fetal bovine serum.
Formulation
Complete formulation is available here: Advanced EMEM FormultaionReferences
- Immunization and culture of rainbow trout organ sections in vitro. Anderson DP, Dixon OW, Lizzio EF. Vet Immunol Immunopathol. 1986 Jun;12(1-4):203-11. doi: 10.1016/0165-2427(86)90124-8. PMID:
- Human plasma and amino acids as moderators of uptake and metabolic consequences of antifolates in WIL-2 and human leukemia cells. Fyfe MJ, Sedwick WD, Brown OE, Laszlo J. J Natl Cancer Inst. 1981 Mar;66(3):445-51. PMID:
Parameter Specification Appearance Red, clear liquid pH  7.2 ± 0.1 Osmolality  275-360 mOsm/L Endotoxin  NMT< 2EU/mL Mycoplasma Negative Suitability  Suitable for mammalian cell culture Additive  Sodium pyruvate Indicator  Phenol red Mycoplasma Detection Negative Sterility Tested  Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition  Room temperature Minimum Essential Media (MEM) In Hanks’ Buffer
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box_shadow_style="" z_index_subgroup="regular" z_index="" z_index_hover="" overflow="" background_type="single" gradient_start_color="" gradient_end_color="" gradient_start_position="0" gradient_end_position="100" gradient_type="linear" radial_direction="center center" linear_angle="180" background_color="" background_image="" background_image_id="" lazy_load="none" skip_lazy_load="" background_position="left top" background_repeat="no-repeat" background_blend_mode="none" render_logics="" sticky="off" sticky_devices="small-visibility,medium-visibility,large-visibility" sticky_offset="" absolute="off" absolute_props="" filter_type="regular" filter_hover_element="self" filter_hue="0" filter_saturation="100" filter_brightness="100" filter_contrast="100" filter_invert="0" filter_sepia="0" filter_opacity="100" filter_blur="0" filter_hue_hover="0" filter_saturation_hover="100" filter_brightness_hover="100" filter_contrast_hover="100" filter_invert_hover="0" filter_sepia_hover="0" filter_opacity_hover="100" filter_blur_hover="0" transform_type="regular" transform_hover_element="self" transform_scale_x="1" transform_scale_y="1" transform_translate_x="0" transform_translate_y="0" transform_rotate="0" transform_skew_x="0" transform_skew_y="0" transform_scale_x_hover="1" transform_scale_y_hover="1" transform_translate_x_hover="0" transform_translate_y_hover="0" transform_rotate_hover="0" transform_skew_x_hover="0" transform_skew_y_hover="0" transform_origin="" transition_duration="300" transition_easing="ease" transition_custom_easing="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset="" last="true" border_position="all" first="true"][fusion_text columns="" column_min_width="" column_spacing="" rule_style="" rule_size="" rule_color="" hue="" saturation="" lightness="" alpha="" content_alignment_medium="" content_alignment_small="" content_alignment="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" sticky_display="normal,sticky" class="" id="" margin_top="" margin_right="" margin_bottom="" margin_left="" fusion_font_family_text_font="" fusion_font_variant_text_font="" font_size="" line_height="" letter_spacing="" text_transform="" text_color="" animation_type="" animation_direction="left" animation_color="" animation_speed="0.3" animation_delay="0" animation_offset=""]Minimum Essential Media (MEM) In Hanks’ Buffer
Background
Minimum Essential Media (MEM) In Hanks’ Buffer is a modification of Basal Medium Eagle . It was originally developed by Harry Eagle for specific requirements of certain subtypes. Additionally, it includes higher concentrations of amino acids which is more suitable for cultured mammalian cells. Moreover, PurMa Biologics manufactures MEM with Earle’s buffer for use in a CO2 incubator, or with Hanks' salts for use without CO2.PurMa™ MEM media in Hank’s buffer includes Hank's buffer
Hanks buffer, it contains:- Potassium Chloride
- Potassium Phosphate, monobasic
- Sodium Bicarbonate
- Sodium Chloride
- Sodium Phosphate, dibasic
Additionally, MEM in Hanks’ Buffer contains:
- Low level of glucose (1.00 g/ liter)
- Sodium bicarbonate (0.35 g/L). If , however, higher than 5% CO2 is used, a higher % of sodium bicarbonate is needed.
- 2 mM L-glutamine (292 mg/L)
Why PurMa Biologics? Why we stand behind our cell culture media
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. Considering the highest quality, our prices certainly are extremely reasonable.Applications
MEM has been used for the cultivation of a wide variety of cells grown in monolayers attached or in suspension cell lines such as HeLa, BHK-21, 293, HEP-2, HT-1080, MCF-7, and fibroblasts as well as primary rat astrocytes. MEM contains no proteins, lipids, or growth factors. Therefore, MEM requires supplementation, commonly with 10% fetal bovine serum (FBS).Formulation
Complete formulation click here as well as in Formulation Tab: MEM (HBSS) Formulation in Hanks' BufferReferences
- Culture of granulosa cells in collagen gels: the influence of cell shape on steroidogenesis. Carnegie et al. Biol Reprod. 1988 May;38(4):881-90. doi: 10.1095/biolreprod38.4.881. PMID: 3401543
- Myelin formation in rat dorsal root ganglion cultured in a serum-free medium. Ninomiya et al. J Anat. 1987 Jun;152:209-13. PMID: 3654371
Parameter Specification Appearance Red, clear liquid pH 7.2 ± 0.1 Osmolality 275-360 mOsm/L Endotoxin NMT< 2EU/mL Mycoplasma Negative Suitability  Suitable for mammalian cell culture Additive N/A Indicator Phenol red Mycoplasma Detection Negative Sterility Tested Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition  Room temperature Basal Medium Eagle-MAX (BME-MAX) in Earle’s Buffer
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Background
Basal Medium Eagle-MAX (BME-MAX) in Earle’s Buffer is a commonly used media for Mammalian cell culture.Advantages
The advantages of BME-MAX over BME are:
- Higher PH Capacity
- Moreover, it contains 4 mM L-Alanyl-L-Glutamine (0.869 g/L) instead of L-Glutamine and therefore:
- Possess longer shelf life.
- More importantly, minimizes toxic ammonia build-up.
- Significantly improves cell viability and growth.
- Remains stable across a wide range of temperatures.
- Improves the culture of primary cells.
Mechanism
Although L-glutamine is a vital amino acid, it degrades, generating toxic ammonia and pyrrolidine carboxylic acid. One way to minimize L-glutamine degradation in media is to gradually add these amino acids to your cell culture. However, keeping track of time to keep the amount of L-glutamine at the same level is tedious, if not impossible. Alternatively, L-alanyl-L-glutamine can be used because it is much more stable in aqueous solutions. More importantly, it does not easily degrade and gradually releases aminopeptidases. As a result, L-glutamine and L-alanine are then used by the cells for protein production in the TCA cycle. In addition to our Max formulation products, we manufacture PurMaTM GluaSup (Cat# P3S210 559) is a combination of L-alanyl-L-glutamine that prevents degradation of L-glutamine.Contents
Basal Medium Eagle-MAX (BME-MAX) in Earle’s Buffer contains:
- 5 mM sodium pyruvate
- High glucose (4.5g/L)
- Non-Essential Amino Acids
- 3.7 g/L Sodium Bicarbonate; PurMa Biologics Manufactures several types of BME-MAX in EBBS based on the amount of Sodium Bicarbonate and HEPES (PH capacity)
- Phenol Red
Formulation
The complete formulation can be found here: BME-MAX with Earl's Buffer FormulationReferences
- Improved chemically defined basal medium (CMRL-1969) for primary monkey kidney and human diploid cells. Healy GM, et al. Appl Microbiol. 1971 Jan;21(1):1-5. doi: 10.1128/am.21.1.1-5.1971. PMID:
- Nutritional requirements for the production of herpes simplex virus. I. Influence of glucose and glutamine of herpes simplex virus production by HeLa cells. LEWIS VJ Jr, SCOTT LV. J Bacteriol. 1962 Mar;83(3):475-82. doi: 10.1128/jb.83.3.475-482.1962. PMID: 14464909
- An improved culture system for secondary palatal elevation. Lewis CA, et al. In Vitro. 1980 Jun;16(6):453-60. doi: 10.1007/BF02626457. PMID: 7390537
Parameter Specification Appearance Red, clear liquid pH 7.2 ± 0.1 Osmolality 275-360 mOsm/L Endotoxin NMT< 2EU/mL Mycoplasma Negative Suitability  Suitable for mammalian cell culture Additive N/A Indicator Phenol red Mycoplasma Detection Negative Sterility Tested Sterile filtered using 0.22 µm filter Form Liquid Shipping Condition  Room temperature Title
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