William's E Medium

  • Advanced Williams’ E Medium

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    Advanced Williams’ E Medium

    Background

    PurMaTM Advanced Williams’ E Medium contains components that allow for a 60–90% reduction in FBS supplementation. More importantly, using synthetic components such as recombinant insulin, albumin, and transferrin increases consistency. This results in less variation amongst lot-to-lot serum changes. In A-Williams’ E, L-Alanyl-L-Glutamine is used as the source of glutamine. Additionally, reducing FBS requirements lowers the cost of cell culture experiments.

    Contents

    Advanced Williams’ E Contains:

    • includes all twenty essential and non-essential amino acids with higher concentrations than regular and MAX formulations.
    • A-Williams’ E 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.
    Consequently, Advanced Williams’ E Medium is a significant step toward a chemically defined form of this media. Unquestionably, Chemically Defined Advanced Williams’ E (CD-A-Williams’ E) is the outcome of decades of cutting-edge research and will soon be offered globally to laboratories that are looking for consistency and repeatability in their data.

    Formulation

    Complete formulation is available: Advanced Williams' E Medium Formulation 

    References

    [/fusion_text][fusion_table fusion_table_type="2" fusion_table_rows="13" fusion_table_columns="2" margin_top="30px" margin_right="" margin_bottom="" margin_left="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" animation_type="" animation_direction="left" animation_color="" hue="" saturation="" lightness="" alpha="" animation_speed="0.3" animation_delay="0" animation_offset=""]
    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
    [/fusion_table][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]1 x 500 ml, 6 x 500 ml, 1 x 1000 ml, 6 x 1000 ml, 1 x 10 L, 1 x 50 L, 10 X 1EZ Individually Packed, 50 X 1EZ Individually Packed Read more
  • William’s E Medium

    [fusion_builder_container type="flex" hundred_percent="no" hundred_percent_height="no" min_height_medium="" min_height_small="" min_height="" hundr... 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    Williams′ Medium E

    Background

    Williams′ Medium E is a modification version of Williams′ Medium D by Williams and Gunn. Although, it is like MEM, but there is difference in glucose as well as amino acid contents.  This media was originally used to isolate and culture primary liver epithelial cells from Epithelial-like cells of fibroblast-like cells culture. It has been shown that this medium is suited for longer term adult primary cell culture.

    PurMa™ William's E Medium is

    • Suited for long term culture.
    • Enriched in amino acids.
    • Double the glucose compared to the original formulation.
    • Moreover, contains unique ingredients, including zinc, iron, manganese, non-essential amino acids, the reducing agent glutathione as well as lipid methyl linoleate

    Moreover, PurMa™ William's E Medium also contains:

    • Low level of glucose (2.00 g/ liter). PurMa Biologics manufacturers the high glucose (4.5 g/L) version of this media as well (Cat #: P3S029880)
    • Although the standard formulation contains 2.2 g/L Sodium bicarbonate, but PurMa Biologics manufacturers the high sodium bicarbonate (3.7 g/L) Williams′ Medium E as well (Cat #: P3S032880)
    • 2 mM L-glutamine (292 mg/L)’
    PurMa Biologics manufactures 112 types of William's E Medium which is certainly the most comprehensive catalog of media. 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. 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 are extremely reasonable. Application of William's E Medium This media has elements supporting long term culturing of primary cells.. It utilizes a bicarbonate buffering system. This media has been used for primary as well as commercial cell lines including: primary liver epithelial cells, HeLa, Jurkat, MCF-7, PC12, PBMC, astrocytes ,carcinomas as well as hybridoma cells. Formulation: The complete formulation is available in formulation tab as well here:William's E Medium Formulation

    References

    1. Isolation and long-term cell culture of epithelial-like cells from rat liver. Williams GM, Weisburger et al. Exp Cell Res. 1971 Nov;69(1):106-12. doi: 10.1016/0014-4827(71)90316-8.
    2. Growth and continuous passage of COMMA-D mouse mammary epithelial cells in hormonally defined serum-free medium. Riss et al. Cancer Res. 1987 Jul 15;47(14):3776-82. PMID: 3297308.
    [/fusion_text][fusion_table fusion_table_type="2" fusion_table_rows="13" fusion_table_columns="2" margin_top="30px" margin_right="" margin_bottom="" margin_left="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" animation_type="" animation_direction="left" animation_color="" hue="" saturation="" lightness="" alpha="" animation_speed="0.3" animation_delay="0" animation_offset=""]
    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
    [/fusion_table][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]1 x 500 ml, 6 x 500 ml, 1 x 1000 ml, 6 x 1000 ml, 1 x 10 L, 1 x 50 L, 10 X 1EZ Individually Packed, 50 X 1EZ Individually Packed Read more
  • Williams’ E Medium – Max

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    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

    [/fusion_text][fusion_table fusion_table_type="2" fusion_table_rows="13" fusion_table_columns="2" margin_top="30px" margin_right="" margin_bottom="" margin_left="" hide_on_mobile="small-visibility,medium-visibility,large-visibility" class="" id="" animation_type="" animation_direction="left" animation_color="" hue="" saturation="" lightness="" alpha="" animation_speed="0.3" animation_delay="0" animation_offset=""]
    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
    [/fusion_table][/fusion_builder_column][/fusion_builder_row][/fusion_builder_container]1 x 500 ml, 6 x 500 ml, 1 x 1000 ml, 6 x 1000 ml, 1 x 10 L, 1 x 50 L, 10 X 1EZ Individually Packed, 50 X 1EZ Individually Packed Read more

Williams′ Medium E

Background

Williams′ Medium E is a modification version of Williams′ Medium. Although it is like MEM, there is differences in glucose as well as amino acid contents.  This media was originally used to isolate and culture primary liver epithelial cells from Epithelial-like cells of fibroblast-like cells culture. It has been shown that it is suited for longer-term adult primary cell culture.

PurMa™ William’s E Medium is

  • Suited for long-term culture.
  • Enriched in amino acids.
  • Also, double the glucose compared to the original formulation.
  • Moreover, contains unique ingredients, including zinc, iron, manganese, non-essential amino acids, the reducing agent glutathione as well as lipid methyl linoleate

Moreover, PurMa™ William’s E Medium also contains:

  • Low level of glucose (2.00 g/ liter). PurMa Biologics manufacturers the high glucose (4.5 g/L) version of this media as well (Cat #: P3S029880)
  • Although the standard formulation contains 2.2 g/L Sodium bicarbonate, PurMa Biologics manufacturers the high sodium bicarbonate (3.7 g/L) Williams′ Medium E as well (Cat #: P3S032880)
  • 2 mM L-glutamine (292 mg/L)’

Moreover, PurMa Biologics makes 112 types of William’s E Medium which is certainly the most comprehensive catalog of 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. our company uses %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 are extremely reasonable.

Application of William’s E-Medium

Additionally, This media has elements supporting the long-term culturing of primary cells. It utilizes a bicarbonate buffering system. it has been used for primary as well as commercial cell lines including primary liver epithelial cells, HeLa, Jurkat, MCF-7, PC12, PBMC, astrocytes, carcinomas as well and hybridoma cells.

Formulation:

The complete formulation is available in the formulation tab as well here: William’s E Medium Formulation

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