Minimum Essential Media (MEM) in Earle’s Buffer

Background

Minimum Essential Media (MEM) in Earle’s 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, MEM is available with Earle’s salts for use in a CO2 incubator, or with Hanks’ salts for use without CO2.

PurMa™ MEM media includes Earle’s Buffer

As the composition of Earle’s buffer, it contains:

  • Calcium chloride
  • Magnesium sulfate
  • Potassium chloride
  • Sodium bicarbonate
  • Sodium chloride
  • Sodium Phosphate, monobasic

PurMa Biologics manufactures 118 types of MEM, it also includes:

  • Low level of glucose (1.00 g/ liter)
  • Sodium bicarbonate (2.2 g/L)
  • 2 mM L-glutamine (292 mg/L)

MEM has 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’s buffer uses a sodium bicarbonate buffer system (2.2 g/L) that requires a 5–10% CO2 environment to maintain physiological pH.

  • Advanced Minimum Essential Media (A-MEM) in EBSS Quick View
  • Advanced Minimum Essential Media (A-MEM) in EBSS Quick View
  • Minimum Essential Media (MEM) in Earle’s Buffer Quick View
  • Minimum Essential Media MAX (MEM-MAX) in Earle’s Buffer Quick View