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Table 3 The percentage of endotoxins and proteins present after the adsorption process

From: Purification and biocompatibility of fermented hyaluronic acid for its applications to biomaterials

  Endotoxin (initial: 67.44 EU/Mℓ) Proteins (initial 77.73 μg/Mℓ) Remark
Adsorbents (2%) Residual (EU/Mℓ) Removal (%) Residual (μg/Mℓ) Removal (%)  
Darco KB-B 7.89 88.30 2.82 96.37 -
Norit CN1 6.70 90.07 2.01 97.41 -
Norit C Extra USP 5.40 91.99 2.09 97.32 -
Norit A Supra EUR 6.34 90.60 2.67 96.57  
Norit SX Plus - - - - Colors
Norit SX 1G - - - - Colors
Norit C Gran - - - - No filtration
Norit GAC 1240+ - - - - Metal corrosion
Alumina 0.20 99.70 9.41 87.89% -
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