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Table 1 Specification of support materials and their immobilization efficiencies

From: Purification and immobilization of engineered glucose dehydrogenase: a new approach to producing gluconic acid from breadwaste

Support Material

Type of support

Surface functional group

Immobilization type

Particle size (µm)

Surface area (m2/g)

Pore diameter (nm)

Immobilization efficiency (%)

ECR8309F

Amino C2 methacrylate

NH2 (short spacer)

Covalent or ionic

150–300

70–220

60–120

59 ± 10

ECR1090M

Macroporous styrene

None

Adsorption/hydrophobic interaction

300–700

750–850

90–110

76 ± 16

ECR1030M

DVB/Methacrylate

None

Adsorption/hydrophobic interaction

300–700

80–120

20–30

73 ± 11

MM-SBA-15-300

Hierarchical porous silica

None

Adsorption/entrapment

100–300a

350–380

290–300 (4.4b)

98 ± 2

MM-SBA-15-200

Hierarchical porous silica

None

Adsorption/entrapment

100–300a

270–300

240–250 (3.9b)

98 ± 2

  1. aParticle size determined by SEM analysis
  2. bMesopores determined from N2 porosimetry by BJH analysis