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GELRITE®, 500 g

Gelrite® for microbiology
Pack Qty.
Storage temp. +15 to +25 °C
Transport temp. ambient temp.
CAS No. [71010-52-1]
EG-Nr. 275-117-5

Gelling agent for microbiological culture media. Alternative to Agar.
GELRITE® is a highly-purified, natural heteropolysaccharide which forms stable, agar-like gels when exposed to soluble salts.

GELRITE® is a highly-purified, natural heteropolysaccharide which forms stable, agar-like ...
Product details
Type analysis

€278.45/Pack Qty. 

excl. VAT. | 500 g per Pack Qty.

Art. No. 0039.1

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Product details

GELRITE® Gelrite® for microbiology

GELRITE® is a highly-purified, natural heteropolysaccharide which forms stable, agar-like gels when exposed to soluble salts. Compared to agar however, only about half the amount is required.

Advantages over agar:
  • consistent product quality
  • almost 100 % batch-to-batch conformity
  • forms remarkably clear gels
  • reduces preparation time as gels form faster
  • remains stable even at high temperatures and is therefore also ideal for thermophilic microorganisms; gels can withstand repeated autoclaving without any changes to gel strength
  • indicates no toxic contaminations (e.g. through phenols, as found in agar)
  • is chemically inert against most media additives
  • is resistant to enzymatic degradation
  • is non-toxic (no signs of toxicity in rats exposed to a dose of 5.000 mg/kg)
  • is very economical to use

GELRITE® has been specially developed as a gelling agent for microbiological culture media. It can however, replace agar in other applications, too.

Polymerisation of GELRITE® is enhanced in the presence of (bivalent) kations. It is therefore supplemented by MgCl2 if a solid gel structure is required. Elevated salt concentrations increase gelling temperature (e.g. 500 mM Na+ to approx. 68 °C with 1 % GELRITE®). When using very high salt concentrations like e.g. seawater, gelling capacity may be significantly reduced.

Chemical composition:
Linear polysaccharide comprising of O-acetylate glycuronic acid, glucose and rhamnose units.

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0039.1 500 g plastic €278.45
0039.2 1 kg plastic €439.70
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Certificates of Analysis

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The following analysis certificates have been found:

Type analysis

Gel strength400-700 g/cm2  
Loss on drying≤15,0 %  

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