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Agar Granulated

Cena brutto: 632,22 zł
Cena netto: 514,00 zł
500 g
Kod produktu:



Purified agar with excellent properties for tissue culture and microbiological work. The granulated presentation allows convenient weighing and handling without the mess of powders. Agar is a natural hydrocolloid extracted from several species of red algae, mainly the Gelidium, Gracilaria and  Pterocladia types. It is a gelling agent used in the preparation of culture media and other bacteriological applications.
The main advantage of this agar is the absence of inhibitors, which could interfere in microorganisms´ growth. It has excellent transparency, high hysteresis and very reliable reproducibility. Each batch produced is thoroughly tested for biological performance against a battery of known bacterial cultures in order to ensure proper growth characteristics and absence of inhibitors.

CAS number: 9002-18-0


  • Appearance: White cream powder
  • Moisture: Less than 10%
  • Ashes: ≤ 4.5%
  • Gel strength (1.5%, Nikan): 800 –1100 g/cm2
  • pH (1.5%) before autoclaving: 7.0 ± 0.4
  • pH (1.5%) after autoclaving: 6.5 ± 0.4
  • Melting point (1.5%): 85 ± 5 °C
  • Gelling point (1.5%): 35 ± 3 °C
  • Transparency (1.5%): ≤ 12 NTU
  • Colorimetry (absorbance) 450 nm: ≤ 0.200
  • Particle size: 95% Over sieve 60

Rate of use: It is used in concentrations from 1.2% to 1.6%

Microbial test

  • Standard plate count: Less than 3000 cfu/g
  • Yeasts and molds: Less than 100 cfu/g
  • Coliforms: Less than 3 cfu/g
  • E.coli: Negative
  • Salmonella: Negative

Soluble in: water

Storage: Store at room temperature. Once opened, keep powdered medium closed to avoid hydration.
The dehydrated Agar should be homogeneous, free flowing and beige in color.

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