Agar Agar

Microbiology.Culture media.
Plant propagation.

Agar agar powders used as gelling agents in microbiological culture media and in vitro plant tissue culture. Explore Bactagar and Plantagar, with properties suited to different culture requirements.

Bactagar · Plantagar

Agar grades for culture media and plant propagation

Product families

Explore the agar agar culture media range

Bactagar for microbiological culture media. Plantagar for plant tissue culture and micropropagation.

Product range overview

Bactagar

Application profile

Bactagar is a range of bacteriological agar agar powders extracted from selected Gelidium sesquipedalis seaweed. The production process reduces agaropectin and salts to limit contaminants that may interfere with microbial growth.

Typical applications

Microbiology
Gelling agent for microbial culture media
Plant culture
In vitro plant tissue culture media

Functional properties

  • Low gelling temperature.
  • High transparency for visual observation.
  • Low calcium, magnesium, sulphates and contaminants.
Discuss Bactagar with our team
Technical overview
Bactagar properties
Seaweed sourceGelidium sesquipedalis
Gelling temperatureLow
High clarity< 10 NTU
Mineral profileLow calcium, magnesium and sulphates

Confirm the selected grade’s specification, clarity test method and culture performance.

Product range overview

Plantagar

Application profile

Plantagar is a technical agar agar for in vitro micropropagation, plant tissue culture and plant cloning. Its extraction process is designed to remove residual acids and bleaching agents.

Also availablePlantgel, a gellan gum grade for plant tissue culture. See gellan gum

Typical applications

Plant culture
In vitro plant tissue culture, micropropagation and plant cloning.

Functional properties

  • Clear gels help identify fungal or bacterial contamination.
  • Low syneresis supports gradual water release.
  • Low levels of salts, soluble ash and insoluble ash.
  • High gel strength supports use at low concentrations.
Discuss Plantagar with our team
Technical overview
Plantagar properties
Gel strength> 1,000 g/cm² at 20 °C · Nikkan
Indicative dosage5.5–8.5 g/L
AppearanceHigh clarity and transparency
Mineral profileLow salts and ash

Confirm current grade specifications, pesticide/herbicide testing and compatibility with the selected nutrient medium. Dosage depends on culture conditions.

Grade selection and dosage depend on the culture medium and preparation conditions. Contact us for current product specifications.

Need help choosing agar for your culture medium?

Discuss your culture medium, preparation conditions and gelling requirements with our team.

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