Popular gel matrix agent for plant tissue culture applications. Produces a high transparent gel. It is stable over a wide pH range and compatible to many media.
Gellan requires divalent cations like Ca
2+ to form a stable gel. If media with very low Ca
2+-concentration is used (like a MS-modification with 10 % macroelement strength), the replacement of gellan with agar is preferrable.
The formation and mechanical properties of a gellan gel is dependent from the pH. An increased pH leads to reduced junction zone formations and a decrease in molecular aggregation, reducing gel rigidity, but increasing gel deformability due to higher mobility of the strands. Low pH values lead to a higher complex viscosity (Picone & Cunha 2011).
Recommended dosage: 2 g/l, depending to the desired gel strength.
| Item information |
Value |
| GHS-Pictograms: |
00 |
| CAS-Number: |
71010-52-1 |
| EG-Number: |
275-117-5 |
| Synonyms: |
Gellan gum, Low-acyl gellan. |
| References: |
Picone, C. S. F., & Cunha, R. L. (2011). Influence of pH on formation and properties of gellan gels. Carbohydrate Polymers, 84(1), 662-668. |
| Storage Temperature: |
15 - 25 °C |
| Aussehen: |
Weißes Pulver |
| Aggregatzustand: |
Fest |
| Gelstärke: |
Min. 800 g/cm2 (je nach Medium) |
| Trocknungsverlust: |
≤ 16 % |
| Transparenz: |
Min. 85 % |
| Lagerung: |
RT |
| Autoklavierbar: |
Ja |
Technische Daten
| Molare Masse (M): |
1000 kg/mol |
| pH Wert: |
7 |
| >Geliertemperatur: |
27 - 32 °C * |
|
| CAS-Nr.: |
71010-52-1 |
| EG-Nr.: |
275-117-5 |
The newest safety datasheets or certificate of analysis (CoA) can get requested by using our contact form. They also can be requested during the order process or directly per mail via [email protected].
