Adsorption isotherm of amorphous trehalose
The water adsorption isotherm at 25°C of freeze-dried amorphous trehalose and trehalose with the addition of maltodextrin (MD) DE 10.9 was obtained. Moisture uptake as a function of time at various relative humidities (RH) was also measured. At low relative humidities (RH) amorphous trehalose adsorb...
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| Autores principales: | , , |
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| Formato: | JOUR |
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00225142_v75_n2_p183_Iglesias |
| Aporte de: |
| Sumario: | The water adsorption isotherm at 25°C of freeze-dried amorphous trehalose and trehalose with the addition of maltodextrin (MD) DE 10.9 was obtained. Moisture uptake as a function of time at various relative humidities (RH) was also measured. At low relative humidities (RH) amorphous trehalose adsorbs moisture but at 44% RH and above the isotherm exhibits a plateau indicating crystallisation (formation of the dihydrate) of amorphous trehalose and this was reflected on the shape of the isotherm. Trehalose crystallisation was delayed in the system containing maltodextrin (50: 50) as compared with pure trehalose. |
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