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Title: Alternative Sweeteners

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242 Embuscado and Patil<br />

Figure 3 Sorption isotherms of (A) erythritol and (B) sucrose at 25°C (Courtesy of VTI<br />

Corporation, FL). ——, Adsorption; ◊- -◊, desorption.<br />

when the relative humidity was increased from 5–95% and then back to 5% in<br />

5% steps. Erythritol went into solution above 90% relative humidity, whereas<br />

sucrose did at a lower relative humidity (around 84%). To determine the exact<br />

deliquescence point, erythritol was exposed to relative humidities between 88–<br />

94% in a stepwise fashion. Results show that erythritol starts to deliquesce between<br />

92–94% relative humidities. When erythritol was exposed to decreasing<br />

relative humidities, the sample lost most of its moisture, especially when the<br />

relative humidity reached 85%. The adsorption and desorption isotherm profile<br />

of erythritol is quite different from that of sucrose (Fig. 3). As the relative humidity<br />

was reduced to 75%, sucrose lost some of the moisture it absorbed at higher<br />

relative humidity. At about 75% relative humidity, the moisture content of su-

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