2020
DOI: 10.1088/1755-1315/515/1/012029
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Moisture Sorption Isotherm and Isosteric Heat of Dried Cabya (Piper retrofractum Vahl) Powder

Abstract: Cabya (Piper retrofractum Vahl) is a widely utilized herbal plant for Indonesian traditional medicine. Up to date, the commonly applied storage method for this plant is in dried form, and makes it less effective for distribution process and less attractive for consumers preference, i.e. consumers usually prefers to consume herbal product in powdered form. In the attempt to provide an optimized storage condition of dried cabya powder, the study was conducted to analyze the sorption isotherm behavior of dried ca… Show more

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Cited by 4 publications
(4 citation statements)
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“…The values of EMC for desorption were higher than those for adsorption at constant water activity, this behavior was an indication of the appearance of hysteresis phenomenon and it was noticed for other pharmaceuticals [13,16,18,28]. Fig.…”
Section: -Results and Discussionmentioning
confidence: 56%
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“…The values of EMC for desorption were higher than those for adsorption at constant water activity, this behavior was an indication of the appearance of hysteresis phenomenon and it was noticed for other pharmaceuticals [13,16,18,28]. Fig.…”
Section: -Results and Discussionmentioning
confidence: 56%
“…During desorption, the pores were saturated at the beginning then water diffusion occurred from the periphery to the surface and that when the partial pressure of the water vapor in the surrounding air became lower than the vapor pressure inside the capillary. The value of hysteresis is the difference of equilibrium moisture content between desorption and adsorption [14,15,16].…”
mentioning
confidence: 99%
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“…The moisture sorption isotherm is generated when the relationship between relative humidity (related to the water activity (a w ) of the material at the equilibrium state) of the environment and equilibrium moisture content (EMC) of the food is expressed in graphical format with fixed temperature [2] . For desorption processes, moisture inside materials evaporates to the atmosphere with low a w and for adsorption processes, materials uptake moisture from the atmosphere with high a w .…”
Section: Introduction mentioning
confidence: 99%