Dynamic water sorption for the study of amorphous content of vacuum-dried honey powder

Comparison of crystallized coconut sugar produced by traditional method and amorphous coconut sugar formed by two drying methods: vacuum drying and spray drying

“…T g is a change observed when a glassy state is turning into a super-cooled melt during heating 3 , while sucrose has T g of 62°C and considered low when it comes to drying 4 To overcome this problem, the glass transition temperature of the coconut sap can be increased by the addition of a coating material having a higher glass transition temperature than sucrose. Maltodextrin (MD) is a carbohydrate derivative mostly used as drying aid of high sugar material 5 Glass transition temperature of MD depends on dextrose equivalent (DE) value, often in range of 140-180°C 6 MD with DE 10 with T g of 112°C is considered a better material to maintain stability compared to other materials such as trehalose 7 MD may also increase process stability and storage of solid food to reduce caking, stickiness, and increasing ability to flow 8 Addition of MD ≥ 50% (solid/solid, w/w)) is needed to create a significant impact on glass transition temperature. [9,10] Despite the use of high molecular material, in order to successfully dry high sugar material, the rate of drying process should be high 5 This can be accomplished by vacuum drying and spray drying method.…”

“…Maltodextrin (MD) is a carbohydrate derivative mostly used as drying aid of high sugar material 5 Glass transition temperature of MD depends on dextrose equivalent (DE) value, often in range of 140-180°C 6 MD with DE 10 with T g of 112°C is considered a better material to maintain stability compared to other materials such as trehalose 7 MD may also increase process stability and storage of solid food to reduce caking, stickiness, and increasing ability to flow 8 Addition of MD ≥ 50% (solid/solid, w/w)) is needed to create a significant impact on glass transition temperature. [9,10] Despite the use of high molecular material, in order to successfully dry high sugar material, the rate of drying process should be high 5 This can be accomplished by vacuum drying and spray drying method. Vacuum drying is a process in which the material is dried in a lowpressure environment, which lowers the heat required for rapid drying 11 Based on ideal gas law, at low absolute pressure (vacuum conditions), water can evaporate at a lower temperature than normal conditions (ambient pressure, 1 atm).…”

Amelioration in physicochemical properties and single cell performance of sulfonated poly(ether ether ketone) block copolymer composite membrane using sulfonated carbon nanotubes for intermediate humidity fuel cells

“…DVS is a technique capable of measuring mass changes in materials in an extremely controlled environment with excellent accuracy. It has been widely used in investigating the sorption and desorption properties of materials to explore, hydrate, and solvate formations, determining the amorphous contents in pharmaceutical materials, etc . Briefly, RH was raised in 10 steps (that is 10% ramp/step) from 0 to 95% RH.…”

“…It has been widely used in investigating the sorption and desorption properties of materials to explore, hydrate, and solvate formations, determining the amorphous contents in pharmaceutical materials, etc. 25,26 Briefly, RH was raised in 10 steps (that is 10% ramp/step) from 0 to 95% RH. The equilibration parameter set was 0.0005%/min for the rate of mass change per unit time (dm/dt).…”

Acquisition of Sorption and Drying Data with Embedded Devices: Improving Standard Models for High Oleic Sunflower Seeds by Continuous Measurements in Dynamic Systems

“…However, the sorption experiments were realized with discontinuous weight measurements on external balances or with balances inside the test chamber [9,10]. To minimize the negative effects associated with the discontinuous weight measurements, instruments using controlled atmosphere microbalances such as a Dynamic Vapor Sorption apparatus (DVS) have been employed for the automated moisture sorption analysis of food ingredients and other homogenous materials [11][12][13][14][15][16][17]. The DVS method is used to measure the equilibrium moisture content of a material at any desired relative humidity and selected temperatures in a short period of time.…”