Topic
Endotherm
About: Endotherm is a research topic. Over the lifetime, 117 publications have been published within this topic receiving 4232 citations.
Papers published on a yearly basis
Papers
TL;DR: In this paper, two endothermic transitions are observed by differential scanning calorimetry for potato starch granules when heated in the presence of limited amounts of water (less than 1.5 H2O: starch, w/w), and they are interpreted as the lowering of the melting point of starch crystallites by solvent water.
Abstract: When purified potato starch granules are heated in the presence of limited amounts of water (less than 1.5 H2O: starch, w/w), two endothermic transitions are observed by differential scanning calorimetry. The lower temperature endotherm is always observed at a fixed temperature, 66°C; it is the only endotherm observed when excess water is present. The higher temperature endotherm is observed at increasing temperatures as the water content is decreased. The size of this endotherm decreases with water content. The appearance of the higher temperature endotherm allows the determination of the stoichiometry for full hydration of starch, 14 H2O/hexose unit. The shift of the higher temperature endotherm is interpreted as the lowering of the melting point of starch crystallites by solvent water.
953 citations
TL;DR: In this paper, the melting behavior of isothermally crystallized poly(butylene succinate) (PBS) has been investigated using differential scanning calorimetry (DSC) and wide-angle X-ray analysis.
Abstract: The melting behavior of isothermally crystallized poly(butylene succinate) (PBS) has been investigated using differential scanning calorimetry (DSC) and wide-angle X-ray analysis. The samples crystallized between 80°C to 100°C show middle endotherm at the position just before the high exotherm, while the others under 80°C show two endotherms (low and high). From the results of the melting peak vs. crystallization temperature plot, it was suggested that the middle endotherm corresponds to the melting process of the original crystallites and the high endotherms to the melting process of the recrystallized ones. As the DSC heating rate was increased, the peak temperature of the low and middle endotherms increased and that of the high endotherm decreased, indicating that the low endotherm was due to the original crystallites as well as the middle endotherm. Consequently, in the heating scan of PBS, the existence of two kinds of morphologically different crystallites as well as the process of melting and recrystallization becomes evident. © 1999 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 37: 1357–1366, 1999
272 citations
TL;DR: In this article, the authors observed the endothermic and exothermic processes in thermogelation of whey protein isolate (WPI) as separate transitions in DSC heating traces recorded on a Setaram microcalorimeter.
239 citations
TL;DR: In this paper, the morphological changes which occur when partially crystalline poly(ethylene terephthalate) is annealed were aetected and followed quantitatively using differential scanning calorimetry.
137 citations
TL;DR: In this article, the glass transition temperature of amorphous and native potato starch with 16% moisture was investigated by means of DSC, and it was demonstrated that this endotherm is related to enthalpy relaxation rather than to carbohydrate-water interactions.
110 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 6 |
| 2024 | 6 |
| 2023 | 12 |
| 2022 | 19 |
| 2021 | 7 |
| 2020 | 7 |