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Phase transitions of the starch–water system
Abstract
When purified potato starch granules are heated in the presence of limited amounts of water (less than 1.5 H 2 O: 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 H 2 O/hexose unit. The shift of the higher temperature endotherm is interpreted as the lowering of the melting point of starch crystallites by solvent water.
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Citations
Cited by
Hoover, R. (2001) · Carbohydrate Polymers · doi:10.1016/s0144-8617(00)00260-5 · Cited by 1,483
Warren, F. J., Gidley, M. J., & Flanagan, B. M. (2016) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2015.11.066 · Cited by 931
Banana starch: Production, physicochemical properties, and digestibility—A review
Zhang, P., Whistler, R. L., BeMiller, J. N., & Hamaker, B. R. (2005) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2004.10.014 · Cited by 516
Functionality of Porous Starch Obtained by Amylase or Amyloglucosidase Treatments
Dura, A., Błaszczak, W., & Rosell, C. M. (2014) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2013.10.013 · Cited by 256
Porosity and pore size distribution of starch materials
Karathanos, V. T., & Saravacos, G. D. (1993) · Journal of Food Engineering · doi:10.1016/0260-8774(93)90090-7 · Cited by 133
Metadata
- Authors
- Donovan, J. W.
- Venue
- Biopolymers
- Publisher
- Wiley
- Published
- 1979-02
- Volume
- 18
- Issue
- 2
- Pages
- 263-275
- ISSN
- 0006-3525 (ISSN-L)
- 1097-0282
- OpenAlex
- W2089871320
- Cited by
- 957
- References
- 0
- FWCI
- 9.04
- Type
- journal article
- Language
- en
- Open access
- closed
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