Development of Nanostructure in Resistant Starch Type III during Thermal Treatments and Cycling
✍ Scribed by Shiran Zabar; Eyal Shimoni; Havazelet Bianco-Peled
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 270 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1616-5187
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✦ Synopsis
Abstract
The effect of recrystallization temperature on the lamellar structure of RSIII samples was studied using XRD and SAXS. The polymorph type could be manipulated in a controlled manner, independently of the plant source. In RSIII from corn starch and from high‐amylose corn starch, retrogradation at a low temperature led to the formation of polymorph B with lamellas arranged in long‐range periodicity, whereas retrogradation at a high temperature led to the formation of polymorphs A and V with no defined periodicity. The retrogradation temperature of wheat starch did not have a major effect on its nanostructure. For both polymorphs, the enzymatic degradation decreased as the degree of order within the crystal increased.
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