Related Experiment Video
Updated: Feb 4, 2026

Treating SCA1 Mice with Water-Soluble Compounds to Non-Specifically Boost Mitochondrial Function
Published on: January 22, 2017
Characteristics of granular cold-water-soluble potato starch treated with alcohol and alkali
Ye-Jin Choi1, Moo-Yeol Baik1, Byung-Yong Kim1
1Department of Food Science and Biotechnology, Kyung Hee University, Yongin, Gyeonggi 17104 Korea.
Abstract:
The characteristics of cold-water-soluble potato starch (CWSS) produced using alcoholic-alkaline treatment were determined using scanning electron microscopy, rapid visco analysis (RVA), X-ray diffraction, differential scanning calorimetry, storage modulus (G'), loss modulus (G″), and gel images. Scanning electron microscopy revealed a damaged crystalline structure when CWSS was suspended in ethanol. The RVA analysis of native starch showed a peak value of viscosity at high temperatures, whereas the viscosity of CWSS did not show such a peak. The DSC diagram of native starch showed a gelatinization peak temperature; however, no such peak was observed for CWSS. Cold-water solubility tremendously increased in CWSS owing to the loss of crystallinity. The values of G' and G″ in CWSS decreased with increasing temperature; the opposite was observed for normal potato starch. These results indicate that alcoholic-alkaline treatment affects the starch structure and produces totally different physicochemical properties from native starch; this makes CWSS feasible for use in a variety of food materials.
Related Concept Videos
Alkali Metals
Table 1: Properties of the alkali metals
Solubility of Ionic Compounds
Solubility Equilibria: Ionic Product of Water
The ionic product of water varies with temperature, and its value is 1.0 x 10−14 at standard experimental conditions. Per Le...
Physical Properties Affecting Solubility
As for any solution, the solubility of a gas in a liquid is affected by the attractive intermolecular forces between solute and solvent species. Unlike solid and liquid solutes, however, there is no solute-solute intermolecular attraction to overcome when a gaseous solute dissolves in a liquid solvent since the atoms or molecules comprising a gas are far separated and experience negligible interactions. Consequently, solute-solvent interactions are the sole...
Factors Affecting Solubility
Solubility Equilibria
The...

