Related Experiment Video
Updated: Jan 20, 2026

Rapid High Throughput Amylose Determination in Freeze Dried Potato Tuber Samples
Published on: October 14, 2013
Preparation and properties of potato amylose-based fat replacer using super-heated quenching
Yuying Hu1, Chunmei Li1, Joe M Regenstein2
1College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.
Abstract:
A potato amylose-based fat replacer (PAFR) was prepared using super-heated quenching at different amylose ratios. The effects of amylose ratio on texture attributes, rheological properties, water distribution, and microstructure of PAFR were investigated. The results showed amylose contributed to the gel structure of PAFR, with a positive correlation of G' and G'' with amylose ratio. PAFR with 85% amylose ratio generated better texture attributes and gel properties. The low-field 1H nuclear magnetic resonance (LF-NMR) indicated amylose was advantageous for the tight interaction with water molecules through hydrogen bonds, which then developed a creamy texture of PAFR. In addition, the microstructure changed from a three-dimensional network structure to a lamellar structure, while some spherulites of 2-10 μm diameter, similar to fat globules in size, started to appear with the increasing amylose ratio. This study on amylose impact would provide great insights for future application of fat replacer.
Related Concept Videos
Quantifying Heat
Specific Heat
For example, increasing the temperature of one gram of water by 1°C requires one calorie of heat energy and can be written as 1 cal/g-°C, or...
Heat Flow and Specific Heat
Heating and Cooling Curves
For instance, the addition of heat raises the temperature of a solid; the amount of heat absorbed depends on the heat capacity of the solid (q = mcsolidΔT). According to thermochemistry, the relation between the amount of heat absorbed or released by a substance, q, and its...
Continuous Renal Replacement Therapy
Heat and Free Expansion

