Complex of butyric acid with the amorphous region of starch granules via high-pressure processing
Related Experiment Video
Updated: Sep 13, 2025

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
Amy Hui-Mei Lin1, Shaun Yong Jie Sim2, Choy Eng Nge2
1Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), 31 Biopolis Way, Nanos #01-02, Singapore 138669, Republic of Singapore; Institute of Food Science and Technology, National Taiwan University, Taipei 10617, Taiwan, Republic of China.
Abstract:
This study investigates the potential of high-pressure processing (HPP) to promote butyric acid entrapment within maize, pea, and potato starch granules. Starch treated at 600 MPa and 5 °C exhibited partial gelatinization and increased amorphous content, as confirmed by microscopy, solid-state nuclear magnetic resonance (NMR), and differential scanning calorimetry (DSC). Butyric acid was incorporated at 4.1 % (maize), 5.2 % (pea), and 4.8 % (potato) by dry weight, p < .05, with no evidence of ordered complexation structures in X-ray diffraction analysis. A broad DSC endothermic peak (102-145 °C) indicated continuous weak interactions. These findings suggest that HPP partially disrupts native starch architecture, enabling non-covalent interactions within amorphous domains. The resulting pressure-modified starches may function as delivery systems for short-chain fatty acids, offering potential applications in cold-gelatinizing starches and controlled-release formulations for bioactive compounds.
More Related Videos
05:22Transverse Sectioning of Mature Rice Oryza sativa L. Kernels for Scanning Electron Microscopy Imaging Using Pipette Tips as Immobilization Support
Published on: January 25, 2022
06:57Rapid High Throughput Amylose Determination in Freeze Dried Potato Tuber Samples
Published on: October 14, 2013
Related Concept Videos
Carbohydrate Digestion
Oligosaccharide Assembly
Multiple sugar molecules that may or may...
Chemistry of Carbohydrates
Esters to Carboxylic Acids: Acid-Catalyzed Hydrolysis
During hydrolysis, the ester is first activated towards nucleophilic attack through the protonation of the carboxyl oxygen atom by the acid catalyst. The protonation makes the ester carbonyl carbon more electrophilic. In the next step, water acts as a nucleophile and adds to the...