Related Experiment Video
Updated: Jan 23, 2026

Analysis and Specification of Starch Granule Size Distributions
Published on: March 4, 2021
In vitro digestibility of rice starch granules modified by β-amylase, transglucosidase and pullulanase
1State Key Laboratory of Biobased Material and Green Papermaking, School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China.
Abstract:
It is highly desirable to lower the glycemic index of rice starch-based foods. Herein, rice starch granules were treated sequentially with β-amylase (BA), transglucosidase (TG) and pullulanase (PUL). The results indicated that compared with native rice starch and PUL-modified starch, degree of crystallinity, gelatinization temperature and enthalpy of BA/TG/PUL-modified starches increased remarkably. Moreover, the functionality of BA/TG/PUL-treated starch depended enormously on TG treatment time. BA/TG/PUL-modified starch possessed the highest relative crystallinity, gelatinization temperatures and gelatinization enthalpy and the content of resistant starch at TG treatment time of 20 h and the resistant crystals were formed largely from linear chains with DP 9-11. Whether before cooking or after cooking, BA/TG/PUL-modified starches had strong resistance to enzyme hydrolysis and had lower glycemic index. This outcome may offer a novel sight for the exploitation of starch-based functional foods with low glycemic index.
More Related Videos
09:43Author Spotlight: Streamlining Rice Breeding with CRISPR/Cas for Obtaining Optimal Phenotypic and Agronomic Traits
Published on: January 3, 2025
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
Related Concept Videos
Carbohydrate Digestion
What is Monogastric Digestion?
Lipid Digestion
Protein Digestion
Regulation of the Digestive System
The effectors in this regulation system are glands and smooth muscles. Activation of...
Other Disorders of Digestive System