Related Experiment Video
Updated: Jul 5, 2025
Hyperinsulinemic-euglycemic Clamps in Conscious, Unrestrained Mice
Published on: November 16, 2011
Recrystallized resistant starch by encapsulation with konjac glucomannan: Structural changes, digestibility, and its
Ranran Chang1, Zihang Wang2, Lili Fu2
1Institute of Nutrition and Health, Qingdao University, Qingdao 266021, China; School of Public Health, Qingdao University, Qingdao 266021, China; National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China.
Abstract:
The effects of the structure and digestibility of konjac glucomannan (KGM)-recrystallized resistant starch complex (KRS3) on the glycemic response and short-term satiety in mice were investigated. KRS3 samples were prepared by recrystallized debranched starch (RS3) at 50 °C, and then combined with KGM. The RS3 and KRS3 samples displayed an A-type pattern and maintained peak temperature values above 110 °C. With an increase in KGM, the swelling power and apparent viscosity of KRS3 increased. The results of in vitro and in vivo digestion revealed that KRS3 with a resistant starch content ranging from 69.4 % to 78.8 % could effectively maintain postprandial blood glucose levels. KRS3, particularly with 0.5 % KGM, slowed gastric emptying of mice from 82.7 % to 36.6 % and intestinal propulsion rate from 60.9 % to 35.3 %, resulting in strong satiety. RS3 combined with KGM could serve as a new approach to develop RS3 based foods with low glycemic responses and high-satiety.
