Glucosyl Rubusosides by Dextransucrases Improve the Quality of Taste and Sweetness
Related Experiment Video
Updated: Mar 26, 2026

Taste Preference Assay for Adult Drosophila
Published on: September 8, 2016
Jin-A Ko1, Young Bae Ryu1, Ji-Young Park1
1Eco-Friendly Bio-material Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea.
Abstract:
Glucosyl rubusosides were synthesized by two dextransucrases. LcDexT was obtained from Leuconosotoc citreum, that LlDexT was obtained from Leuconostoc lactis. LcDexT and LlDexT regioselectively transferred a glucosyl residue to the 13-O-glucosyl moiety of rubusoside with high yield of 59-66% as analyzed by TLC and HPLC. Evaluation of the sweetness of these glucosyl rubusosides showed that their quality of taste, in particular, was superior to that of rubusoside. These results indicate that transglucosylation at the 13-O-glucosyl moiety of rubusoside by different regioselective dextransucrases can be applicable for increasing its sweetness and quality of taste.
Related Concept Videos
Glucose Transporters
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Taste Buds and Receptors
Oligosaccharide Assembly
Multiple sugar molecules that may or may...
Oral Hypoglycemic Agents: α-Glucosidase Inhibitors
Acarbose and miglitol are...
Biosynthesis of Polysaccharides
Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by...

