Carbohydr Polym 2020 Dec 6;250:116859. Epub 2020 Aug 6.
Department of Food Science, Purdue University, West Lafayette, IN, 47907, United States; Whistler Center for Carbohydrate Research, West Lafayette, IN, 47907, United States. Electronic address:
Fluorescence emissions of molecular rotors (MRs) are affected by local restrictions to molecular motion, and therefore it was considered that MRs can be used as structural probes of biopolymers. In this study, 9-(2-carboxy-2-cyanovinyl)-julolidine (CCVJ), a hydrophilic MR, was used to differentiate branched α-D-glucans, including amylopectin, phytoglycogen, and their β-limit dextrins. CCVJ emissions of glucan dispersions were correlated with dispersion viscosities and glucan branch structures. Read More