Physicochemical functionality of chimeric isomaltomegalosaccharides with α-(1 â 4)-glucosidic segments of various lengths.
Carbohydr Polym
; 291: 119562, 2022 Sep 01.
Article
in En
| MEDLINE
| ID: mdl-35698333
ABSTRACT
Isomaltomegalosaccharide (IMS) is a long chimeric glucosaccharide composed of α-(1 â 6)- and α-(1 â 4)-linked segments at nonreducing and reducing ends, respectively; the hydrophilicity and hydrophobicity of these segments are expected to lead to bifunctionality. We enzymatically synthesized IMS with average degrees of polymerization (DPs) of 15.8, 19.3, and 23.5, where α-(1 â 4)-segments had DPs of 3, 6, and 9, respectively. IMS exhibited considerably higher water solubility than maltodextrin because of the α-(1 â 6)-segment and an identical resistance to thermal degradation as short dextran. Interaction of IMS with a fluorescent probe of 2-p-toluidinylnaphthalene-6-sulfonate demonstrated that IMS was more hydrophobic than maltodextrin, where the degree of hydrophobicity increased as DP of α-(1 â 4)-segment increased (9 > 6 > 3). Fluorescent pyrene-estimating polarity of IMS was found to be similar to that of methanol or 1-butanol. The bifunctional IMS enhanced the water solubility of quercetin-3-O-glucoside and quercetin the solubilization of less-soluble bioactive substances is beneficial in carbohydrate industry.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Methanol
/
Coloring Agents
Language:
En
Year:
2022
Type:
Article