Abstract
Preparation of magnesium, lanthanum, and bismuth(III) complexes of 3.6 kDa maltodextrin and some properties of the resulting materials are presented. The metal derivatives contain metals bound to the oxygen atoms of the hydroxyl groups of maltodextrin. Additionally, the metal atoms are coordinated to the hydroxyl groups of the D-glucose units of the macroligand. Such coordination stabilized the metal - oxygen bond against hydrolysis, even in boiling water. The presence of magnesium and lanthanum atoms increased the thermal stability of maltodextrin, whereas bismuth atoms decreased it.
Highlights
For over a decade, research has been developed on the utilization of polysaccharides as versatile, biodegradable, renewable sources for chemical industry, replacing mineral resources such as petroleum, coal, and metal ores [1]
The results can be summarized as follows: 1. Maltodextrin formed metal derivatives in which metal atoms were bound with involvement of covalent and coordination bonds
Coordination was responsible for the stability of the metal – oxygen-carbon moiety towards hydrolysis
Summary
Research has been developed on the utilization of polysaccharides as versatile, biodegradable, renewable sources for chemical industry, replacing mineral resources such as petroleum, coal, and metal ores [1]. When bismuth tri(tert-pentoxide) and the D-glucose unit [(HO)2-Glc-OH)] were taken in the 1:1 proportion they could react intramolecularly with involvement of either one or two of its alkoxide functions. The determined weight loss fits very well the value calculated for compound 3 resulting from intermolecular crosslinking of the maltodextrin chains with one molecule of the bismuth reagent.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
