The Chemistry of Polymers group (ECP) is delighted to be hosting a seminar:
Christophe COLLEONI
Structural and Functional Glycobiology Unit (UGSF), University of Lille
Monday 22 April 2024
at 11:30 am
Sorbonne University
Pierre et Marie Curie campus
Tower 43-53, room 522
« Exploring the diversity of microalgae to gain insight
into the evolution of beta-glucans »
Abstract :
Photosynthetic organisms contribute significantly to the capture and sequestration of atmospheric CO2 by synthesizing various polymers. Some of these polymers, such as starch, cellulose, and their derivatives, have already established their value in the foundation of multiple bio-based industries with numerous applications. However, the increasing challenges related to climate change, energy crises, and freshwater scarcity have raised concerns about the sustainability of agriculturally sourced bio-based polymers. In this context, we currently explore the metabolic pathways of storage polysaccharides in the diverse range of fresh and marine microalgae. Particular attention is being given to beta-glucans, which are homopolymers of glucose linked by O-glycosidic bonds in beta-1,3 and/or beta-1,6. Like alpha-polysaccharides (i.estarch and glycogen), beta-glucans exist in soluble- and insoluble-water forms and serve as storage polysaccharides in diverse marine and freshwater algae. Despite their prevalence in algae, the metabolic pathways and their potential industrial applications remain largely unexplored. By studying these pathways and their evolution, we aim to gain new insights and possible applications for beta-glucans in various industries.
Contact IPCM :
Patrice Castignolles