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Updated: Nov 3, 2025

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Published on: February 27, 2021

Optimizing Chitin Depolymerization by Lysozyme to Long-Chain Oligosaccharides.

Arnaud Masselin¹, Antoine Rousseau¹, Stéphanie Pradeau¹

¹Université Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France.

|June 2, 2021

Summary

This summary is machine-generated.

Chitin oligosaccharides (COs) show potential as organic fertilizers. Optimized enzymatic hydrolysis yields high-purity COs, aiding nutrient uptake and plant immunity research.

Keywords:

chemo-enzymatic synthesis chitin oligosaccharides lysozyme response surface methodology

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Published on: January 14, 2020

Area of Science:

Agro-ecology
Biotechnology
Plant Science

Background:

Chitin oligosaccharides (COs) are promising organic fertilizers for sustainable agriculture.
COs influence plant-microorganism symbiosis and nutrient uptake.
Long-chain COs are known to activate plant innate immunity.

Purpose of the Study:

To optimize the production of high-purity chitin oligosaccharides (COs) via enzymatic hydrolysis.
To enable detailed investigation of COs' signaling pathways in plants.

Main Methods:

Enzymatic hydrolysis of water-soluble chitin (WSC) using hen egg-white lysozyme.
Response surface methodology with a Box-Behnken design to model WSC concentration, acetylation degree, and reaction time.
Purification of COs to homogeneity.

Main Results:

Optimized conditions yielded up to nonasaccharide COs with 51% efficiency.
A straightforward method for producing purified COs was established.

Conclusions:

This optimized production method provides access to high-purity COs.
Facilitates further research into the complex roles of COs in plant biological processes.