Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
Volume 7, Issue 7, Pages 6492-6496Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b00721
Keywords
Alternative biomass; Chitin nanofibers; Mechanical properties; Mild extraction; Nanopaper; Nonwoven networks
Categories
Funding
- FinnCERES Materials Bioeconomy Ecosystem
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An isolation method with mild mechanical agitation and no acidic extraction step from a mushroom substrate resulted in chitin nanofibers (ChNFs) with large shares of retained glucans (50-65%). The subsequent chitin nanopapers exhibited exceptionally high tensile strengths of >200 MPa and moduli of ca. 7 GPa, which were largely attributed to the preserved glucans in the mixture, imparting a composite nature to the nanopapers. The isolation method for ChNFs is notably different from the conventional process with crustacean chitin sources that do not incorporate glucans and where an acidic extraction step for the removal of minerals must always be included.
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