Chitin
is widely distributed in nature, being the main structural component of the
exoskeleton of
crustaceans and is non-toxic, biodegradable and
biocompatible. The present work exploits the
extraction of the chitosan from chitin that is present
in the exoskeletons of shrimps Litopenaeus
vannamei and crabs Ucides
cordatus and transforms it into high valued products. One example is
the
manufacture of nanomembranes from chitosan for the
application in medical textiles.
Nanomembranes using electrospinning of chitosan solutions
(7% and 5 wt%) with 100:0 v/v
(TFA/DCM) and 70:30 v/v (TFA/DCM) were produced.
Morphological properties of chitin and chitosan
were studied using SEM, DRX, and ther-mal properties
through TG/DTG and molecular structure by
FTIR analysis. TG/DTG showed thermal decomposition of
chitosan samples. X-ray diffraction analysis
indicated the semi-crystalline structure of chitosan,
and highly crystalline structure for chitin.
Morphologies of the nanomembranes were also observed
from scanning electron micrographs.
Results showed that the nanomembranes with 5% chitosan
solutions with 70:30 v/v (TFA/DCM)
showed facilitation in the formation of the
nanomembranes. With positive results obtained, the present
work will help the authorities to organize the
fishermen to have consciousness in the collection of
exoskeleton waste as well as helping to have a better
environment.
Author
(s) Details
Sânia M. B. de Andrade
Post-Graduate
Program in Mechanical Engineering, Federal University of Rio Grande do Norte,
Natal, Brazil.
Rasiah
Ladchumananandasivam
Post-Graduate Program in Mechanical Engineering, Federal
University of Rio Grande do Norte, Natal, Brazil.
Brismak G. da Rocha
Post-Graduate
Program in Mechanical Engineering, Federal University of Rio Grande do Norte, Natal,
Brazil.
Débora D. Belarmino
Post-Graduate Program in Mechanical Engineering, Federal University
of Rio Grande do Norte, Natal, Brazil.
Alcione O. Galvão
Post-Graduate Program in Mechanical Engineering, Federal University
of Rio Grande do Norte, Natal, Brazil.
View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/250
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