Next Article in Journal
Microbial Diseases of Bivalve Mollusks: Infections, Immunology and Antimicrobial Defense
Next Article in Special Issue
Effect of Protonation State and N-Acetylation of Chitosan on Its Interaction with Xanthan Gum: A Molecular Dynamics Simulation Study
Previous Article in Journal
The Roles of Spinochromes in Four Shallow Water Tropical Sea Urchins and Their Potential as Bioactive Pharmacological Agents
Previous Article in Special Issue
Preparation and Characterization of Chitosan Obtained from Shells of Shrimp (Litopenaeus vannamei Boone)
Article

Production of Chitin from Penaeus vannamei By-Products to Pilot Plant Scale Using a Combination of Enzymatic and Chemical Processes and Subsequent Optimization of the Chemical Production of Chitosan by Response Surface Methodology

1
Grupo de Reciclado y Valorización de Materiales Residuales (REVAL), Instituto de Investigacións Mariñas (IIM-CSIC) r/Eduardo Cabello, 6, Vigo 36208, Galicia, Spain
2
Grupo de Bioquímica de Alimentos, Instituto de Investigacións Mariñas (IIM-CSIC) r/Eduardo Cabello, 6, Vigo 36208, Galicia, Spain
*
Author to whom correspondence should be addressed.
Mar. Drugs 2017, 15(6), 180; https://doi.org/10.3390/md15060180
Received: 12 May 2017 / Revised: 5 June 2017 / Accepted: 9 June 2017 / Published: 16 June 2017
(This article belongs to the Special Issue Marine Chitin)
The waste generated from shrimp processing contains valuable materials such as protein, carotenoids, and chitin. The present study describes a process at pilot plant scale to recover chitin from the cephalothorax of Penaeus vannamei using mild conditions. The application of a sequential enzymatic–acid–alkaline treatment yields 30% chitin of comparable purity to commercial sources. Effluents from the process are rich in protein and astaxanthin, and represent inputs for further by-product recovery. As a last step, chitin is deacetylated to produce chitosan; the optimal conditions are established by applying a response surface methodology (RSM). Under these conditions, deacetylation reaches 92% as determined by Proton Nuclear Magnetic Resonance (1H-NMR), and the molecular weight (Mw) of chitosan is estimated at 82 KDa by gel permeation chromatography (GPC). Chitin and chitosan microstructures are characterized by Scanning Electron Microscopy (SEM). View Full-Text
Keywords: chitin; chitosan; Penaeus vannamei shells; response surface methodology; by-products valorization chitin; chitosan; Penaeus vannamei shells; response surface methodology; by-products valorization
Show Figures

Graphical abstract

MDPI and ACS Style

Vázquez, J.A.; Ramos, P.; Mirón, J.; Valcarcel, J.; Sotelo, C.G.; Pérez-Martín, R.I. Production of Chitin from Penaeus vannamei By-Products to Pilot Plant Scale Using a Combination of Enzymatic and Chemical Processes and Subsequent Optimization of the Chemical Production of Chitosan by Response Surface Methodology. Mar. Drugs 2017, 15, 180. https://doi.org/10.3390/md15060180

AMA Style

Vázquez JA, Ramos P, Mirón J, Valcarcel J, Sotelo CG, Pérez-Martín RI. Production of Chitin from Penaeus vannamei By-Products to Pilot Plant Scale Using a Combination of Enzymatic and Chemical Processes and Subsequent Optimization of the Chemical Production of Chitosan by Response Surface Methodology. Marine Drugs. 2017; 15(6):180. https://doi.org/10.3390/md15060180

Chicago/Turabian Style

Vázquez, José A., Patrícia Ramos, Jesús Mirón, Jesus Valcarcel, Carmen G. Sotelo, and Ricardo I. Pérez-Martín. 2017. "Production of Chitin from Penaeus vannamei By-Products to Pilot Plant Scale Using a Combination of Enzymatic and Chemical Processes and Subsequent Optimization of the Chemical Production of Chitosan by Response Surface Methodology" Marine Drugs 15, no. 6: 180. https://doi.org/10.3390/md15060180

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop