Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications

This review describes the most common methods for recovery of chitin from marine organisms. In depth, both enzymatic and chemical treatments for the step of deproteinization are compared, as well as different conditions for demineralization. The conditions of chitosan preparation are also discussed,...

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Main Authors: Islem Younes, Marguerite Rinaudo
Format: Article
Language:English
Published: MDPI AG 2015-03-01
Series:Marine Drugs
Subjects:
Online Access:http://www.mdpi.com/1660-3397/13/3/1133
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author Islem Younes
Marguerite Rinaudo
author_facet Islem Younes
Marguerite Rinaudo
author_sort Islem Younes
collection DOAJ
description This review describes the most common methods for recovery of chitin from marine organisms. In depth, both enzymatic and chemical treatments for the step of deproteinization are compared, as well as different conditions for demineralization. The conditions of chitosan preparation are also discussed, since they significantly impact the synthesis of chitosan with varying degree of acetylation (DA) and molecular weight (MW). In addition, the main characterization techniques applied for chitin and chitosan are recalled, pointing out the role of their solubility in relation with the chemical structure (mainly the acetyl group distribution along the backbone). Biological activities are also presented, such as: antibacterial, antifungal, antitumor and antioxidant. Interestingly, the relationship between chemical structure and biological activity is demonstrated for chitosan molecules with different DA and MW and homogeneous distribution of acetyl groups for the first time. In the end, several selected pharmaceutical and biomedical applications are presented, in which chitin and chitosan are recognized as new biomaterials taking advantage of their biocompatibility and biodegradability.
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spelling doaj.art-a993fd80a66b41c5bd393aaf2cf65d982022-12-22T03:19:07ZengMDPI AGMarine Drugs1660-33972015-03-011331133117410.3390/md13031133md13031133Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and ApplicationsIslem Younes0Marguerite Rinaudo1Laboratory of Enzyme Engineering and Microbiology, University of Sfax, National School of Engineering, PO Box 1173-3038, Sfax, TunisiaBiomaterials Applications, 6 rue Lesdiguières, Grenoble 38000, FranceThis review describes the most common methods for recovery of chitin from marine organisms. In depth, both enzymatic and chemical treatments for the step of deproteinization are compared, as well as different conditions for demineralization. The conditions of chitosan preparation are also discussed, since they significantly impact the synthesis of chitosan with varying degree of acetylation (DA) and molecular weight (MW). In addition, the main characterization techniques applied for chitin and chitosan are recalled, pointing out the role of their solubility in relation with the chemical structure (mainly the acetyl group distribution along the backbone). Biological activities are also presented, such as: antibacterial, antifungal, antitumor and antioxidant. Interestingly, the relationship between chemical structure and biological activity is demonstrated for chitosan molecules with different DA and MW and homogeneous distribution of acetyl groups for the first time. In the end, several selected pharmaceutical and biomedical applications are presented, in which chitin and chitosan are recognized as new biomaterials taking advantage of their biocompatibility and biodegradability.http://www.mdpi.com/1660-3397/13/3/1133chitinchitosanchemical and enzymatic deproteinizationdemineralizationcharacterizationdeacetylationbiological activitiesbiomedical applications
spellingShingle Islem Younes
Marguerite Rinaudo
Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications
Marine Drugs
chitin
chitosan
chemical and enzymatic deproteinization
demineralization
characterization
deacetylation
biological activities
biomedical applications
title Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications
title_full Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications
title_fullStr Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications
title_full_unstemmed Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications
title_short Chitin and Chitosan Preparation from Marine Sources. Structure, Properties and Applications
title_sort chitin and chitosan preparation from marine sources structure properties and applications
topic chitin
chitosan
chemical and enzymatic deproteinization
demineralization
characterization
deacetylation
biological activities
biomedical applications
url http://www.mdpi.com/1660-3397/13/3/1133
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