NDLI: Characterization and In Vitro Evaluation of Cytotoxicity, Antimicrobial and Antioxidant Activities of Chitosans Extracted from Three Different Marine Sources

Content Provider	Springer Nature Link
Author	Hajji, Sawssen Younes, Islem Rinaudo, Marguerite Jellouli, Kemel Nasri, Moncef
Copyright Year	2015
Abstract	Chitins in the α and β isomorphs were extracted from three Tunisian marine sources shrimp (Penaeus kerathurus) waste, crab (Carcinus mediterraneus) shells and cuttlefish (Sepia officinalis) bones. The obtained chitins were transformed into chitosans, the acid-soluble form of chitin. Chitosans were characterized and their biological activities were compared. Chitosan samples were then characterized by Fourier transform infrared spectroscopy (FTIR). The results showed that all chitosans presented identical spectra. Antimicrobial, antioxidant, and antitumor activities of the extracted chitosans were investigated. In fact, cuttlefish chitosan showed the highest DPPH radical-scavenging activity (83 %, 5 mg/ml), whereas it was 79 % and 76 % for shrimp and crab chitosans, respectively. However, in linoleate−β−carotene system, cuttlefish and crab chitosans exerted higher antioxidant activity (82 % and 70 %, respectively), than shrimp chitosan (49 %). Chitosans were tested for their antimicrobial activities against three Gram-negative and four Gram-positive bacteria and five fungi. Chitosans markedly inhibited growth of most bacteria and fungi tested, although the antimicrobial activity depends on the type of microorganism and on the source of chitin. In addition, chitosans showed high antitumor activity which seemed to be dependent on the chitosan characteristics such as acetylation degree and especially the molecular weight.
Starting Page	18
Ending Page	35
Page Count	18
File Format	PDF
ISSN	02732289
Journal	Applied Biochemistry and Biotechnology
Volume Number	177
Issue Number	1
e-ISSN	15590291
Language	English
Publisher	Springer US
Publisher Date	2015-07-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chitin Chitosan Antitumor Antimicrobial Antioxidant activity Biotechnology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Biology Environmental Engineering Biochemistry Bioengineering Applied Microbiology and Biotechnology Biotechnology

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