Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/46495

TitleOptimization of high purity chitin and chitosan production from Illex argentinus pens by a combination of enzymatic and chemical processes
Author(s)José, V. A.
Noriega, D.
Ramos, P.
Valcarcel, J.
Novoa-Carballal, R.
Pastrana, L.
Reis, R. L.
Ricardo, P. M. I.
KeywordsChitin
Chitosan
Illex argentinus
Illex argentinus pen
Response surface methodology
By-products valorization
Issue dateOct-2017
PublisherElsevier
JournalCarbohydrate Polymers
CitationJosé V. A., Noriega D., Ramos P., Valcarcel J., Novoa-Carballal R., Pastrana L., Reis R. L., Ricardo P. M. I. Optimization of high purity chitin and chitosan production from Illex argentinus pens by a combination of enzymatic and chemical processes, Carbohydrate Polymers, Vol. 174, pp. 262-272, doi:10.1016/j.carbpol.2017.06.070, 2017
Abstract(s)The present report illustrates the optimisation of the experimental conditions for the chemical and enzymatic production of chitin and chitosan from Illex argentinus pen by-products. Optima conditions for chitin isolation were established at 0.82 M NaOH/36.4 °C, 57.5 °C/pH = 9.29, 59.6 °C/pH = 9.30 and 49.6 °C/pH = 5.91 for chemical, alcalase, esperase and neutrase deproteinization, respectively. Chitin samples were subsequently deacetylated by alkaline treatment reaching the highest degrees of deacetylation (DD > 93%) at 61.0–63.7% of NaOH and 14.9–16.4 h of hydrolysis depending on the type of process previously performed to the squid pens. Molecular weight (as number average molecular weight, Mn) of chitosan produced in the experimental designs ranged from 143 kDa (PDI 2.37) to 339 kDa (PDI 2.38).
TypeArticle
URIhttp://hdl.handle.net/1822/46495
DOI10.1016/j.carbpol.2017.06.070
ISSN0144-8617
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0144861717307087
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:3B’s - Artigos em revistas/Papers in scientific journals

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