Modification of chitin structure with tailored ionic liquids

Małgorzata Maria Jaworska , Izabela Stępniak , Maciej Galiński , Dawid Kasprzak , Dorota Biniaś , Andrzej Górak

Abstract

Chitin, poly N-acetylglucosamine, has a great potential for use on an industrial scale as an enzyme carrier but it has an unfavorable particle structure that can be modified using ionic liquids (ILs). Several ionic liquids were investigated that have the same substituents on the ring (methyl- and propyl-) but differed in the type of cationic ring (pyrrolidinium, piperidinium, and piperazinium). Organic acid ions (acetic and lactic) were used as counter ions. 1-ethyl-3-methyl-imidazolium acetate and 1-ethyl-3-methyl-imidazolium lactate were used as a reference. The results confirm that the chitin particle structure or size, or both, simultaneously changes if chitin is dissolved in an IL and then precipitated. Organic acid anions and short substituents on the cationic ring of ILs influenced particle modification substantially, whereas the type of ring played a minor role. Additionally, the ionic liquids [MPpyrr][OAc], [MPpip][OAc] and [DMPpz][OAc] could be reused up to at least 4 times without losing their ability to dissolve chitin.
Author Małgorzata Maria Jaworska (FCPE / DBBE)
Małgorzata Maria Jaworska,,
- Department of Biotechnology and Bioprocess Engineering
, Izabela Stępniak
Izabela Stępniak,,
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, Maciej Galiński
Maciej Galiński,,
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, Dawid Kasprzak
Dawid Kasprzak,,
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, Dorota Biniaś
Dorota Biniaś,,
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, Andrzej Górak
Andrzej Górak,,
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Journal seriesCarbohydrate Polymers, ISSN 0144-8617, (A 40 pkt)
Issue year2018
Vol202
Pages397-403
Publication size in sheets0.5
Keywords in Englishchitin, ionic liquid, organic acids, structure, particle size
ASJC Classification2505 Materials Chemistry; 2507 Polymers and Plastics; 1605 Organic Chemistry
DOIDOI:10.1016/j.carbpol.2018.09.012
URL https://reader.elsevier.com/reader/sd/pii/S0144861718310762?token=FC25355712049F41C660CBCDCDD280ADB496682B3BBEDB289C5B812378207386D5F46DAF6065EF34A5D636119237D900
Languageen angielski
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Jaworska M.M. (i in.) - Modification of chitin...pdf 964.14 KB
Score (nominal)40
ScoreMinisterial score = 40.0, 08-05-2019, ArticleFromJournal
Ministerial score (2013-2016) = 40.0, 11-03-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.745; WoS Impact Factor: 2017 = 5.158 (2) - 2017=5.326 (5)
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