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Synthesis and Characterization of Biosuperabsorbent Based on Ovalbumin Protein
University of Borås, School of Engineering.
University of Borås, School of Engineering.ORCID iD: 0000-0003-4887-2433
2010 (English)In: Journal of macromolecular science. Pure and applied chemistry (Print), ISSN 1060-1325, E-ISSN 1520-5738, Vol. 47, no 7, p. 708-715Article in journal (Other academic) Published
Abstract [en]

A biosuperabsorbent (Bio-SAP) hydrogel from ovalbumin (egg protein) was synthesized via modification with an acylating reagent and a bifunctional crosslinker, and its swelling behavior was investigated. The protein was acylated using ethylenediaminetetraacetic dianhydride (EDTAD), and then crosslinked by glutaraldehyde and dried. Bio-SAP provided through this method includes modification of lysyl residues in the unfolded protein by adding one or more hydrophilic carboxyl groups to increase the hydrophilicity of protein. The water binding capacity was measured in deionized water, 0.9% NaCl solution and synthetic urine, which under the best conditions were 296, 64 and 56 g/g after 24 h, respectively. In addition, the effects of EDTAD/protein ratio on the chemical modification of the protein, the various chemical neutralization agents, pH sensitivity and ionic strength, as well as temperature and particle size on the water absorption capacity with and without load and its kinetic were also investigated.

Place, publisher, year, edition, pages
2010. Vol. 47, no 7, p. 708-715
Keywords [en]
biosuperabsorbent, ovalbumin protein, chemical modification, crosslink, swelling
Keywords [sv]
Energi och material
National Category
Other Industrial Biotechnology Organic Chemistry
Identifiers
URN: urn:nbn:se:hb:diva-2807DOI: 10.1080/10601325.2010.483399Local ID: 2320/6572OAI: oai:DiVA.org:hb-2807DiVA, id: diva2:870901
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-12-01Bibliographically approved

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Barghi, HamidrezaTaherzadeh, Mohammad J.

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