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DC Field | Value | Language |
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dc.citation.endPage | 145 | - |
dc.citation.startPage | 137 | - |
dc.citation.title | CARBOHYDRATE POLYMERS | - |
dc.citation.volume | 157 | - |
dc.contributor.author | Kim, Ji Hyun | - |
dc.contributor.author | Park, Saerom | - |
dc.contributor.author | Kim, Hyungsup | - |
dc.contributor.author | Kim, Hyung Joo | - |
dc.contributor.author | Yang, Yung-Hun | - |
dc.contributor.author | Kim, Yong Hwan | - |
dc.contributor.author | Jung, Sang-Kyu | - |
dc.contributor.author | Kan, Eunsung | - |
dc.contributor.author | Lee, Sang Hyun | - |
dc.date.accessioned | 2023-12-21T22:41:39Z | - |
dc.date.available | 2023-12-21T22:41:39Z | - |
dc.date.created | 2016-10-21 | - |
dc.date.issued | 2017-02 | - |
dc.description.abstract | Alginate/bacterial cellulose nanocomposite beads, with well-controlled size and regular spherical shapes, were prepared in a simple manner by entrapping Gluconacetobacter xylinus in barium alginate hydrogel beads, followed by cultivation of the entrapped cells in culture media with a low sodium ion concentration. The entire surface of the alginate hydrogel beads containing the cells was covered with cellulose fibers (∼30 nm) after 36 h of cultivation. The cellulose crystallinity index of the alginate/bacterial cellulose beads was 0.7, which was slightly lower than that of bacterial cellulose prepared by cultivating dispersed cells. The water vapor sorption capacity of the alginate/bacterial cellulose beads increased significantly from 0.07 to 38.00 (g/g dry bead) as cultivation time increased. These results clearly indicate that alginate/bacterial cellulose beads have a much higher surface area, crystallinity, and water-holding capacity than alginate beads. The immobilization of lipase on the surface of the nanocomposite beads was also investigated as a potential application of this system. The activity and specific activity of lipase immobilized on alginate/bacterial cellulose beads were 2.6- and 3.8-fold higher, respectively, than that of lipase immobilized on cellulose beads. The alginate/bacterial cellulose nanocomposite beads prepared in this study have several potential applications in the biocatalytic, biomedical, and pharmaceutical fields because of their biocompatibility, biodegradability, high crystallinity, and large surface area. | - |
dc.identifier.bibliographicCitation | CARBOHYDRATE POLYMERS, v.157, pp.137 - 145 | - |
dc.identifier.doi | 10.1016/j.carbpol.2016.09.074 | - |
dc.identifier.issn | 0144-8617 | - |
dc.identifier.scopusid | 2-s2.0-84989160265 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/20648 | - |
dc.identifier.url | http://www.sciencedirect.com/science/article/pii/S0144861716311304 | - |
dc.identifier.wosid | 000391896800017 | - |
dc.language | 영어 | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Alginate/bacterial cellulose nanocomposite beads prepared using Gluconacetobacter xylinus and their application in lipase immobilization | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Applied; Chemistry, Organic; Polymer Science | - |
dc.relation.journalResearchArea | Chemistry; Polymer Science | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Alginate | - |
dc.subject.keywordAuthor | Bacterial cellulose | - |
dc.subject.keywordAuthor | Nanocomposite | - |
dc.subject.keywordAuthor | Bead | - |
dc.subject.keywordAuthor | Lipase | - |
dc.subject.keywordAuthor | Immobilization | - |
dc.subject.keywordPlus | BACTERIAL CELLULOSE | - |
dc.subject.keywordPlus | ENZYME IMMOBILIZATION | - |
dc.subject.keywordPlus | ACETOBACTER-XYLINUM | - |
dc.subject.keywordPlus | ALGINATE | - |
dc.subject.keywordPlus | COMPOSITE | - |
dc.subject.keywordPlus | ETHANOL | - |
dc.subject.keywordPlus | SCAFFOLDS | - |
dc.subject.keywordPlus | HANSENII | - |
dc.subject.keywordPlus | HYDROGEL | - |
dc.subject.keywordPlus | RELEASE | - |
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