Enhanced lutein stability under UV-Light and high temperature by loading it into alginate-chitosan complex

dc.contributor.author Xiao, Shulan
dc.contributor.author Ahn, Dong
dc.contributor.department Animal Science
dc.date.accessioned 2022-06-22T18:27:07Z
dc.date.available 2022-06-22T18:27:07Z
dc.date.issued 2022
dc.description.abstract Lutein is one of the carotenoids found in various fruits, green leafy vegetables, and egg yolk. Lutein has multiple functions, including preventing age-related macular degeneration in the human body. However, lutein is susceptible to high temperature, light, and oxygen. The objective of this study was to produce lutein-loaded polysaccharide complexes to increase the stability of lutein. The physical and chemical properties of lutein-polysaccharide complexes were characterized. The entrapment efficiency (EE%) and loading capacity (LC%) of ltuein, and the lutein's stability to high temperatures and UV light were tested. The results showed that the lutein-loaded complexes had greater than 98% entrapment efficiency and 35% loading capacity. The AL/CS complexes showed significantly higher thermal (70 °C, 3 h) and UV-light stabilities than the free lutein. The SEM, FTIR, and XRD results suggested that the lutein-loaded AL/CS complexes had a flake-like structure, and lutein was inserted into the AL/CS complexes as amorphous forms. The main forces that incorporated and stabilized lutein inside the AL/CS complexes were the hydrophobic environments caused by the neutralization of net charge on the alginate and chitosan and the intermolecular hydrogen bonds between lutein, alginate, and chitosan.
dc.description.comments This article is published as Xiao, Shulan, and Dong Uk Ahn. "Enhanced lutein stability under UV-Light and high temperature by loading it into alginate-chitosan complex." LWT 164 (2022): 113663. doi:10.1016/j.lwt.2022.113663. Posted with permission. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/jrl8mP2r
dc.language.iso en
dc.publisher © 2022 Published by Elsevier Ltd.
dc.source.uri https://doi.org/10.1016/j.lwt.2022.113663 *
dc.subject.keywords Lutein
dc.subject.keywords Sodium alginate
dc.subject.keywords Chitosan
dc.subject.keywords Complex
dc.subject.keywords Chemical stability
dc.title Enhanced lutein stability under UV-Light and high temperature by loading it into alginate-chitosan complex
dc.type Article
dspace.entity.type Publication
relation.isAuthorOfPublication d3386101-2f0d-4375-ab44-ac1addb6a9ad
relation.isOrgUnitOfPublication 85ecce08-311a-441b-9c4d-ee2a3569506f
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