Electrospun core-shell nanofibers based on interfacial modification by sodium caseinate of zein/pullulan bilayer emulsion | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Electrospun core-shell nanofibers based on interfacial modification by sodium caseinate of zein/pullulan bilayer emulsion Yang Li, Junjie Weng, Meiyu Chen, Yucheng Zou, Hui Zhang This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7901663/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted 12 You are reading this latest preprint version Abstract In this study, electrospun core-shell nanofibers composed of zein and pullulan were fabricated by using bilayer emulsions, with sodium caseinate added as the emulsifier. The findings demonstrated that emulsions gained notable robustness after sodium caseinate was introduced. As the proportion of sodium caseinate rose, both the apparent viscosity and the elastic modulus of zein/pullulan emulsions registered a concurrent uptick, which resulted in the average diameter of electrospun fibers gradually increasing from 405.6 nm (Z1SC0P1) to 704.8 nm (Z1SC40%P1). Furthermore, the electrospun nanofibers added sodium caseinate showed higher water stability, thermal stability, and mechanical properties. The encapsulation efficiency of flaxseed oil in the electrospun nanofiber film reached 86.21% and had good storage stability. Besides, the coated flaxseed oil could be slowly released from the emulsion electrospinning core-shell fiber and maintain its antioxidant activity. This work yields critical guidance for entrapping hydrophobic actives in core–shell zein-based nanofibers fabricated via emulsion electrospinning. zein core-shell nanofiber emulsion electrospinning sodium caseinate Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Under Review Version 1 posted Editorial decision: Revision requested 22 Dec, 2025 Reviews received at journal 19 Dec, 2025 Reviews received at journal 12 Dec, 2025 Reviews received at journal 10 Dec, 2025 Reviewers agreed at journal 05 Dec, 2025 Reviewers agreed at journal 05 Dec, 2025 Reviewers agreed at journal 05 Dec, 2025 Reviewers agreed at journal 01 Dec, 2025 Reviewers invited by journal 01 Dec, 2025 Editor assigned by journal 21 Oct, 2025 Submission checks completed at journal 20 Oct, 2025 First submitted to journal 19 Oct, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. 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