This　study　explored　the　potential　of　pineapple　peel　waste　as　a　sustainable　source　of　cellulose　nanofibers　(CNF)　for　Pickering　emulsion　stabilization.　Pineapple　peel　cellulose,　enzymatically　extracted　and　subsequently　TEMPOoxidized　and　sonicated　to　produce　TEMPO-oxidized　cellulose　nanofibers　(TC),　was　investigated　as　an　emulsifier.　The　effects　of　TC　concentrations　(0.2,　0.4,　0.6,　0.8,　and　1.0　%　wt%)　and　oil　phase　volumes　(20　%,　30　%,　40　%,　and　50　%)　on　rheological　properties,　and　emulsion　stability　were　determined.　Results　demonstrated　that　increasing　TC　concentration　significantly　enhanced　emulsion　stability　through　the　formation　of　a　cohesive　threedimensional　network　structure.　This　stability　was　maintained　across　a　broad　range　of　pH,　ionic　strength,　and　temperature.　Molecular　dynamics　simulations　supported　these　findings,　revealing　that　TC　enhances　emulsion　stability　through　favorable　intermolecular　interactions.　This　work　highlights　the　potential　of　pineapple　peelderived　CNF　as　a　sustainable　and　high-performing　alternative　for　emulsion　stabilization　applications.