Utilization of Kiwi Peel Lignocellulose as Fillers in Poly(Lactic Acid) Films

Authors : Ece SÖĞÜT, Atıf Can SEYDİM

Pages : 283-294

Doi:10.18596/jotcsa.1024326

View : 13 | Download : 5

Publication Date : 2022-02-28

Article Type : Research Paper

Abstract :Lignocellulosic structures extracted from agricultural wastes have great potential in re-designing sustainable packaging materials. In this study, the utilization of kiwifruit peels insert ignore into journalissuearticles values(KFP); insert ignore into journalissuearticles values(unt); and lignocellulosic structures extracted from KFP, which were alkali-treated insert ignore into journalissuearticles values(al);, acid-treated insert ignore into journalissuearticles values(ac);, and acetylated insert ignore into journalissuearticles values(ace);, in polyinsert ignore into journalissuearticles values(lactic acid); insert ignore into journalissuearticles values(PLA); films were investigated. Untreated and treated lignocellulosic structures were added to PLA film-forming solutions at 5% insert ignore into journalissuearticles values(w/w based on PLA);. The film samples were characterized by their mechanical, water vapor permeability insert ignore into journalissuearticles values(WVP);, FTIR, and optical properties. FTIR results presented that the acid treatment and acetylation have changed the chemical structure of KPF, which resulted in changes in intensities and peak shifts between 1400-1900 cm-1. WVP of the films containing KPF-based lignocellulosic structures was lower than control PLA films insert ignore into journalissuearticles values(p<0.05);. The addition of KPF-based lignocellulosic structures increased the tensile strength and elastic modulus insert ignore into journalissuearticles values(p>0.05); compared to PLA control films. Films including acid-treated lignocellulosic structures had high opacity and relatively low lightness values insert ignore into journalissuearticles values(p<0.05);. These results showed that adding lignocellulosic structures into PLA films is a promising method to improve the film properties.
Keywords : Kiwifruit peels, Lignocellulose, Modification, Poly lactic acid,