Jul 2026· Black Sea Journal of Engineering and Science· Vol 9, pp. 1934-1944· 0 citations· 36 references
Abstract
This study aims to develop chitosan/poly(vinyl alcohol)/carrageenan biocomposite films incorporating Hypericum perforatum (St. John’s wort) oil (0.1–5%, w/w) and to evaluate the influence of oil incorporation on their structural, mechanical, and dielectric properties. FTIR analysis confirmed strong hydrogen bonding among polymer components and successful oil incorporation without new chemical bond formation. SEM results indicated increased surface heterogeneity and phase separation at higher oil contents. Increasing oil concentration reduced tensile strength (47.1–29.7 MPa), Shore A hardness, density, and dielectric constant (from 4.67 to 3.96), while significantly enhancing tensile strain (30.8–65.7%), demonstrating a plasticizing effect. Overall, it demonstrated that St. John's wort oil can be used as a natural plasticizer in bio-based polymer film applications.
This study developed Litsea cubeba essential oil (LCEO) microcapsules (LWM) incorporated into chitosan/polyvinyl alcohol (CP) films to create active composite packaging (CPM), with their physicochemical properties and preservative effects on refrigerated sea bass systematically evaluated. SEM confirmed that LCEO was ef...
While chitosan has emerged as a leading biodegradable alternative to petroleum-based plastics, its high moisture sensitivity and limited active functionality often compromise its barrier performance and shelf-life extension capabilities in food-packaging applications. In this study, citric acid-crosslinked chitosan fil...
T. E. Jeke, D. D. Herrera‐Balandrano, G. Leni et al.· International Journal of Bio...· 0 citations
Fish scale waste was valorized to develop a biodegradable active film with enhanced preservation performance. Gelatin and hydroxyapatite were extracted and combined with chitosan, while syringaldehyde was incorporated as a natural crosslinker and antibacterial agent to construct a dual-network structure. The combinatio...
Qian Peng, Qun Liu, Wanqing Xu et al.· International Journal of Bio...· 0 citations
The growing accumulation of petroleum-based plastic waste has intensified the search for biodegradable alternatives from renewable resources. This study investigated the effect of clove essential oil (CEO) on the mechanical and barrier properties of composite bioplastic films from semi-refined carrageenan and cassava s...
Etin Diah Permanasari, Larisa Mandalini· Science Get Journal· 0 citations
This study investigates the controlled deacetylation of konjac glucomannan (KGM) and its incorporation into agar (AGAR) and pullulan (PUL) to fabricate composite films (DKAP) for sustainable packaging applications. The effects of varying deacetylation degrees on the physicochemical and functional properties of KGM...
Qiao-Zhang She, Zhen-Dong Hu, F. Lei et al.· Journal of Applied Polymer S...· 0 citations
