Summary Post-harvest apricot fruits are susceptible to moisture loss and disease leading to quality deterioration. Herein, we identified that the cell wall of the wheat grain regulated the hydration properties of grains. Arabinoxylan/β-glucan/ferulic acid/cellulose (ABF-C) composite films simulating the cell wall of the wheat aleurone layer were prepared and showed excellent thermodynamic properties and hydration properties. Meanwhile, the decay percentage, weight loss percentage and respiration intensity of apricot fruits at 35 days of storage were greatly decreased by 23.5%, 23.93% and 39.95%, respectively, and the shelf life of apricot fruits was extended by 7 days after the coating ABF-8%C composite film treatment. The ABF-C composite films effectively prevented the dissipation of moisture of high mobility in apricot fruits during storage. We provide new insight into moisture regulation mechanism of edible films simulating cell wall structure on post-harvest fruits.
To address the challenge of preserving fresh chestnuts, chitosan (CS), hydroxypropyl methylcellulose (HPMC), nisin (N), and sodium alginate (SA) were utilized in the preparation of a bilayer edible film named CS-HPMC-N/SA, which was compared to the monolayer films CS-HPMC and CS-HPMC-N. In comparison to the CS-HPMC film, the CS-HPMC-N and CS-HPMC-N/SA films exhibited increased water vapor permeability (WVP), oxygen permeability, and thickness, while transparency, tensile strength (TS), and elongation at break (EAB) were reduced. The bilayer film CS-HPMC-N/SA showed higher WVP, transparency, thickness, and EAB, but lower TS than the monolayer film CS-HPMC-N. The chestnuts coated with CS-HPMC-N/SA showed lower respiratory intensity and decay rate compared to those coated with CS-HPMC and CS-HPMC-N. These results suggested that the bilayer film CS-HPMC-N/SA, containing nisin, has potential as an edible material for preserving fresh chestnuts.
危险品化学品经营许可证（带存储）