Song Wei, Wu Nan, He Yikai, Zhao Huaixiang, Xu Jian, Ren Lili
College of Engineering and Technology, Jilin Agricultural University, Changchun 130118, China.
Key Laboratory of Bionic Engineering (Ministry of Education), College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China.
Food Chem X. 2024 Oct 24;24:101930. doi: 10.1016/j.fochx.2024.101930. eCollection 2024 Dec 30.
Intelligent packaging film has received more and more attention because it can help consumers obtain more intuitive information about the packaging, provide better preservation and advanced convenience. In this study, black rice anthocyanin (BRA) was added into composite film formed by starch (S) and esterified starch (ES). As the BRA content increased, the thickness and the total color difference of the S/ES-BRA film increased. The opacity of S/ES-BRA film decreased relative to that of the film without BRA, but increased with the increase of anthocyanin. Compared with S/ES film, the elongation at break of S/ES-BRA0.5 film increased from 33.1 % to 45.4 %, and the tensile strength decreased from 7.3 to 5.8 MPa. S/ES-BRA film had response to different pH values and underwent color changes in different buffer solutions. Intelligent color changing packaging film will used to monitor food quality, water quality and soil properties.
智能包装薄膜因其能帮助消费者获取有关包装的更直观信息、提供更好的保鲜效果和更高的便利性而受到越来越多的关注。在本研究中，将黑米花青素（BRA）添加到由淀粉（S）和酯化淀粉（ES）形成的复合薄膜中。随着BRA含量的增加，S/ES-BRA薄膜的厚度和总色差增大。S/ES-BRA薄膜的不透明度相对于不含BRA的薄膜降低，但随着花青素含量的增加而增加。与S/ES薄膜相比，S/ES-BRA0.5薄膜的断裂伸长率从33.1%提高到45.4%，拉伸强度从7.3MPa降低到5.8MPa。S/ES-BRA薄膜对不同的pH值有响应，并在不同的缓冲溶液中发生颜色变化。智能变色包装薄膜将用于监测食品质量、水质和土壤性质。
