Zou Yufei, Wang Siyu, Liu Tingting, Zhang Qian, Zhang Yingquan, Jiang Changxing
School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an 223003, Jiangsu, PR China.
The Affiliated Huai'an Hospital of Xuzhou Medical University and Huai'an Second People's Hospital, Huai'an 223002, Jiangsu, PR China.
Int J Biol Macromol. 2025 Feb;290:138959. doi: 10.1016/j.ijbiomac.2024.138959. Epub 2024 Dec 18.
In this study, smart films of EFS, EFS-SiO and EFS-SiO-CRE were successfully developed by using Euryale ferox starch (EFS), nano-SiO and Chinese rose extract (CRE). The Chinese rose flower had a high content of anthocyanins (1.73 mg/g) and CRE exhibited different colors in varying pH buffers (2-13). The addition of nano-SiO decreased tensile strength (TS) (41.08 to 16.75 MPa) and elongation at break (EAB) (6.71 to 2.69 %) of the EFS film. Incorporation with CRE could significantly increase water vapor permeability (4.47 to 5.35 10 g m s Pa), TS (16.75 to 26.19 MPa) and EAB (2.69 to 4.62 %) of the EFS-SiO film. Incorporation of nano-SiO and CRE significantly enhanced the thermal stability and light barrier performance of the EFS film. The EFS-SiO-CRE films showed excellent pH and ammonia sensitivities with different colors varying from red to blue. The EFS-SiO-CRE-III film displayed strong antioxidant activity with a maximum DPPH scavenging rate of 96.54 ± 0.44 %. When employed for monitoring freshness of chicken breast meat, the EFS-SiO-CRE-III film showed the most significant visible color changes at 24 h when the TVB-N content was 21.7 mg/100 g. Findings supported the application of this strategy in fabrication of the EFS-SiO-CRE-III film for smart packaging.
在本研究中，利用芡实淀粉（EFS）、纳米二氧化硅（nano-SiO₂）和月季提取物（CRE）成功制备了EFS、EFS-SiO₂和EFS-SiO₂-CRE智能薄膜。月季花含有高含量的花青素（1.73毫克/克），且CRE在不同pH缓冲液（2 - 13）中呈现不同颜色。添加纳米二氧化硅降低了EFS薄膜的拉伸强度（TS）（从41.08兆帕降至16.75兆帕）和断裂伸长率（EAB）（从6.71%降至2.69%）。与CRE复合可显著提高EFS-SiO₂薄膜的水蒸气透过率（从4.47×10⁻⁶克·米⁻¹·秒⁻¹·帕⁻¹升至5.35×10⁻⁶克·米⁻¹·秒⁻¹·帕⁻¹）、TS（从16.75兆帕升至26.19兆帕）和EAB（从2.69%升至4.62%）。纳米二氧化硅和CRE的复合显著增强了EFS薄膜的热稳定性和阻光性能。EFS-SiO₂-CRE薄膜表现出优异的pH和氨敏感性，颜色从红色变为蓝色。EFS-SiO₂-CRE-III薄膜表现出较强的抗氧化活性，最大DPPH清除率为96.54±0.44%。当用于监测鸡胸肉的新鲜度时，在TVB-N含量为21.7毫克/100克时，EFS-SiO₂-CRE-III薄膜在24小时时呈现出最显著的可见颜色变化。研究结果支持了该策略在制备用于智能包装的EFS-SiO₂-CRE-III薄膜中的应用。
