TY - JOUR
T1 - Photocatalytic H2 fumigation technology enhanced FSG/CS nanocomposite films for banana packaging
AU - Chen, Jie
AU - Huang, Kaiwei
AU - Zhang, Xiaoyan
AU - Lin, Hetong
AU - Yang, Da Peng
N1 - Publisher Copyright:
© 2025 Elsevier B.V.
PY - 2025/5/15
Y1 - 2025/5/15
N2 - The waste of agricultural products has driven the need for improved food preservation techniques. Herein, we propose an innovative dual preservation strategy combining Pt/TiO2 photocatalytic H2 fumigation with fish scale gelatin/chitosan (FSG/CS) nanocomposite film packaging to extend banana freshness. By incorporating Pt/TiO2 nanoparticles (NPs) into the FSG/CS matrix, FSG/CS-3 % NPs films were prepared, significantly enhancing antibacterial, mechanical, barrier, and hydrophobic properties. The films exhibited over 99 % antibacterial activity against E. coli and S. aureus, a 49.1 % increase in tensile strength, reduced water vapor transmission rate (WVTR) and oxygen permeability (OP), and a water contact angle (WCA) of 117.4°, demonstrating excellent hydrophobicity. The films also showed high biosafety (cell survival rate > 99.3 %) and complete biodegradability within 12 days. Photocatalytic H2 generation, requiring only water, achieved 4.5 ppm H2 in 3 min under xenon lamp (300 W) irradiation. This strategy extended banana storage by over 8 days, as photocatalytic H2 treatment enhanced antioxidant enzyme activity, reduced lipid peroxidation and ROS generation, and slowed physiological metabolism, while FSG/CS-3 % NPs film packaging inhibited microbial growth. This photocatalytic H2-enhanced FSG/CS nanocomposite film provides a promising solution for fruit preservation.
AB - The waste of agricultural products has driven the need for improved food preservation techniques. Herein, we propose an innovative dual preservation strategy combining Pt/TiO2 photocatalytic H2 fumigation with fish scale gelatin/chitosan (FSG/CS) nanocomposite film packaging to extend banana freshness. By incorporating Pt/TiO2 nanoparticles (NPs) into the FSG/CS matrix, FSG/CS-3 % NPs films were prepared, significantly enhancing antibacterial, mechanical, barrier, and hydrophobic properties. The films exhibited over 99 % antibacterial activity against E. coli and S. aureus, a 49.1 % increase in tensile strength, reduced water vapor transmission rate (WVTR) and oxygen permeability (OP), and a water contact angle (WCA) of 117.4°, demonstrating excellent hydrophobicity. The films also showed high biosafety (cell survival rate > 99.3 %) and complete biodegradability within 12 days. Photocatalytic H2 generation, requiring only water, achieved 4.5 ppm H2 in 3 min under xenon lamp (300 W) irradiation. This strategy extended banana storage by over 8 days, as photocatalytic H2 treatment enhanced antioxidant enzyme activity, reduced lipid peroxidation and ROS generation, and slowed physiological metabolism, while FSG/CS-3 % NPs film packaging inhibited microbial growth. This photocatalytic H2-enhanced FSG/CS nanocomposite film provides a promising solution for fruit preservation.
KW - Antioxidant enzyme
KW - Banana preservation
KW - Nanocomposite film
KW - Photocatalytic H fumigation
KW - Preservation
UR - https://www.scopus.com/pages/publications/105002386209
U2 - 10.1016/j.cej.2025.162415
DO - 10.1016/j.cej.2025.162415
M3 - 文章
AN - SCOPUS:105002386209
SN - 1385-8947
VL - 512
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 162415
ER -