Open roads and bridge: Preservation of fresh beef by a packaging film constructed from photosensitizing bacterial cellulose.

Journal: Food chemistry
Published Date: Oct 21, 2023

Abstract

Food packaging is now widely used in everyday life to protect food from certain environmental factors. In this work, we have successfully prepared a bacterial cellulose/chitosan-TPE-COOH composite film (BC/CS-TPE), which can achieve broad-spectrum killing of bacteria through a variety of antibacterial mechanisms and ensure the freshness of the beef. In this complex film, CS acts as "advance team", responsible for breaking through the cell wall or outer membrane of bacteria, while the reactive oxygen species produced by photosensitizer under irradiation attacks bacteria, further increasing the destructive effect on the bacterial cell membrane. This allows the film to have outstanding antibacterial properties that can kill 10 CFU/mL pathogens in 10 min. At the same time, cell experiments and hemolysis experiments proved that the film has good biocompatibility. Therefore, BC/CS-TPE film, as the efficient functional food packaging film, has a broad future application prospect.

Authors

  • Rui Chen
    College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shanxi, China.
  • Yajie Zhang
    College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shanxi, China.
  • Zuwang Zhang
    College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shanxi, China.
  • Lenan Yao
    College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shanxi, China.
  • Lizhi Liu
    Department of Anesthesiology, Division of Critical Care Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
  • Jianlong Wang
    College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shanxi, China.
  • Rong Wang
    College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shanxi, China. Electronic address: wangrong91@nwsuaf.edu.cn.

Keywords

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