Patent · US Active

Method for preparing intelligent antibacterial and antioxidative film

US11306186B2 · kind B2 · utility

0Cited by

0References

8Claims

0Family size

Assignee

Shanghai Ocean University · CN

Inventors

Jing Xie · Lo Wu, CN
Zhipeng Tang · Shanghai, CN
Chenwei Chen · Shanghai, CN
Jinfeng Wang · Shanghai, CN
Yuhan Zhang · Beijing, CN

Key dates

Filing date	Aug 20, 2018
Grant date	Apr 19, 2022
Priority date	—
Expiry date	Feb 18, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K2201/011
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for preparing an intelligent antibacterial and antioxidative film involves preparing a PVA solution; adding nano-TiO2 to the PVA solution to obtain a PVA-TiO2 solution; determining the optimal amount of nano-TiO2; preparing a PSPC solution; preparing a PSPC-TiO2-PVA solution; and producing a PSPC/TiO2/PVA film. The film has better mechanical performance than saccharide and protein films. Shelf life of food is prolonged as the film possesses antibacterial and antioxidative properties. Furthermore, the film shows different colors in various pH environments. The film has a wide range of applications in food packaging owing to the integration of color development and antibacterial and antioxidative properties.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.