期刊
TRENDS IN FOOD SCIENCE & TECHNOLOGY
卷 75, 期 -, 页码 23-35出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2018.02.018
关键词
TiO2 photocatalysis; Microbial inactivation; Food safety; Titanium dioxide; Food preservation
资金
- National Key R&D Program of China [2017YFD0400404]
- Collaborative Innovation Major Special Projects of Guangzhou City [201604020057]
- Agricultural Development and Rural Work of Guangdong Province [2017LM4173]
- International and Hong Kong - Macau - Taiwan Collaborative Innovation Platform of Guangdong Province on Intelligent Food Quality Control and Process Technology Equipment [2015KGJHZ001]
- Guangdong Provincial R & D Centre for the Modern Agricultural Industry on Non-destructive Detection and Intensive Processing of Agricultural Products
- Common Technical Innovation Team of Guangdong Province on Preservation and Logistics of Agricultural Products [2016LM2154]
- Innovation Centre of Guangdong Province for Modern Agricultural Science and Technology on Intelligent Sensing and Precision Control of Agricultural Product Qualities
Background: Microbial contamination is a serious challenge in the food industry. With the increasing demand for fresh, nutritious and healthy food, novel techniques for microbial inactivation are highly needed. By absorbing photoenergy, titanium dioxide (TiO2) based photocatalyst can produce reactive oxygen species (ROS) that are capable of inactivating microorganisms. Scope and approach: This review summarizes recent research developments of TiO2 photocatalysis (TPC) for antibacterial applications in liquid, gas and solid systems in the food industry. Basic principles of TPC, the mechanism of photocatalytic inactivation, and strategies for improving photoactivity are described, and applications of TPC for decomposing organic substances are presented. Furthermore, applications of combining TPC with other technologies are also discussed. Conclusions: and key findings: The review shows that TPC technology has the ability to inactivate foodborne microorganisms, but with some drawbacks such as catalyst deactivation and low utilization of visible light Modification can widen the light response into visible range and improve the photoactivity. The combined technologies can enhance the effectiveness of microbial inactivation. However, further study is still needed to improve both photocatalytic disinfection efficiency and food quality maintenance.
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